Measuring and monitoring relays DOLD

• According to IEC/EN 60 255, DIN VDE 0435-303
• IP 9271, SP 9271, SP 9271CT: 3-phase
IK 9271, IL 9271, SK 9271, SL 9271, SL 9271CT: single phase
• Measuring ranges from 0.1 ... 100 A
• IK 9271, SK 9271:
with 4 ranges settable by rotational switch, 1 changeover contact
• IL 9271, SL 9271:
with 5 ranges settable by rotational switch, 1 changeover contact
with 4 ranges programmable by bridges, 2 changeover contacts
• IP 9271, SP 9271: with 1 range, 2 changeover contacts
• Settable response value
• Fixed hysteresis
• Settable time delay
• De-energized on trip
• Optionally energized on trip
• LED indicators
• With auxiliary voltage
• Auxiliary supply and measuring input galvanic separated
• Devices available in 2 enclosure versions:
- I-model, e.g. IK _ _ _ _, depth 61 mm
with terminals at the bottom for installations systems
and industrial distribution systems according to DIN 43 880
- S-model, e.g. SK _ _ _ _, depth 100 mm
with terminals at the top for cabinets with mounting plate
and cable duct
• Width IK 9271, SK 9271: 17.5 mm
IL 9271, SL 9271, SL 9271CT: 35 mm
IP 9271, SP 9271, SP 9271CT: 70 mm

• According to IEC/EN 60 255, DIN VDE 0435-303
• IP 9271, SP 9271, SP 9271CT: 3-phase
IK 9271, IL 9271, SK 9271, SL 9271, SL 9271CT: single phase
• Measuring ranges from 0.1 ... 100 A
• IK 9271, SK 9271:
with 4 ranges settable by rotational switch, 1 changeover contact
• IL 9271, SL 9271:
with 5 ranges settable by rotational switch, 1 changeover contact
with 4 ranges programmable by bridges, 2 changeover contacts
• IP 9271, SP 9271: with 1 range, 2 changeover contacts
• Settable response value
• Fixed hysteresis
• Settable time delay
• De-energized on trip
• Optionally energized on trip
• LED indicators
• With auxiliary voltage
• Auxiliary supply and measuring input galvanic separated
• Devices available in 2 enclosure versions:
- I-model, e.g. IK _ _ _ _, depth 61 mm
with terminals at the bottom for installations systems
and industrial distribution systems according to DIN 43 880
- S-model, e.g. SK _ _ _ _, depth 100 mm
with terminals at the top for cabinets with mounting plate
and cable duct
• Width IK 9271, SK 9271: 17.5 mm
IL 9271, SL 9271, SL 9271CT: 35 mm
IP 9271, SP 9271, SP 9271CT: 70 mm

• According to IEC/EN 60 255, DIN VDE 0435-303
• IP 9271, SP 9271, SP 9271CT: 3-phase
IK 9271, IL 9271, SK 9271, SL 9271, SL 9271CT: single phase
• Measuring ranges from 0.1 ... 100 A
• IK 9271, SK 9271:
with 4 ranges settable by rotational switch, 1 changeover contact
• IL 9271, SL 9271:
with 5 ranges settable by rotational switch, 1 changeover contact
with 4 ranges programmable by bridges, 2 changeover contacts
• IP 9271, SP 9271: with 1 range, 2 changeover contacts
• Settable response value
• Fixed hysteresis
• Settable time delay
• De-energized on trip
• Optionally energized on trip
• LED indicators
• With auxiliary voltage
• Auxiliary supply and measuring input galvanic separated
• Devices available in 2 enclosure versions:
- I-model, e.g. IK _ _ _ _, depth 61 mm
with terminals at the bottom for installations systems
and industrial distribution systems according to DIN 43 880
- S-model, e.g. SK _ _ _ _, depth 100 mm
with terminals at the top for cabinets with mounting plate
and cable duct
• Width IK 9271, SK 9271: 17.5 mm
IL 9271, SL 9271, SL 9271CT: 35 mm
IP 9271, SP 9271, SP 9271CT: 70 mm

