0 varer | Fuse Monitor RL 9075 • According to IEC/EN 60 255-1 • To monitor fuses in single and 3-phase AC voltage systems with neutral • Adjustable operating voltages: 400 V / 230 V and 230 V / 130 V and 110 V / 64V • Undervoltage detection below 0.8 x UB • Fast detection of a blown fuse • No separate auxiliary necessary • Output: 1 changeover contact • De-energized on trip • Adjustable switching delay • Width: -- RL 9075: 35 mm -- RN 9075: 52.5 mm | Download datablad |
 | Fuse Monitor RN 9075 • According to IEC/EN 60 255-1 • To monitor fuses in single and 3-phase AC voltage systems with neutral • Adjustable operating voltages: 400 V / 230 V and 230 V / 130 V and 110 V / 64V • Undervoltage detection below 0.8 x UB • Fast detection of a blown fuse • No separate auxiliary necessary • Output: 1 changeover contact • De-energized on trip • Adjustable switching delay • Width: -- RL 9075: 35 mm -- RN 9075: 52.5 mm | Download datablad |
 | Trip circuit monitor UG 5124 • According to IEC/EN 60 255-1 • Monitors continuously breaker trip circuits • 2 changeover contacts • Galvanic separated electronic • De-energized on trip • With pluggable terminal blocks for easy exchange of devices • Terminal blocks coded • Width 22,5 mm | Download datablad |
 | Undervoltage relay with phase indicator and test key IL 9176 • According to IEC/EN 60 255 • Detection of - undervoltage 1 up to 3-phase, 0.85 x UN - phase failure • Without auxiliary voltage • De-energized on trip • LED indicator for L1, L2, L3 with test key to simulate failure • 2 changeover contacts • Width 35 mm | Download datablad |
 | Phase indicator IK 9168 • According to IEC/EN 60 255, DIN VDE 0435-303 • Indication of phase failure in 3-phase systems • Single phase connection possible • Independent of phase sequence • LED indicator for each phase • Devices available in 2 enclosure versions: IK 9168: depth 59 mm, with terminals at the bottom for installation systems and industrial distribution systems according to DIN 43 880 SK 9168: depth 98 mm, with terminals at the top for cabinets with mounting plate and cable duct • Width 17.5 mm | Download datablad |
 | Phase indicator SK 9168 • According to IEC/EN 60 255, DIN VDE 0435-303 • Indication of phase failure in 3-phase systems • Single phase connection possible • Independent of phase sequence • LED indicator for each phase • Devices available in 2 enclosure versions: IK 9168: depth 59 mm, with terminals at the bottom for installation systems and industrial distribution systems according to DIN 43 880 SK 9168: depth 98 mm, with terminals at the top for cabinets with mounting plate and cable duct • Width 17.5 mm | Download datablad |
 | Phase monitor RK 9872 • According to IEC/EN 60255-1 • Detection of under-/overvoltage and phase sequence in 3-phase voltage systems • Without separate auxiliary voltage • LED-Indication for operation voltage and contact position • De-energized on trip • With fixed response value for undervoltage • With fixed response value for overvoltage • Width: 17,5 mm | Download datablad |
 | Phase monitor IK 9169 • According to IEC/EN 60 255, DIN VDE 0435-303 • Detection of phase failure in 3-phase systems • Single phase connection possible • Closed circuit operation • Independent of phase sequence • LED indicator for each phase • Output 1 changeover contact • Devices available in 2 enclosure versions: - I- and R-versions, e.g. IK 9169 with depth 61 mm or RK 9169 with depth 71 mm with terminls at the bottom for installation systems and industrial distribution systems according to DIN 43880 - S-version, e.g. SK 9169: depth 100 mm, with terminals at the top for cabinets with mounting plate and cable duct • Width 17.5 mm | Download datablad |
 | Phase monitor RK 9169 • According to IEC/EN 60 255, DIN VDE 0435-303 • Detection of phase failure in 3-phase systems • Single phase connection possible • Closed circuit operation • Independent of phase sequence • LED indicator for each phase • Output 1 changeover contact • Devices available in 2 enclosure versions: - I- and R-versions, e.g. IK 9169 with depth 61 mm or RK 9169 with depth 71 mm with terminls at the bottom for installation systems and industrial distribution systems according to DIN 43880 - S-version, e.g. SK 9169: depth 100 mm, with terminals at the top for cabinets with mounting plate and cable duct • Width 17.5 mm | Download datablad |
