Measuring and monitoring relays DOLD

• 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

• According to IEC/EN 60 25-1
• IP 9277, SP 9277, SP 9277CT: 3-phase
IL 9277, SL 9277, SL 9277CT: singele phase
• Detects over- and undercurrent
• Measuring ranges from 0.1 ... 15 A
• With built in current transformer for 0.5 ... 100 A
• IL 9277, SL 9277 with 4 programmable ranges
• Settable 0.1 ... 1 IN
• Separate setting for over- and undercurrent
• Fixed hysteresis approx. 4 %
• Settable time delay
• IP 9277, SP 9277 with separate settable time delay for
over- and undercurrent
• De-energized on trip
• LED indicators for over-, under- and normal current
• Auxiliary supply and measuring input galvanic separated
• IL 9277, SL 9277 with one output relay for over- and
undercurrent
• IP 9277, SP 9277 with separate output relays for over- and
undercurrent
• Optionally energized on trip
• Devices available in 2 enclosure versions:
-- I-model, e.g. IL _ _ _ _, depth 61 mm
with terminals at the bottom for installations systems
and industrial distribution systems according to DIN 43 880
-- S-model, e.g. SL _ _ _ _, depth 100 mm
with terminals at the top for cabinets with mounting plate
and cable duct
• DIN rail or screw mounting
• Width IL 9277, SL 9277, SL 9277CT: 35 mm
IP 9277, SP 9277, SP 9277CT: 70 mm

• According to IEC/EN 60 255-1, IEC/EN 60 947-1
• to: monitor DC and AC
• BA 9053 with measuring ranges from 2 mA to 25 A
• BA 9053 optionally with 3 measuring ranges 0.1 up to 25 A
• MK 9053N with measuring ranges from 2 mA up to 10 A
• High overload possible
• Input frequency up to 5 kHz
• Galvanic separation between auxiliary circuit - measuring ciruit
• Auxiliary supply AC/DC; BA 9053 with AC
• BA 9053 optionally with start-up delay (MK = standard)
• with time delay, up to max. 100 sec
• BA 9053 optionally with safe separation to IEC/EN 61140
• MK 9053N optionally with remote potentiometer
• As option with manual reset
• LED indicators for operation and contact position
• MK 9053N as option with pluggable terminal blocks for easy exchange
of devices
- with screw terminals
- or with cage clamp terminals
• Width BA 9053: 45 mm
Width MK 9053N: 22.5 mm

• According to IEC/EN 60 25-1
• IP 9277, SP 9277, SP 9277CT: 3-phase
IL 9277, SL 9277, SL 9277CT: singele phase
• Detects over- and undercurrent
• Measuring ranges from 0.1 ... 15 A
• With built in current transformer for 0.5 ... 100 A
• IL 9277, SL 9277 with 4 programmable ranges
• Settable 0.1 ... 1 IN
• Separate setting for over- and undercurrent
• Fixed hysteresis approx. 4 %
• Settable time delay
• IP 9277, SP 9277 with separate settable time delay for
over- and undercurrent
• De-energized on trip
• LED indicators for over-, under- and normal current
• Auxiliary supply and measuring input galvanic separated
• IL 9277, SL 9277 with one output relay for over- and
undercurrent
• IP 9277, SP 9277 with separate output relays for over- and
undercurrent
• Optionally energized on trip
• Devices available in 2 enclosure versions:
-- I-model, e.g. IL _ _ _ _, depth 61 mm
with terminals at the bottom for installations systems
and industrial distribution systems according to DIN 43 880
-- S-model, e.g. SL _ _ _ _, depth 100 mm
with terminals at the top for cabinets with mounting plate
and cable duct
• DIN rail or screw mounting
• Width IL 9277, SL 9277, SL 9277CT: 35 mm
IP 9277, SP 9277, SP 9277CT: 70 mm

• 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

• 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

• 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

• 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

• 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 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

• 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
• Identification of overvoltage, undervoltage and phase failure
• With asymmetry identification as an option
• Mains fault diagnostics with a number of LEDs
• Setting values for overvoltage and undervoltage can be set
separately
• Large Setting Ranges 0.9 ... 1.3 UN and 0.7 ... 1.1 UN
• Time delay variable between 0.1 ... 20 s
• Closed circuit operation
• No auxiliary voltage
• Independant of phase sequence
• As option with phase sequence detection
• Single-phase connection possible
• Optionally for 3P3W Systems
• 2 changeover contacts, at IP/SP 9077 2 x 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 9077, SL 9077: width 35 mm

• According to IEC/EN 60 255, DIN VDE 0435-303
• Identification of overvoltage, undervoltage and phase failure
• With asymmetry identification as an option
• Mains fault diagnostics with a number of LEDs
• Setting values for overvoltage and undervoltage can be set
separately
• Large Setting Ranges 0.9 ... 1.3 UN and 0.7 ... 1.1 UN
• Time delay variable between 0.1 ... 20 s
• Closed circuit operation
• No auxiliary voltage
• Independant of phase sequence
• As option with phase sequence detection
• Single-phase connection possible
• Optionally for 3P3W Systems
• 2 changeover contacts, at IP/SP 9077 2 x 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
• IP 9077, SP 9077: width 70 mm

• 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