Measuring and monitoring relays DOLD

• According to IEC/EN 60 255, DIN VDE 0435-303
• Recognizes fuse failures in three-phase mains up to 3 AC 690 V
• Can be used for all types and sizes of fuses
• Independent of phase sequence
• Signals even if loads are switched off
• No malfunction on
- asymmetrical mains
- mains with harmonic waves
- motors producing feedback
• Shorter response time than with motor circuit-breakers
• Green LED for intact fuses
• Red LED for fuse failure
• As option: open/closed circuit operation in the case
of IP 9075 programmable via X4-X5 or X3-X4
• As option: with manual reset function and remote reset,
programmable via X1-X2
• As option: 1 NO contact or 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 9075, SL 9075: width 35 mm
IP 9075, SP 9075: width 70 mm

• According to IEC / EN 60 255, VDE 0435 part 303
• Detection of over- or underfrequency of alternating voltage
(adjustable function)
• Fast reaction time by measuring duration of cycle of input frequency
• Universal measuring input for AC-voltages of 15 ... 280 V
as well as 30 ... 550 V
• As option with measuring input for inverters
• 4 ranges adjustable response value 1,5 ... 200 Hz or 5 ... 600 Hz
• Adjustable hysteresis
• Adjustable start up time delay 0 ... 50 s at function underfrequency
• Adjustable monitoring time for missing input signal at function
overfrequency
• Response delay programmable via terminals 0 ... 100 s
• Alarm storing or auto-reset programmable via terminals
• Galvanic separation between measuring input, auxiliary voltage
and output contacts
• MH 9837 available with wide input range for auxiliary supply
(AC/DC 24 ... 60 V or AC/DC 110 ... 230 V)
• 2 changeover contacts, closed circuit operation
• Open circuit operation on request
• LED indication for auxiliary voltage, measuring voltage and
alarm status
• MH 9837.12/008: with galvanic separated analogue output (current/
voltage) and 11 step LED chain for the actual frequency
• Device available with 2 response values and seperately controlled
outputrelays for under- and overfrequency see MK 9837N/500
• 2 possible compact designs:
MK 9837N: Width 22,5 mm
MH 9837: Width 45 mm

• According to IEC/EN 60 255, DIN VDE 0435-303
• To monitor fuses in single and 3-phase AC voltage systems
• Undervoltage detection below 0.7 x UN
• No separate auxiliary necessary
• 2 changeover contacts
• 2 nominal voltages adjustable:
3/N AC 240 V / 140 V or 3/N AC400 V / 230 V or
fixed nominal voltage: 3/N AC 110 V / 64 V
• Adjustable operate delay
• Energized on trip
• Automatic adjustment to 50 Hz and 60 Hz mains frequency
• Width 22.5 mm

• According to IEC/EN 60 255, DIN VDE 0435-303
• Recognizes fuse failures in three-phase mains up to 3 AC 690 V
• Can be used for all types and sizes of fuses
• Independent of phase sequence
• Signals even if loads are switched off
• No malfunction on
- asymmetrical mains
- mains with harmonic waves
- motors producing feedback
• Shorter response time than with motor circuit-breakers
• Green LED for intact fuses
• Red LED for fuse failure
• As option: open/closed circuit operation in the case
of IP 9075 programmable via X4-X5 or X3-X4
• As option: with manual reset function and remote reset,
programmable via X1-X2
• As option: 1 NO contact or 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 9075, SL 9075: width 35 mm
IP 9075, SP 9075: width 70 mm

• According IEC/EN 60255, DIN VDE 0435-303
• Detection of under- or overfrequency
• Adjustable response value
• Optionally 1 or 2 changeover contacts
• Width 45 mm