 | Phase monitor SK 9169 • According to IEC/EN 60 255, DIN VDE 0435-303 • Detection of phase failure in 3-phase systems • Single phase connection possible • Closed circuit operation • Independent of phase sequence • LED indicator for each phase • Output 1 changeover contact • Devices available in 2 enclosure versions: - I- and R-versions, e.g. IK 9169 with depth 61 mm or RK 9169 with depth 71 mm with terminls at the bottom for installation systems and industrial distribution systems according to DIN 43880 - S-version, e.g. SK 9169: depth 100 mm, with terminals at the top for cabinets with mounting plate and cable duct • Width 17.5 mm | Download datablad |
 | Phase-sequence relay IL 9059 • According to DIN EN 60255 • Detection of incorrect phase sequence • No separately auxiliary voltage necessary • Nominal voltage range 3 AC 380 ... 690 V • Suitable for operation with inverters (f = 40 ... 80 Hz) • Relay output: - IL/SL 9059: 1 changeover contact - OA 9059: 1 NC contact • Extended temperature range • Devices available in 3 enclosure versions: I L 9059: depth 59 mm, with terminals at the bottom for installation systems and industrial distribution systems according to DIN 43 880 SL 9059: depth 98 mm, with terminals at the top for cabinets with mounting plate and cable duct • OA 9059: sealed modul with stranded wire connection suitable for mounting in terminal box • Width - IL/SL 9059: 35 mm - OA 9059: 62 mm | Download datablad |
 | Phase-sequence relay SL 9059 • According to DIN EN 60255 • Detection of incorrect phase sequence • No separately auxiliary voltage necessary • Nominal voltage range 3 AC 380 ... 690 V • Suitable for operation with inverters (f = 40 ... 80 Hz) • Relay output: - IL/SL 9059: 1 changeover contact - OA 9059: 1 NC contact • Extended temperature range • Devices available in 3 enclosure versions: I L 9059: depth 59 mm, with terminals at the bottom for installation systems and industrial distribution systems according to DIN 43 880 SL 9059: depth 98 mm, with terminals at the top for cabinets with mounting plate and cable duct • OA 9059: sealed modul with stranded wire connection suitable for mounting in terminal box • Width - IL/SL 9059: 35 mm - OA 9059: 62 mm | Download datablad |
 | Phase-sequence relay OA 9059 • According to DIN EN 60255 • Detection of incorrect phase sequence • No separately auxiliary voltage necessary • Nominal voltage range 3 AC 380 ... 690 V • Suitable for operation with inverters (f = 40 ... 80 Hz) • Relay output: - IL/SL 9059: 1 changeover contact - OA 9059: 1 NC contact • Extended temperature range • Devices available in 3 enclosure versions: I L 9059: depth 59 mm, with terminals at the bottom for installation systems and industrial distribution systems according to DIN 43 880 SL 9059: depth 98 mm, with terminals at the top for cabinets with mounting plate and cable duct • OA 9059: sealed modul with stranded wire connection suitable for mounting in terminal box • Width - IL/SL 9059: 35 mm - OA 9059: 62 mm | Download datablad |
 | Phase-sequence relay BA 9041 • According to IEC 255, EN 60 255, VDE 0435 part 303 • Detection of wrong phase sequence • 1 or 2 changeover contacts • Width 45 mm | Download datablad |
 | Unbalance relay AI 941N • According to IEC 255, EN 60 255, VDE 0435 part 303 • Detection of wrong phase sequence • 1 or 2 changeover contacts • Width 45 mm | Download datablad |
 | Unbalance relay MK 9056N • According to IEC/EN 60 255, DIN VDE 0435-303 • Detection of wrong phase sequence • 2 changeover contacts • Wire connection: also 2 x 1.5 mm2 stranded ferruled, or 2 x 2.5 mm2 solid DIN 46 228-1/-2/-3/-4 • MK 9056N as option with pluggable terminal blocks for easy exchange of devices - with screw terminals - or with cage clamp terminals • Width 22.5 mm | Download datablad |
 | Phase Sequence Indicator IK 9178 • According to IEC/EN 60 255, DIN VDE 0435-303 • Indication of phase sequence in 3-phase systems • Without auxiliary supply • LED indicator for phase sequence • Devices available in 2 enclosure versions: IK 9178: depth 59 mm, with terminals at the bottom for installation systems and industrial distribution systems according to DIN 43 880 SK 9178: depth 98 mm, with terminals at the top for cabinets with mounting plate and cable duct • Width 17.5 mm | Download datablad |
 | Phase Sequence Indicator SK 9178 • According to IEC/EN 60 255, DIN VDE 0435-303 • Indication of phase sequence in 3-phase systems • Without auxiliary supply • LED indicator for phase sequence • Devices available in 2 enclosure versions: IK 9178: depth 59 mm, with terminals at the bottom for installation systems and industrial distribution systems according to DIN 43 880 SK 9178: depth 98 mm, with terminals at the top for cabinets with mounting plate and cable duct • Width 17.5 mm | Download datablad |