• According to IEC/EN 60 255-1
• IP 9271, SP 9271, SP 9271CT: 3-phase
IK 9271, IL 9271, SK 9271, SL 9271, SL 9271CT: single phase
• Measuring ranges from 0.1 ... 100 A
• IK 9271, SK 9271:
with 4 ranges settable by rotational switch, 1 changeover contact
• IL 9271, SL 9271:
with 5 ranges settable by rotational switch, 1 changeover contact
with 4 ranges programmable by bridges, 2 changeover contacts
• IP 9271, SP 9271: with 1 range, 2 changeover contacts
• Settable response value
• Fixed hysteresis
• Settable time delay
• De-energized on trip
• Optionally energized on trip
• LED indicators
• With auxiliary voltage
• Auxiliary supply and measuring input galvanic separated
• Devices available in 2 enclosure versions:
- I-model, e.g. IK _ _ _ _, depth 61 mm
with terminals at the bottom for installations systems
and industrial distribution systems according to DIN 43 880
- S-model, e.g. SK _ _ _ _, depth 100 mm
with terminals at the top for cabinets with mounting plate
and cable duct
• Width IK 9271, SK 9271: 17.5 mm
IL 9271, SL 9271, SL 9271CT: 35 mm
IP 9271, SP 9271, SP 9271CT: 70 mm

• According to IEC/EN 60 255-1
• IP 9271, SP 9271, SP 9271CT: 3-phase
IK 9271, IL 9271, SK 9271, SL 9271, SL 9271CT: single phase
• Measuring ranges from 0.1 ... 100 A
• IK 9271, SK 9271:
with 4 ranges settable by rotational switch, 1 changeover contact
• IL 9271, SL 9271:
with 5 ranges settable by rotational switch, 1 changeover contact
with 4 ranges programmable by bridges, 2 changeover contacts
• IP 9271, SP 9271: with 1 range, 2 changeover contacts
• Settable response value
• Fixed hysteresis
• Settable time delay
• De-energized on trip
• Optionally energized on trip
• LED indicators
• With auxiliary voltage
• Auxiliary supply and measuring input galvanic separated
• Devices available in 2 enclosure versions:
- I-model, e.g. IK _ _ _ _, depth 61 mm
with terminals at the bottom for installations systems
and industrial distribution systems according to DIN 43 880
- S-model, e.g. SK _ _ _ _, depth 100 mm
with terminals at the top for cabinets with mounting plate
and cable duct
• Width IK 9271, SK 9271: 17.5 mm
IL 9271, SL 9271, SL 9271CT: 35 mm
IP 9271, SP 9271, SP 9271CT: 70 mm

• According to IEC/EN 60 255
• Single phase
• Measuring ranges from 0.05 ... 10 A
• Fixed hysteresis approx. 4 %
• Adjustable switching delay
• Closed circuit operation
• Optionally open circuit operation
• Automatic reset
• Optionally manual reset, reset button on the front
• LED indication for auxiliary voltage
• 1 changeover contact
• Devices available in 2 enclosure versions:
IK 9272: depth 59 mm, with terminals at the bottom for
installation systems and industrial distribution
systems according to DIN 43 880
SK 9272: 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
• IP 9271, SP 9271, SP 9271CT: 3-phase
IK 9271, IL 9271, SK 9271, SL 9271, SL 9271CT: single phase
• Measuring ranges from 0.1 ... 100 A
• IK 9271, SK 9271:
with 4 ranges settable by rotational switch, 1 changeover contact
• IL 9271, SL 9271:
with 5 ranges settable by rotational switch, 1 changeover contact
with 4 ranges programmable by bridges, 2 changeover contacts
• IP 9271, SP 9271: with 1 range, 2 changeover contacts
• Settable response value
• Fixed hysteresis
• Settable time delay
• De-energized on trip
• Optionally energized on trip
• LED indicators
• With auxiliary voltage
• Auxiliary supply and measuring input galvanic separated
• Devices available in 2 enclosure versions:
- I-model, e.g. IK _ _ _ _, depth 61 mm
with terminals at the bottom for installations systems
and industrial distribution systems according to DIN 43 880
- S-model, e.g. SK _ _ _ _, depth 100 mm
with terminals at the top for cabinets with mounting plate
and cable duct
• Width IK 9271, SK 9271: 17.5 mm
IL 9271, SL 9271, SL 9271CT: 35 mm
IP 9271, SP 9271, SP 9271CT: 70 mm

