Measuring relays for main monitoring

Measuring relays for main monitoring

Protect individual system parts against being damaged

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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Catalogue, Monitoring technique, File: pdf, File size 9 MB

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1- / 3-phase

Operate delay

Auxiliary voltage required

Enclosure design

Width

Output contacts

Approvals

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...

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,...

Phase Sequence Indicator IK 9178

• According to IEC/EN 60 255-1
• 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:...

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...

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,...

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...

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
•...

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...

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,...

Phase Sequence Indicator SK 9178

• According to IEC/EN 60 255-1
• 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:...

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...

Asymmetry Relay MK 9040N

• According to IEC/EN 60255-1
• 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...

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...

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

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
•...

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
•...

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...

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
•...

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

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
•...

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
•...

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...

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
•...

Unbalance relay AI 941N

• According to IEC/EN 60 255-1
• Detection of wrong phase sequence
• 1 or 2 changeover contacts
• Width 45 mm

Asymmetry Relay BA 9040

• According to IEC/EN 60255-1
• 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...

Phase-sequence relay BA 9041

• According to IEC/EN 60 255-1
• Detection of wrong phase sequence
• 1 or 2 changeover contacts
• Width 45 mm

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...

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
•...

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
•...

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
•...

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
•...

Asymmetry Relay AK 9840

• According to IEC/EN 60255-1
• For nominal voltages from 3 AC 110 up to 690 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...

Frequency Relay IK 9143

• According to IEC/EN 60 255-1
• Monitoring of overfrequency and underfrequency (selectable)
in A.C. power systems
• 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...

Frequency Relay SK 9143

• According to IEC/EN 60 255-1
• Monitoring of overfrequency and underfrequency (selectable)
in A.C. power systems
• 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...

Mains Frequency Monitor MK 9143N

• Conformes à IEC / EN 60 255, DIN VDE 0435-303
• Surveillance en sous et surfréquence de réseaux 50/60Hz
• Surveillance de groupes et générateurs électriques
• Mesure de fréquence précise et rapide
• Entrée de mesure fortement protégée
• 2 seuils...

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...

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...

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...

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...

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

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

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

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...

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...

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...

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...

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...

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
•...

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...

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...

Phase monitor BD 9080

• According to IEC/EN 60255-1
• 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...

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
•...

More information

Relays for network monitoring are used for device and system protection, for the supply of safety lighting devices, et cetera.

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