 | Direction-of-rotation monitor (phase-sequence relay) IK 9179 • According to IEC/EN 60255, DIN VDE 0435-303 • Detection of phase sequence in 3-phase systems • Without auxiliary voltage • Closed circuit operation • LED indicator for phase sequence • Output 1 changeover contact • Devices available in 2 enclosure versions: - I- and R-model, e.g. IK 9169 with depth 61 mm or RK 9169 withdepth 71 mm with terminals at the bottom for installation systems and industrial distribution systems according to DIN 43 880 - S-model, e.g. SK 9169 depth 100 mm, with terminals at the top for cabinets with mounting plate and cable duct • Width 17.5 mm | Download datablad |
 | Phase Sequence Monitor (Phase Sequence Relay) RK 9179 • According to IEC/EN 60255, DIN VDE 0435-303 • Detection of phase sequence in 3-phase systems • Without auxiliary voltage • Closed circuit operation • LED indicator for phase sequence • Output 1 changeover contact • Devices available in 2 enclosure versions: - I- and R-model, e.g. IK 9169 with depth 61 mm or RK 9169 withdepth 71 mm with terminals at the bottom for installation systems and industrial distribution systems according to DIN 43 880 - S-model, e.g. SK 9169 depth 100 mm, with terminals at the top for cabinets with mounting plate and cable duct • Width 17.5 mm | Download datablad |
 | Phase Sequence Monitor (Phase Sequence Relay) SK 9179 • According to IEC/EN 60255, DIN VDE 0435-303 • Detection of phase sequence in 3-phase systems • Without auxiliary voltage • Closed circuit operation • LED indicator for phase sequence • Output 1 changeover contact • Devices available in 2 enclosure versions: - I- and R-model, e.g. IK 9169 with depth 61 mm or RK 9169 withdepth 71 mm with terminals at the bottom for installation systems and industrial distribution systems according to DIN 43 880 - S-model, e.g. SK 9169 depth 100 mm, with terminals at the top for cabinets with mounting plate and cable duct • Width 17.5 mm | Download datablad |
 | Asymmetry Relay AK 9840 • According to EN 60 255-1 • For nominal voltages from 3 AC 230 up to 500 V • Detection of - voltage asymmetry - incorrect phase sequence - phase failure - undervoltage • Voltage feedback recognition • Also suitable for harmonic industrial mains • Closed circuit operation • Contact position indication • With adjustable delay • 2 C/O contacts • Width: 75 mm | Download datablad |
 | Asymmetry Relay BA 9040 • According to IEC 255, EN 60 255, VDE 0435 part 303 • Recognition of - voltage asymmetry - phase failure - voltage feedback - optionally with phase sequence recognition • Optionally with adjustable response delay • 2 LED displays for power supply and state of contact • Wire connection: also 2 x 1.5 mm2 stranded ferruled, or 2 x 2.5 mm2 solid DIN 46 228-1/-2/-3/-4 • As option with pluggable terminal blocks for easy exchange of devices - with screw terminals - or with cage clamp terminals • BA 9040: width 45 mm MK 9040N: width 22.5 mm | Download datablad |
 | Asymmetry Relay MK 9040N • According to IEC 255, EN 60 255, VDE 0435 part 303 • Recognition of - voltage asymmetry - phase failure - voltage feedback - optionally with phase sequence recognition • Optionally with adjustable response delay • 2 LED displays for power supply and state of contact • Wire connection: also 2 x 1.5 mm2 stranded ferruled, or 2 x 2.5 mm2 solid DIN 46 228-1/-2/-3/-4 • As option with pluggable terminal blocks for easy exchange of devices - with screw terminals - or with cage clamp terminals • BA 9040: width 45 mm MK 9040N: width 22.5 mm | Download datablad |
 | Asymmetry Relay BA 9042 • According to IEC 255, EN 60 255-1 • For nominal voltage from 3 AC 100 V to 500 V • Detection of - voltage asymmetry - wrong phase sequence - phase failure • Detection of feedback voltage • Closed circuit operation • LED indicators for operation and state of contacts • Optionally with adjustable time delay • Width 45 mm | Download datablad |
 | Frequency Relay BA 9837 • According to DIN VDE 0660 part 302 (pr EN 60 947-8) and part 303 • 1 input for PTC-resistors or bimetal contacts • Broken wire detection in sensor circuit • Optionally with no voltage reclosing interlock • Closed circuit operation • 1 or 2 changeover contacts • Width 45 mm | Download datablad |
 | Frequency Relay AA 9837 • According IEC/EN 60255, DIN VDE 0435-303 • Detection of under- or overfrequency • Adjustable response value • Optionally 1 or 2 changeover contacts • Width 45 mm | Download datablad |