• According to IEC/EN 60 255, DIN VDE 0435-303
• 2 independent relays in once enclosure
• 2 measuring ranges from 0.5 to 5 A
• Adjustable response values
• Fixed hysteresis
• Adjustable switching delay
• Closed circuit operation
• LED indicators
• with auyiliary voltage
• galvanic separation between Auxiliary Circuit and Measuring Circuit
• 2 models available:
IL 5201: 63 mm deep with terminals near to the bottom to be
mounted in consumer units or industrial distribution
systems according to DIN 43 880
SL 5201: 100 mm deep with terminals near to the top to be mounted
in cabinets with mounting plate and cable ducts
• Width: 35 mm

• According to IEC/EN 60 255-1
• IP 9271, SP 9271, SP 9271CT: 3-phase
IK 9271, IL 9271, SK 9271, SL 9271, SL 9271CT: single phase
• Measuring ranges from 0.1 ... 100 A
• IK 9271, SK 9271:
with 4 ranges settable by rotational switch, 1 changeover contact
• IL 9271, SL 9271:
with 5 ranges settable by rotational switch, 1 changeover contact
with 4 ranges programmable by bridges, 2 changeover contacts
• IP 9271, SP 9271: with 1 range, 2 changeover contacts
• Settable response value
• Fixed hysteresis
• Settable time delay
• De-energized on trip
• Optionally energized on trip
• LED indicators
• With auxiliary voltage
• Auxiliary supply and measuring input galvanic separated
• Devices available in 2 enclosure versions:
- I-model, e.g. IK _ _ _ _, depth 61 mm
with terminals at the bottom for installations systems
and industrial distribution systems according to DIN 43 880
- S-model, e.g. SK _ _ _ _, depth 100 mm
with terminals at the top for cabinets with mounting plate
and cable duct
• Width IK 9271, SK 9271: 17.5 mm
IL 9271, SL 9271, SL 9271CT: 35 mm
IP 9271, SP 9271, SP 9271CT: 70 mm

• According to IEC/EN 60 255, DIN VDE 0435-303
• 2 independent relays in once enclosure
• 2 measuring ranges from 0.5 to 5 A
• Adjustable response values
• Fixed hysteresis
• Adjustable switching delay
• Closed circuit operation
• LED indicators
• with auyiliary voltage
• galvanic separation between Auxiliary Circuit and Measuring Circuit
• 2 models available:
IL 5201: 63 mm deep with terminals near to the bottom to be
mounted in consumer units or industrial distribution
systems according to DIN 43 880
SL 5201: 100 mm deep with terminals near to the top to be mounted
in cabinets with mounting plate and cable ducts
• Width: 35 mm

• According to IEC/EN 60 255-1
• IP 9270, SP 9270CT: 3-phase
IK 9270, SK 9270, IL 9270, SL 9270CT: single phase
• Measuring ranges from 0.1 ... 100 A
• Settable response value
• Fixed hysteresis
• Settable time delay
• De-energized on trip
• As option energized on trip
• LED indicators
• With auxiliary voltage
• Auxiliary supply and measuring input galvanic separated
• Devices available in 2 enclosure versions:
- I-model, e.g. IK _ _ _ _, depth 61 mm
with terminals at the bottom for installation systems and
industrial distribution systems according to DIN 43 880
- S-model, e.g. SK _ _ _ _, depth 100 mm
with terminals at the top for cabinets with mounting plate
and cable duct
• Width IK 9270, SK 9270: 17.5 mm
IL 9270, SL 9270CT: 35 mm
IP 9270, SP 9270CT: 70 mm

• According to IEC/EN 60 255-1
• IP 9270, SP 9270CT: 3-phase
IK 9270, SK 9270, IL 9270, SL 9270CT: single phase
• Measuring ranges from 0.1 ... 100 A
• Settable response value
• Fixed hysteresis
• Settable time delay
• De-energized on trip
• As option energized on trip
• LED indicators
• With auxiliary voltage
• Auxiliary supply and measuring input galvanic separated
• Devices available in 2 enclosure versions:
-- I-model, e.g. IK _ _ _ _, depth 61 mm
with terminals at the bottom for installation systems and
industrial distribution systems according to DIN 43 880
-- S-model, e.g. SK _ _ _ _, depth 100 mm
with terminals at the top for cabinets with mounting plate
and cable duct
• Width IK 9270, SK 9270: 17.5 mm
IL 9270, SL 9270CT: 35 mm
IP 9270, SP 9270CT: 70 mm