• According to IEC / EN 60 255, VDE 0435 part 303
• Detection of over- or underfrequency of alternating voltage
(adjustable function)
• Fast reaction time by measuring duration of cycle of input frequency
• Universal measuring input for AC-voltages of 15 ... 280 V
as well as 30 ... 550 V
• As option with measuring input for inverters
• 4 ranges adjustable response value 1,5 ... 200 Hz or 5 ... 600 Hz
• Adjustable hysteresis
• Adjustable start up time delay 0 ... 50 s at function underfrequency
• Adjustable monitoring time for missing input signal at function
overfrequency
• Response delay programmable via terminals 0 ... 100 s
• Alarm storing or auto-reset programmable via terminals
• Galvanic separation between measuring input, auxiliary voltage
and output contacts
• MH 9837 available with wide input range for auxiliary supply
(AC/DC 24 ... 60 V or AC/DC 110 ... 230 V)
• 2 changeover contacts, closed circuit operation
• Open circuit operation on request
• LED indication for auxiliary voltage, measuring voltage and
alarm status
• MH 9837.12/008: with galvanic separated analogue output (current/
voltage) and 11 step LED chain for the actual frequency
• Device available with 2 response values and seperately controlled
outputrelays for under- and overfrequency see MK 9837N/500
• 2 possible compact designs:
MK 9837N: Width 22,5 mm
MH 9837: Width 45 mm

• According to IEC/EN 60 255-1
• Detection of
-- missing neutral in the system
-- broken neutral on IL/SL 9069
-- neutral exchanged against phase
• Detection of phase failure also with disconnected load
• For 3-phase systems
• De-energized on trip
• LED indicator for operation/state of output contacts
• Single phase connection possible
• Without auxiliary voltage
• 2 cangeover contacts
• Optionally with adjustable asymmetry detection and on delay
• Devices available in 2 enclosure version:
IL 9069: depth 59 mm with terminals at the bottom for
installations systems and industrial distribution
systems according to DIN 43 880
SL 9069: 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
• Monitoring of overfrequency and underfrequency (selectable)
in A.C. power systems
• Without auxiliary voltage
• Selection of frequency range for 50 or 60 Hz systems
• Adjustable response value
• Adjustable hysteresis
• De-energized on trip (output relay not activated in case of error)
• LED indicators for measuring voltage and contact position
• 1 changeover contact
• As option energized on trip (output relay activated in case of error)
• Devices available in 2 enclosure versions:
IK 9143: depth 58 mm, with terminals at the bottom for
installation systems and industrial distribution
systems according to DIN 43 880
SK 9143: depth 98 mm, with terminals at the top for cabinets
with mounting plate and cable duct
• 17.5 mm width

• According to IEC/EN 60 255-1
• Detection of
-- missing neutral in the system
-- broken neutral on IL/SL 9069
-- neutral exchanged against phase
• Detection of phase failure also with disconnected load
• For 3-phase systems
• De-energized on trip
• LED indicator for operation/state of output contacts
• Single phase connection possible
• Without auxiliary voltage
• 2 cangeover contacts
• Optionally with adjustable asymmetry detection and on delay
• Devices available in 2 enclosure version:
IL 9069: depth 59 mm with terminals at the bottom for
installations systems and industrial distribution
systems according to DIN 43 880
SL 9069: 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
• Overfrequency or underfrequency monitoring of AC voltages
• Adjustable response value fmin. or fmax 5 ... 200 Hz or 15 ... 600 Hz
• Adjustable hysteresis
• Large voltage range of the measuring input (nominal voltage
AC 24 ... 440 V)
• De-energized on trip
• LED indication for auxiliary voltage, measuring voltage and contact
position
• 1 changeover contact
• As option for frequency inverters with a range of 1 … 300 Hz
• 2 changeover contacts available on request
• As option adjustable start-up delay available
• Energized on trip function available on request
• Devices available in 2 enclosure versions:
IL 9837: depth 58 mm, with terminals at the bottom for
installation systems and industrial distribution
systems according to DIN 43 880
SL 9837: depth 98 mm, with terminals at the top for cabinets
with mounting plate and cable duct
• 35 mm width