 | Frequency Relay AA 9838 • According IEC/EN 60255, DIN VDE 0435-303 • Detection of under- or overfrequency • Adjustable response value • Optionally 1 or 2 changeover contacts • Width 45 mm | Download datablad |
 | Frequency Relay IL 9837 • According to IEC/EN 60 255, DIN VDE 0435-303 • Overfrequency or underfrequency monitoring of AC voltages • Adjustable response value fmin. or fmax 5 ... 200 Hz or 15 ... 600 Hz • Adjustable hysteresis • Large voltage range of the measuring input (nominal voltage AC 24 ... 440 V) • De-energized on trip • LED indication for auxiliary voltage, measuring voltage and contact position • 1 changeover contact • As option for frequency inverters with a range of 1 … 300 Hz • 2 changeover contacts available on request • As option adjustable start-up delay available • Energized on trip function available on request • Devices available in 2 enclosure versions: IL 9837: depth 58 mm, with terminals at the bottom for installation systems and industrial distribution systems according to DIN 43 880 SL 9837: depth 98 mm, with terminals at the top for cabinets with mounting plate and cable duct • 35 mm width | Download datablad |
 | Frequency Relay SL 9837 • According to IEC/EN 60 255, DIN VDE 0435-303 • Overfrequency or underfrequency monitoring of AC voltages • Adjustable response value fmin. or fmax 5 ... 200 Hz or 15 ... 600 Hz • Adjustable hysteresis • Large voltage range of the measuring input (nominal voltage AC 24 ... 440 V) • De-energized on trip • LED indication for auxiliary voltage, measuring voltage and contact position • 1 changeover contact • As option for frequency inverters with a range of 1 … 300 Hz • 2 changeover contacts available on request • As option adjustable start-up delay available • Energized on trip function available on request • Devices available in 2 enclosure versions: IL 9837: depth 58 mm, with terminals at the bottom for installation systems and industrial distribution systems according to DIN 43 880 SL 9837: depth 98 mm, with terminals at the top for cabinets with mounting plate and cable duct • 35 mm width | Download datablad |
 | Neutral Monitor IL 9069 • According to IEC/EN 60 255-1 • Detection of -- missing neutral in the system -- broken neutral on IL/SL 9069 -- neutral exchanged against phase • Detection of phase failure also with disconnected load • For 3-phase systems • De-energized on trip • LED indicator for operation/state of output contacts • Single phase connection possible • Without auxiliary voltage • 2 cangeover contacts • Optionally with adjustable asymmetry detection and on delay • Devices available in 2 enclosure version: IL 9069: depth 59 mm with terminals at the bottom for installations systems and industrial distribution systems according to DIN 43 880 SL 9069: depth 98 mm with terminals at the top for cabinets with mounting plate and cable duct • Width 35 mm | Download datablad |
 | Neutral Monitor SL 9069 • According to IEC/EN 60 255-1 • Detection of -- missing neutral in the system -- broken neutral on IL/SL 9069 -- neutral exchanged against phase • Detection of phase failure also with disconnected load • For 3-phase systems • De-energized on trip • LED indicator for operation/state of output contacts • Single phase connection possible • Without auxiliary voltage • 2 cangeover contacts • Optionally with adjustable asymmetry detection and on delay • Devices available in 2 enclosure version: IL 9069: depth 59 mm with terminals at the bottom for installations systems and industrial distribution systems according to DIN 43 880 SL 9069: depth 98 mm with terminals at the top for cabinets with mounting plate and cable duct • Width 35 mm | Download datablad |
 | Fuse Monitor IL 9075 • According to IEC/EN 60 255, DIN VDE 0435-303 • Recognizes fuse failures in three-phase mains up to 3 AC 690 V • Can be used for all types and sizes of fuses • Independent of phase sequence • Signals even if loads are switched off • No malfunction on - asymmetrical mains - mains with harmonic waves - motors producing feedback • Shorter response time than with motor circuit-breakers • Green LED for intact fuses • Red LED for fuse failure • As option: open/closed circuit operation in the case of IP 9075 programmable via X4-X5 or X3-X4 • As option: with manual reset function and remote reset, programmable via X1-X2 • As option: 1 NO contact or 2 changeover contacts • Devices available in 2 enclosure versions: I-model: depth 59 mm, with terminals at the bottom for installation systems and industrial distribution systems according to DIN 43 880 S-model: depth 98 mm, with terminals at the top for cabinets with mounting plate and cable duct • IL 9075, SL 9075: width 35 mm IP 9075, SP 9075: width 70 mm | Download datablad |