• According to IEC/EN 60 255-1
• Monitoring of:
-- overtemperature
-- broken wire detection in sensor circuit
• 1 input for 1 to 6 PTC-resistors
• With manual reset variant /100
• Optionally with button for reset and test function
• Remote reset on A1/A2 (NC contact) or
X1/X2 (NO contact)
• Closed circuit operation
• LED indicator for
-- auxiliary supply
-- state of contact
• 2 changover contacts
• Devices available in 2 enclosure versions:
IL 9163: depth 58 mm, with terminals at the bottom for
installation systems and industrial distribution
systems according to DIN 43 880
SL 9163: 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, DIN VDE 0435-303
• Detection of standstill of rotating machine parts and cyclic pulses
• Detection of blocking or missing pulses
• Monitoring time adjustable between 0.1 ... 20 s (others on request)
• Energized or de-energized on trip
• For input frequency up to 5 kHz( 300000 ipm)
• Universal input, suitable for a variety of sensors
(PNP,NPN,2-wire, contact, voltage)
• Input also suitable for SKF sensor bearings
• As option for Namur sensors
• On request with manual reset
• IK 9144 and SK 9144: compact version for DC 24V auxiliary supply
• IL 9144 and SL 9144: for auxiliary supply up to AC 400V with
galvanic separation to sensor input
• LED indicators for auxiliary supply, sensor pulses and contact
position
• 1 changeover contact (2 changeover on request)
• Devices available in 2 enclosure versions:
IK/IL 9144: depth 59 mm, with terminals at the bottom for
installation systems and industrial distribution
systems according to DIN 43 880
SK/SL 9144: depth 98 mm, with terminals at the top for
cabinets with mounting plate and cable duct
• IK 9144, SK 9144: width 17.5 mm
• IL 9144, SL 9144: width 35 mm

• According to IEC/EN 60 255
• Single phase
• Measuring ranges from 0.05 ... 10 A
• Fixed hysteresis approx. 4 %
• Adjustable switching delay
• Closed circuit operation
• Optionally open circuit operation
• Automatic reset
• Optionally manual reset, reset button on the front
• LED indication for auxiliary voltage
• 1 changeover contact
• Devices available in 2 enclosure versions:
IK 9272: depth 59 mm, with terminals at the bottom for
installation systems and industrial distribution
systems according to DIN 43 880
SK 9272: depth 98 mm, with terminals at the top for cabinets
with mounting plate and cable duct
• Width 17.5 mm

• According to IEC/EN 60 255-1, VDE 0435 part 303
• Detection of high or low-rpm / stand still (adjustable function)
• Large setting range 1 ... 120.000 IPM or
0.15 ... 20.000 Hz (10 ranges each)
• As option with input for NAMUR-sensors with sensor and
wire protection against interruption and short circuit
• Adjustable hysteresis 0.5 ... 50 %
• Adjustable start up time delay 0 ... 50 s, control with external contact
• Adjustable monitoring time for missing input signal at function
overfrequency; additional using as standstill level
• Programmable via termminals:
- Alarm delay of 0 ... 100 s
- with manual reset or auto reset
• LED-indication for auxiliary voltage, measuring input and output relay;
additional LED for indication of wire- / sensor failure at NAMUR-input
• Auxiliary voltages AC 230 V and DC 24 V in one unit
• 2 changeover contacts, closed circuit operation
• Open circuit operation on request
• As option with analogue output, proportionally to speed
• Device available with 2 response values and seperately controlled
output relays for under- and overfrequency see MK 9055N/5_ _
• MH 9055 with wide input range for auxiliary voltage
(AC/DC 24 ... 60 V or AC/DC 110 ... 230 V)
• 2 possible compact designs
MK 9055N: Width 22,5 mm
MH 9055: Width 45 mm

• According to IEC/EN 60 255
• Single phase
• Measuring ranges from 0.05 ... 10 A
• Setting value adjustable from 0.1 ... 1 IN
• Fixed hysteresis approx. 4 %
• Settable switching delay
• Closed circuit operation
• Optionally open circuit operation
• Automatic reset
• Optionally manual reset, reset button on the front
• LED indication for auxiliary voltage and contact position
• 1 changeover contact
• Devices available in 2 enclosure versions:
IK 9273: depth 59 mm, with terminals at the bottom for
installation systems and industrial distribution
systems according to DIN 43 880
SK 9273: 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 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, 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