Measuring relays for voltage monitoring DOLD

• According to IEC/EN 60 255, DIN VDE 0435-303
• Monitoring of overvoltage
• Without auxiliary supply
• Settable response value
• De-energized on trip
• LED indicator for state of output relay
• 1 changeover contact
• As option energized on trip
• As option with delay t1 on trip
• As option with delay t2 on reset
• Devices available in 2 enclosure versions:
IK 9171: depth 59 mm, with terminals at the bottom for
installation systems and industrial distribution
systems according to DIN 43 880
SK 9171: depth 98 mm, with terminals at the top for cabinets
with mounting plate and cable duct
• Width 17.5 mm

• According to IEC/EN 60 255, DIN VDE 0435-303
• Monitoring of overvoltage in 3-phase systems
• Also for single phase
• Without auxiliary supply
• Settable response value
• N.C. circuit operation (optionally N.O. circuit operation)
• Optionally with or without N
• Optionally with delay t1 on trip
• Optionally with delay t2 on reset
• LED indicator for state of output relay
• Indepenent of phase sequence
• 1 changeover contact
• Devices available in 2 enclosure versions:
IK 9170: depth 59 mm, with terminals at the bottom for
installation systems and industrial distribution
systems according to DIN 43 880
SK 9170: depth 98 mm, with terminals at the top for cabinets
with mounting plate and cable duct
• Width 17.5 mm

• According to IEC/EN 60 255, DIN VDE 0435-303
• Monitoring of overvoltage in 3-phase systems
• Also for single phase
• Without auxiliary supply
• Settable response value
• N.C. circuit operation (optionally N.O. circuit operation)
• Optionally with or without N
• Optionally with delay t1 on trip
• Optionally with delay t2 on reset
• LED indicator for state of output relay
• Indepenent of phase sequence
• 1 changeover contact
• Devices available in 2 enclosure versions:
IK 9170: depth 59 mm, with terminals at the bottom for
installation systems and industrial distribution
systems according to DIN 43 880
SK 9170: depth 98 mm, with terminals at the top for cabinets
with mounting plate and cable duct
• Width 17.5 mm

• According to IEC/EN 60 255, DIN VDE 0435-303
• Identification of
- undervoltage
- phase failure
- asymmetry also with reverse voltage
- missing neutral in the system
- broken neutral on IL/SL 9071
- neutral exchanged against phase
• Single phase connection possible
• According to DIN VDE 0100-710
(for rooms used for medical purposes) as an option
• Fixed setting value (variable as an option)
• Closed circuit operation principle
• LED indicator
• With safe disconnection according to IEC/EN 61 140,
IEC/EN 60 947-1 between the Measuring Circuit and the contacts
• Independant of phase sequence
• 2 changeover contacts
• Devices available in 2 enclosure version:
IL 9071: depth 61 mm with terminals at the bottom for
installations systems and industrial distribution
systems according to DIN 43 880
SL 9071: depth 98 mm with terminals at the top for
cabinets with mounting plate and cable duct
• Width 35 mm

• According to IEC/EN 60 255-1
• For monitoring direct current voltage supply systems
to detect residual ripple
• For DC 48 V
• With adjustable residual ripple
• LED indication for operation and contact position
• Time delay 10 s
• 1 changeover contact
• Width: 22,5 mm

• According to IEC/EN 60 255, DIN VDE 0435-303
• For monitoring direct current voltage supply systems to detect
undervoltage, overvoltage and residual ripple
• For DC 24 V
• IK 9046 with adjustable residual ripple
• Width 17.5 mm

• According to IEC/EN 60 255, DIN VDE 0435-303
• For monitoring direct current voltage supply systems to detect
undervoltage, overvoltage and residual ripple
• For DC 24 V
• IK 9046 with adjustable residual ripple
• Width 17.5 mm

• According to IEC/EN 60 255, DIN VDE 0435-303
• Identification of
- undervoltage
- phase failure
- asymmetry also with reverse voltage
- missing neutral in the system
- broken neutral on IL/SL 9071
- neutral exchanged against phase
• Single phase connection possible
• According to DIN VDE 0100-710
(for rooms used for medical purposes) as an option
• Fixed setting value (variable as an option)
• Closed circuit operation principle
• LED indicator
• With safe disconnection according to IEC/EN 61 140,
IEC/EN 60 947-1 between the Measuring Circuit and the contacts
• Independant of phase sequence
• 2 changeover contacts
• Devices available in 2 enclosure version:
IL 9071: depth 61 mm with terminals at the bottom for
installations systems and industrial distribution
systems according to DIN 43 880
SL 9071: depth 98 mm with terminals at the top for
cabinets with mounting plate and cable duct
• Width 35 mm

• According to IEC 255, EN 30 255, VDE 0435 part 303
• Single phase
• Measuring ranges from 24 to 660 V
• Response and release value adjustable independent of each other
• Under- and overvoltage detection
• Without auxiliary supply
• Large setting range
• With time delay
• Closed circuit operation
• Insensitive to harmonics
• LED indicators for operation and state of contacts
• Width 45 mm

• According to IEC/EN 60255-1, IEC/EN 60255-26, VDE 0435 part 303
• Single-phase
• Measuring ranges from 24 to 400
• Settable response and release value
• Without auxiliary supply
• optionally available with adjustable time delay
• with LED indicators for operation and state of contacts
• 2 changeover contacts
• Width 45 mm