 | Fuse Monitor IP 9075 • According to IEC/EN 60 255, DIN VDE 0435-303 • Recognizes fuse failures in three-phase mains up to 3 AC 690 V • Can be used for all types and sizes of fuses • Independent of phase sequence • Signals even if loads are switched off • No malfunction on - asymmetrical mains - mains with harmonic waves - motors producing feedback • Shorter response time than with motor circuit-breakers • Green LED for intact fuses • Red LED for fuse failure • As option: open/closed circuit operation in the case of IP 9075 programmable via X4-X5 or X3-X4 • As option: with manual reset function and remote reset, programmable via X1-X2 • As option: 1 NO contact or 2 changeover contacts • Devices available in 2 enclosure versions: I-model: depth 59 mm, with terminals at the bottom for installation systems and industrial distribution systems according to DIN 43 880 S-model: depth 98 mm, with terminals at the top for cabinets with mounting plate and cable duct • IL 9075, SL 9075: width 35 mm IP 9075, SP 9075: width 70 mm | Download datablad |
 | Fuse Monitor SL 9075 • According to IEC/EN 60 255, DIN VDE 0435-303 • Recognizes fuse failures in three-phase mains up to 3 AC 690 V • Can be used for all types and sizes of fuses • Independent of phase sequence • Signals even if loads are switched off • No malfunction on - asymmetrical mains - mains with harmonic waves - motors producing feedback • Shorter response time than with motor circuit-breakers • Green LED for intact fuses • Red LED for fuse failure • As option: open/closed circuit operation in the case of IP 9075 programmable via X4-X5 or X3-X4 • As option: with manual reset function and remote reset, programmable via X1-X2 • As option: 1 NO contact or 2 changeover contacts • Devices available in 2 enclosure versions: I-model: depth 59 mm, with terminals at the bottom for installation systems and industrial distribution systems according to DIN 43 880 S-model: depth 98 mm, with terminals at the top for cabinets with mounting plate and cable duct • IL 9075, SL 9075: width 35 mm IP 9075, SP 9075: width 70 mm | Download datablad |
 | Fuse Monitor SP 9075 • According to IEC/EN 60 255, DIN VDE 0435-303 • Recognizes fuse failures in three-phase mains up to 3 AC 690 V • Can be used for all types and sizes of fuses • Independent of phase sequence • Signals even if loads are switched off • No malfunction on - asymmetrical mains - mains with harmonic waves - motors producing feedback • Shorter response time than with motor circuit-breakers • Green LED for intact fuses • Red LED for fuse failure • As option: open/closed circuit operation in the case of IP 9075 programmable via X4-X5 or X3-X4 • As option: with manual reset function and remote reset, programmable via X1-X2 • As option: 1 NO contact or 2 changeover contacts • Devices available in 2 enclosure versions: I-model: depth 59 mm, with terminals at the bottom for installation systems and industrial distribution systems according to DIN 43 880 S-model: depth 98 mm, with terminals at the top for cabinets with mounting plate and cable duct • IL 9075, SL 9075: width 35 mm IP 9075, SP 9075: width 70 mm | Download datablad |
 | Fuse monitor UG 9075 • According to IEC/EN 60 255, DIN VDE 0435-303 • To monitor fuses in single and 3-phase AC voltage systems • Undervoltage detection below 0.7 x UN • No separate auxiliary necessary • 2 changeover contacts • 2 nominal voltages adjustable: 3/N AC 240 V / 140 V or 3/N AC400 V / 230 V or fixed nominal voltage: 3/N AC 110 V / 64 V • Adjustable operate delay • Energized on trip • Automatic adjustment to 50 Hz and 60 Hz mains frequency • Width 22.5 mm | Download datablad |
 | Frequency Relay IK 9143 • According to IEC/EN 60 255, DIN VDE 0435-303 • Monitoring of overfrequency and underfrequency (selectable) in A.C. power systems • Without auxiliary voltage • Selection of frequency range for 50 or 60 Hz systems • Adjustable response value • Adjustable hysteresis • De-energized on trip (output relay not activated in case of error) • LED indicators for measuring voltage and contact position • 1 changeover contact • As option energized on trip (output relay activated in case of error) • Devices available in 2 enclosure versions: IK 9143: depth 58 mm, with terminals at the bottom for installation systems and industrial distribution systems according to DIN 43 880 SK 9143: depth 98 mm, with terminals at the top for cabinets with mounting plate and cable duct • 17.5 mm width | Download datablad |