• According to IEC/EN 60 255, DIN VDE 0435-303
• Monitoring of overfrequency and underfrequency (selectable)
in A.C. power systems
• Without auxiliary voltage
• Selection of frequency range for 50 or 60 Hz systems
• Adjustable response value
• Adjustable hysteresis
• De-energized on trip (output relay not activated in case of error)
• LED indicators for measuring voltage and contact position
• 1 changeover contact
• As option energized on trip (output relay activated in case of error)
• Devices available in 2 enclosure versions:
IK 9143: depth 58 mm, with terminals at the bottom for
installation systems and industrial distribution
systems according to DIN 43 880
SK 9143: depth 98 mm, with terminals at the top for cabinets
with mounting plate and cable duct
• 17.5 mm width

• According to IEC/EN 60 255, DIN VDE 0435-303
• Overfrequency or underfrequency monitoring of AC voltages
• Adjustable response value fmin. or fmax 5 ... 200 Hz or 15 ... 600 Hz
• Adjustable hysteresis
• Large voltage range of the measuring input (nominal voltage
AC 24 ... 440 V)
• De-energized on trip
• LED indication for auxiliary voltage, measuring voltage and contact
position
• 1 changeover contact
• As option for frequency inverters with a range of 1 … 300 Hz
• 2 changeover contacts available on request
• As option adjustable start-up delay available
• Energized on trip function available on request
• Devices available in 2 enclosure versions:
IL 9837: depth 58 mm, with terminals at the bottom for
installation systems and industrial distribution
systems according to DIN 43 880
SL 9837: depth 98 mm, with terminals at the top for cabinets
with mounting plate and cable duct
• 35 mm width

• 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 255, EN 60 255, VDE 0435 part 303
• For nominal voltage from 3 AC 230 V to 500 V
• Detection of
- voltage asymmetry
- wrong phase sequence
- phase failure
• Detection of feedback voltage
• BA 9042 optionally with adjustable time delay
• Closed circuit operation
• BA 9042 LED indicators for operation and state of contacts
• Width 45 mm

• According to IEC 255, EN 60 255, VDE 0435 part 303
• For nominal voltage from 3 AC 230 V to 500 V
• Detection of
- voltage asymmetry
- wrong phase sequence
- phase failure
• Detection of feedback voltage
• BA 9042 optionally with adjustable time delay
• Closed circuit operation
• BA 9042 LED indicators for operation and state of contacts
• Width 45 mm

• According to IEC 255, EN 60 255, VDE 0435 part 303
• Recognition of
- voltage asymmetry
- phase failure
- voltage feedback
- optionally with phase sequence recognition
• Optionally with adjustable response delay
• 2 LED displays for power supply and state of contact
• Wire connection: also 2 x 1.5 mm2 stranded ferruled, or
2 x 2.5 mm2 solid DIN 46 228-1/-2/-3/-4
• As option with pluggable terminal blocks for easy exchange of devices
- with screw terminals
- or with cage clamp terminals
• BA 9040: width 45 mm
MK 9040N: width 22.5 mm

• According to IEC 255, EN 60 255, VDE 0435 part 303
• Recognition of
- voltage asymmetry
- phase failure
- voltage feedback
- optionally with phase sequence recognition
• Optionally with adjustable response delay
• 2 LED displays for power supply and state of contact
• Wire connection: also 2 x 1.5 mm2 stranded ferruled, or
2 x 2.5 mm2 solid DIN 46 228-1/-2/-3/-4
• As option with pluggable terminal blocks for easy exchange of devices
- with screw terminals
- or with cage clamp terminals
• BA 9040: width 45 mm
MK 9040N: width 22.5 mm

• According to IEC/EN 60255-1, IEC/EN 60255-26, DIN VDE 0435-303
• Monitoring of
- Under- and overvoltage
- Asymmetry
- Phase failure
- Phase sequence
• Adjustable time delay between 0.1 ... 5 s
• One LED in each case for:
- Auxiliary voltage A1/A2
-Overvoltage Umax.
- Undervoltage Umin.
- Asymmetry / Phase sequence / Power failure
- Contact position
• Closed circuit operation
• 2 changeover contacts
• As option available with open circuit operation
• Width 45 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