Monitoring devices DOLD

• According to IEC/EN 60 255, VDE 0435
• 2 PT 100 inputs with separate outputs or alternatively
common output
• Optionally 1 PT 100 input with 2 separate outputs for
2 different response values
• Separate adjustable response and release values for each input
• Optionally with fixed response and release values
• Broken wire detection in sensor circuit
• Closed circuit operation
• 2 wire connection
• Width 45 mm

• According to IEC/EN 60255-1, IEC/EN 60255-26
• For standstill monitoring of 3- and 1-phase asynchronous motors
• Line breakage detection in the measurement circuit
• Forcibly guided output contacts:
2 NO, 2 NC contacts for 250 V AC
• LED indicators for motor standstill, line breakage, and operating
voltage
• 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
• Width 45 mm

• According to IEC/EN 60 255, DIN VDE 0435-303
• Measuring range 0.175 ... 1 A
• Fixed switching point setting
• High maximum load
• As option with semiconductor output
• Width
IK 8839: 17.5 mm
IL 8839: 35 mm

• According to IEC/EN 60 255, DIN VDE 0435-303
• Measuring range 0.175 ... 1 A
• Fixed switching point setting
• High maximum load
• As option with semiconductor output
• Width
IK 8839: 17.5 mm
IL 8839: 35 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 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

• 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, 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