 | Frequency Relay SK 9143 • According to IEC/EN 60 255, DIN VDE 0435-303 • Monitoring of overfrequency and underfrequency (selectable) in A.C. power systems • Without auxiliary voltage • Selection of frequency range for 50 or 60 Hz systems • Adjustable response value • Adjustable hysteresis • De-energized on trip (output relay not activated in case of error) • LED indicators for measuring voltage and contact position • 1 changeover contact • As option energized on trip (output relay activated in case of error) • Devices available in 2 enclosure versions: IK 9143: depth 58 mm, with terminals at the bottom for installation systems and industrial distribution systems according to DIN 43 880 SK 9143: depth 98 mm, with terminals at the top for cabinets with mounting plate and cable duct • 17.5 mm width | Download datablad |
 | Frequency Relay MK 9837N • According to IEC / EN 60 255, VDE 0435 part 303 • Detection of over- or underfrequency of alternating voltage (adjustable function) • Fast reaction time by measuring duration of cycle of input frequency • Universal measuring input for AC-voltages of 15 ... 280 V as well as 30 ... 550 V • As option with measuring input for inverters • 4 ranges adjustable response value 1,5 ... 200 Hz or 5 ... 600 Hz • Adjustable hysteresis • Adjustable start up time delay 0 ... 50 s at function underfrequency • Adjustable monitoring time for missing input signal at function overfrequency • Response delay programmable via terminals 0 ... 100 s • Alarm storing or auto-reset programmable via terminals • Galvanic separation between measuring input, auxiliary voltage and output contacts • MH 9837 available with wide input range for auxiliary supply (AC/DC 24 ... 60 V or AC/DC 110 ... 230 V) • 2 changeover contacts, closed circuit operation • Open circuit operation on request • LED indication for auxiliary voltage, measuring voltage and alarm status • MH 9837.12/008: with galvanic separated analogue output (current/ voltage) and 11 step LED chain for the actual frequency • Device available with 2 response values and seperately controlled outputrelays for under- and overfrequency see MK 9837N/500 • 2 possible compact designs: MK 9837N: Width 22,5 mm MH 9837: Width 45 mm | Download datablad |
 | Frequency Relay MH 9837 • According to IEC / EN 60 255, VDE 0435 part 303 • Detection of over- or underfrequency of alternating voltage (adjustable function) • Fast reaction time by measuring duration of cycle of input frequency • Universal measuring input for AC-voltages of 15 ... 280 V as well as 30 ... 550 V • As option with measuring input for inverters • 4 ranges adjustable response value 1,5 ... 200 Hz or 5 ... 600 Hz • Adjustable hysteresis • Adjustable start up time delay 0 ... 50 s at function underfrequency • Adjustable monitoring time for missing input signal at function overfrequency • Response delay programmable via terminals 0 ... 100 s • Alarm storing or auto-reset programmable via terminals • Galvanic separation between measuring input, auxiliary voltage and output contacts • MH 9837 available with wide input range for auxiliary supply (AC/DC 24 ... 60 V or AC/DC 110 ... 230 V) • 2 changeover contacts, closed circuit operation • Open circuit operation on request • LED indication for auxiliary voltage, measuring voltage and alarm status • MH 9837.12/008: with galvanic separated analogue output (current/ voltage) and 11 step LED chain for the actual frequency • Device available with 2 response values and seperately controlled outputrelays for under- and overfrequency see MK 9837N/500 • 2 possible compact designs: MK 9837N: Width 22,5 mm MH 9837: Width 45 mm | Download datablad |
