Monitoring devices DOLD

• 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

• 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

• According to IEC/EN 60 255, DIN VDE 0435-303
• Monitoring of undervoltage
• Without auxiliary supply
• Optionally fixed or settable response value
• N.C. circuit operation
• Optionally with off-delay t1
• Optionally with on-delay t2
• LED indicator for state of output relay
• 1 changeover contact
• Devices available in 2 enclosure versions:
IK 9173: depth 59 mm, with terminals at the bottom for
installation systems and industrial distribution
systems according to DIN 43 880
SK 9173: 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 undervoltage in 3-phase system
• Also for single phase
• Without auxiliary supply
• Optionally for 3p3w systems
• LED indicator for state of output relay
• Independent of phase sequence
• 1 or 2 changeover contacts
• Optionally fixed or settable response value
• As option with phase sequence detection
• Optionally with or without N
• Optionally with off-delay t1
• Opionally with on delay t2
• 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
• Width:
IK 9171, SK 9171: 17.5 mm
IL 9171, SL 9171: 35 mm

• According to IEC/EN 60 255, DIN VDE 0435-303
• Monitoring of undervoltage in 3-phase system
• Also for single phase
• Without auxiliary supply
• Optionally for 3p3w systems
• LED indicator for state of output relay
• Independent of phase sequence
• 1 or 2 changeover contacts
• Optionally fixed or settable response value
• As option with phase sequence detection
• Optionally with or without N
• Optionally with off-delay t1
• Opionally with on delay t2
• 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
• Width:
IK 9171, SK 9171: 17.5 mm
IL 9171, SL 9171: 35 mm

• According to IEC/EN 60 255, DIN VDE 0435-303
• Monitoring of undervoltage in 3-phase system
• Also for single phase
• Without auxiliary supply
• Optionally for 3p3w systems
• LED indicator for state of output relay
• Independent of phase sequence
• 1 or 2 changeover contacts
• Optionally fixed or settable response value
• As option with phase sequence detection
• Optionally with or without N
• Optionally with off-delay t1
• Opionally with on delay t2
• 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
• Width:
IK 9171, SK 9171: 17.5 mm
IL 9171, SL 9171: 35 mm

• According to IEC/EN 60 255, DIN VDE 0435-303
• Monitoring of undervoltage in 3-phase system
• Also for single phase
• Without auxiliary supply
• Optionally for 3p3w systems
• LED indicator for state of output relay
• Independent of phase sequence
• 1 or 2 changeover contacts
• Optionally fixed or settable response value
• As option with phase sequence detection
• Optionally with or without N
• Optionally with off-delay t1
• Opionally with on delay t2
• 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
• Width:
IK 9171, SK 9171: 17.5 mm
IL 9171, SL 9171: 35 mm

• According to IEC/EN 60 255, DIN VDE 0435-303
• Fast detection of undervoltage and phase failure in AC voltage
systems
• Detects voltage drops (reaction time ≤ 20 ms)
• Response value 0.8 or 0.7 UN selectable by wire link
• Without auxiliary supply
• De-energized on trip
• LED indicator for contact position
• Adjustable operate delay after return of voltage
• As option adjustable fleeting on make pulse after return of voltage
(variant BC 9190N.11/001)
• 1 changeover contact
• Wire connection: also 2 x 1.5 mm2 stranded ferruled (isolated),
DIN 46 228-1/-2/-3/-4 or
2 x 2.5 mm2 stranded ferruled DIN 46 228-1/-2/-3/-4
• Width 22.5 mm

• According to EC/EN 60255-1, IEC/EN 60255-26, VDE 0435 part 303
• 3-phase
• For nominal voltage of 3 AC 100 / 57 to 690 / 400 V
• Measures arithmetic mean value
• Adjustable operate and release value
• For 3p3w or 3p4w systems
• BA 9043 optionally with adjustable time delay
• Closed circuit operation
• LED indicator for operation and state of contact
• Insensitive to harmonics
• Frequency up to 400 Hz
• Width 45 mm

• According to EC/EN 60255-1, IEC/EN 60255-26, VDE 0435 part 303
• 3-phase
• For nominal voltage of 3 AC 100 / 57 to 690 / 400 V
• Measures arithmetic mean value
• Adjustable operate and release value
• For 3p3w or 3p4w systems
• BA 9043 optionally with adjustable time delay
• Closed circuit operation
• LED indicator for operation and state of contact
• Insensitive to harmonics
• Frequency up to 400 Hz
• Width 45 mm

• According to IEC/EN 60255-1
• For installations according to DIN VDE 0100-718 and DIN VDE 0108-100
(replacement of DIN VDE 0108 )
• Detection of undervoltage in 3-phase systems
• Without separately auxiliary voltage
(internal supply from all 3 phases)
• LED indication for für operation voltage and contact position
• De-energised on trip
• RK 9871.71: 1 changeover contact
RK 9871.72: 2 changeover contacts
• With fixed time delay of 0.5s for fault indication
• With fixed time delay of 1min for reset
• With fixed response value at AC 195.5V
• As option with test-button for function control
• Width 17,5 mm

• 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
• 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