 | Frequency Relay MK 9837N/5_0 • According to IEC / EN 60 255, VDE 0435 Teil 303 • Monitoring of AC voltage for under and overfrequency, can be used also for pre-warning • Separate relay outputs for over- or underfrequency (1 or 2 changeover contacts each) • Alternative usage for monitoring of a frequency window • Separate adjustment of response value for over- or underfrequency at 4 ranges each, 1.5 ... 200 Hz or 5 ... 600 Hz • Second response value for prewarning possible • Fast reaction time by measuring duration of cycle of input frequency • Universal measuring input for AC-voltages of 15 ... 280 V as well as 30 ... 550 V • As option with measuring input for inverters • Programmable hysteresis of response value: 2 ... 10 % • Start up time delay programmable via terminals from 0 ... 50 s e.g. continuously • Manual or auto-reset programmable via terminals • Galvanic separation between measuring input, auxiliary voltage and output contacts • MH 9837/508: with galvanic separated analogue output (current/ voltage) and 11 step LED chain for the actual frequency • MH 9837/5_0: with wide input range for auxiliary voltage available (AC/DC 24 ... 60 V or AC/DC 110 ... 230 V) • Closed circuit operation (de-energized on trip) • LED indication for auxiliary voltage, measuring voltage and alarm status • Device available with 2 contacts MK 9837N/5_0: 2 x 1 changeover contact MH 9837/5_0: 2 x 2 changeover contacts or wide auxiliary voltage range • 2 possible compact designs: MK 9837N/5_0: Width 22,5 mm MH 9837/5_0: Width 45 mm | Download datablad |
 | Frequency Relay MH 9837/5_0 • According to IEC / EN 60 255, VDE 0435 Teil 303 • Monitoring of AC voltage for under and overfrequency, can be used also for pre-warning • Separate relay outputs for over- or underfrequency (1 or 2 changeover contacts each) • Alternative usage for monitoring of a frequency window • Separate adjustment of response value for over- or underfrequency at 4 ranges each, 1.5 ... 200 Hz or 5 ... 600 Hz • Second response value for prewarning possible • Fast reaction time by measuring duration of cycle of input frequency • Universal measuring input for AC-voltages of 15 ... 280 V as well as 30 ... 550 V • As option with measuring input for inverters • Programmable hysteresis of response value: 2 ... 10 % • Start up time delay programmable via terminals from 0 ... 50 s e.g. continuously • Manual or auto-reset programmable via terminals • Galvanic separation between measuring input, auxiliary voltage and output contacts • MH 9837/508: with galvanic separated analogue output (current/ voltage) and 11 step LED chain for the actual frequency • MH 9837/5_0: with wide input range for auxiliary voltage available (AC/DC 24 ... 60 V or AC/DC 110 ... 230 V) • Closed circuit operation (de-energized on trip) • LED indication for auxiliary voltage, measuring voltage and alarm status • Device available with 2 contacts MK 9837N/5_0: 2 x 1 changeover contact MH 9837/5_0: 2 x 2 changeover contacts or wide auxiliary voltage range • 2 possible compact designs: MK 9837N/5_0: Width 22,5 mm MH 9837/5_0: Width 45 mm | Download datablad |
 | Mains Frequency Monitor MH 9143 • According to IEC / EN 60 255, VDE 0435 Teil 303 • Monitoring of 50 - and 60 Hz-current supply on over- and underfrequency • Monitoring of local generator sets and voltage supplies • For precise frequency measuring with fast response time • High disturbance immunity • Separately adjustable trip points and separate outputs for overand underfrequency (1 or 2 c/o each) • MK 9143N / MH 9143: - Trip points adjustable precisely and reproducible on 10 step rotational switch in the range of ± 0,1 Hz to ± 5 Hz related to 50 or 60 Hz - Nominal frequency 50 or 60 Hz selectable - Fixed hysteresis optimised for trip point - Time delay for over and underfrequency each adjustable from 0 to 20 s - As option one common output for under and overfrequency “Window”-mode (MK 9143N/400 / MH 9143/400) • MH 9143.38/008: with galvanic separated analogue output (current/ voltage) and 11 step LED chain for the actual frequency • MK 9143N/600 / MH 9143/600: - Variable alarm value in the range of 45 to 65 Hz - Hysteresis adjustable for under- and overfrequency separately adjustable 0 …20% - Common output for under and overfrequency “Window”-mode can be selected • Start up delay 0…30 s selectable • Manual or auto reset selectable • Output relay energized or de-energized on trip selectable for overfrequency • Output relay de-energized on trip for underfrequency • Universal frequency measuring input for AC 40 … 550V • Several options for auxiliary supply • As option without aux. supply for voltage range AC 18 … 70 V or 70 … 275V • LED indicators for auxiliary supply, input frequency, over and under frequency alarm • 2 possible contact arrangements MK 9143N and MK 9143N/600: 2 x 1 C/O contacts, width 22,5 mm MH 9143 and MH 9143/600: 2 x 2 C/O contacts, width 45 mm | Download datablad |
 | Phase monitor RL 9877 • According to IEC/EN 60 255-1 • For monitoring of AC 3- and single-phase with 50 /60 Hz • Detection of -- Overvoltage -- Undervoltage -- Voltage range excess -- Phase failure -- Phase asymmetry -- missing neutral e.g. broken neutral wire -- and phase sequence in 3-phase systems • With or without neutral • No separate auxiliary necessary • Output: 1 changeover contact • De-energized on trip • Adjustable hysteresis for reset • Adjustable switching delay • Fast fault detection • Width: -- RL 9877: 35 mm -- RN 9877: 52.5 mm | Download datablad |
 | Phase monitor RN 9877 • According to IEC/EN 60 255-1 • For monitoring of AC 3- and single-phase with 50 /60 Hz • Detection of -- Overvoltage -- Undervoltage -- Voltage range excess -- Phase failure -- Phase asymmetry -- missing neutral e.g. broken neutral wire -- and phase sequence in 3-phase systems • With or without neutral • No separate auxiliary necessary • Output: 1 changeover contact • De-energized on trip • Adjustable hysteresis for reset • Adjustable switching delay • Fast fault detection • Width: -- RL 9877: 35 mm -- RN 9877: 52.5 mm | Download datablad |
 | Phase monitor with thermistor motor protection IL 9086 • According to IEC/EN 60 255, DIN VDE 0660 part 302 (pr EN 60 947-8) and part 303 • Monitoring of - Undervoltage 3 phase - Phase failure - Phase sequence - Loss of neutral - Phase asymmetry - Overtemperature - Broken wire in thermistor circuit - Short circuit in thermistor circuit • Without auxiliary supply • 1 sensing input for 1 ... 6 thermistors • LED indication - Supply voltage - Measuring voltage - Temperature • As option with manual reset on temperature fault • 2 x 1 changeover contact • Depth 59 mm, with terminals at the bottom for installation systems and industrial distribution systems according to DIN 43 880 | Download datablad |
 | Phase monitor with thermistor motor protection SL 9086 • According to IEC/EN 60 255, DIN VDE 0660 part 302 (pr EN 60 947-8) and part 303 • Monitoring of - Undervoltage 3 phase - Phase failure - Phase sequence - Loss of neutral - Phase asymmetry - Overtemperature - Broken wire in thermistor circuit - Short circuit in thermistor circuit • Without auxiliary supply • 1 sensing input for 1 ... 6 thermistors • LED indication - Supply voltage - Measuring voltage - Temperature • As option with manual reset on temperature fault • 2 x 1 changeover contact • Depth 98 mm, with terminals at the top for cabinets with mounting plate and cable duct • Width 35 mm | Download datablad |
 | Phase monitor IL 9087 • According to IEC/EN 60 255, VDE 0435, DIN VDE 0660 part 302 (pr EN 60 947-8) and part 303 • Monitoring of phase failure - Undervoltage 3-phase 3 or 4 wire - Phase failure - Phase sequence - Loss of neutral - Phase asymmetry • Without auxiliary supply • De-energized on trip • LED indication - Supply voltage - Phase failure • 1 or 2 changeover contacts • Depth 59 mm, with terminals at the bottom for installation systems and industrial distribution systems according to DIN 43 880 • Width 35 mm | Download datablad |
 | Phase monitor SL 9087 • According to IEC/EN 60 255, VDE 0435, DIN VDE 0660 part 302 (pr EN 60 947-8) and part 303 • Monitoring of phase failure - Undervoltage 3-phase 3 or 4 wire - Phase failure - Phase sequence - Loss of neutral - Phase asymmetry • Without auxiliary supply • De-energized on trip • LED indication - Supply voltage - Phase failure • 1 or 2 changeover contacts • Depth 98 mm, with terminals at the top for cabinets with mounting plate and cable duct • Width 35 mm | Download datablad |
 | Phase monitor BD 9080 • According to IEC/EN 60255-1, IEC/EN 60255-26, DIN VDE 0435-303 • Monitoring of - Under- and overvoltage - Asymmetry - Phase failure - Phase sequence • Adjustable time delay between 0.1 ... 5 s • One LED in each case for: - Auxiliary voltage A1/A2 -Overvoltage Umax. - Undervoltage Umin. - Asymmetry / Phase sequence / Power failure - Contact position • Closed circuit operation • 2 changeover contacts • As option available with open circuit operation • Width 45 mm | Download datablad |
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Målerelæer for komponent beskyttelse
DOLD offers you a very wide portfolio of relays for network monitoring. The devices monitor electrical variables such as voltage, phase outage/asymmetry, neutral conductor usage, frequency as well as insulation errors. Typical uses are device and system protections, the supply of safety lighting devices, et cetera. They distinguish themselves with benefits such as space-saving thanks to their compact size, simple functionality, flexible use, high efficiency and higher operating security as well as fire and accident safety.
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