Measuring relays for main monitoring DOLD

• 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 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 EN 60 255-1
• For nominal voltages from 3 AC 230 up to 500 V
• Detection of
- voltage asymmetry
- incorrect phase sequence
- phase failure
- undervoltage
• Voltage feedback recognition
• Also suitable for harmonic industrial mains
• Closed circuit operation
• Contact position indication
• With adjustable delay
• 2 C/O contacts
• Width: 75 mm

• According to IEC/EN 60255, DIN VDE 0435-303
• Detection of phase sequence in 3-phase systems
• Without auxiliary voltage
• Closed circuit operation
• LED indicator for phase sequence
• Output 1 changeover contact
• Devices available in 2 enclosure versions:
- I- and R-model, e.g. IK 9169 with depth 61 mm or RK 9169
withdepth 71 mm with terminals at the bottom for
installation systems and industrial distribution
systems according to DIN 43 880
- S-model, 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 DIN EN 60255
• Detection of incorrect phase sequence
• No separately auxiliary voltage necessary
• Nominal voltage range 3 AC 380 ... 690 V
• Suitable for operation with inverters (f = 40 ... 80 Hz)
• Relay output:
- IL/SL 9059: 1 changeover contact
- OA 9059: 1 NC contact
• Extended temperature range
• Devices available in 3 enclosure versions:
I L 9059: depth 59 mm, with terminals at the bottom for
installation systems and industrial distribution systems
according to DIN 43 880
SL 9059: depth 98 mm, with terminals at the top for cabinets
with mounting plate and cable duct
• OA 9059: sealed modul with stranded wire connection
suitable for mounting in terminal box
• Width
- IL/SL 9059: 35 mm
- OA 9059: 62 mm

• According to IEC/EN 60255, DIN VDE 0435-303
• Detection of phase sequence in 3-phase systems
• Without auxiliary voltage
• Closed circuit operation
• LED indicator for phase sequence
• Output 1 changeover contact
• Devices available in 2 enclosure versions:
- I- and R-model, e.g. IK 9169 with depth 61 mm or RK 9169
withdepth 71 mm with terminals at the bottom for
installation systems and industrial distribution
systems according to DIN 43 880
- S-model, 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 DIN EN 60255
• Detection of incorrect phase sequence
• No separately auxiliary voltage necessary
• Nominal voltage range 3 AC 380 ... 690 V
• Suitable for operation with inverters (f = 40 ... 80 Hz)
• Relay output:
- IL/SL 9059: 1 changeover contact
- OA 9059: 1 NC contact
• Extended temperature range
• Devices available in 3 enclosure versions:
I L 9059: depth 59 mm, with terminals at the bottom for
installation systems and industrial distribution systems
according to DIN 43 880
SL 9059: depth 98 mm, with terminals at the top for cabinets
with mounting plate and cable duct
• OA 9059: sealed modul with stranded wire connection
suitable for mounting in terminal box
• Width
- IL/SL 9059: 35 mm
- OA 9059: 62 mm

• According to DIN EN 60255
• Detection of incorrect phase sequence
• No separately auxiliary voltage necessary
• Nominal voltage range 3 AC 380 ... 690 V
• Suitable for operation with inverters (f = 40 ... 80 Hz)
• Relay output:
- IL/SL 9059: 1 changeover contact
- OA 9059: 1 NC contact
• Extended temperature range
• Devices available in 3 enclosure versions:
I L 9059: depth 59 mm, with terminals at the bottom for
installation systems and industrial distribution systems
according to DIN 43 880
SL 9059: depth 98 mm, with terminals at the top for cabinets
with mounting plate and cable duct
• OA 9059: sealed modul with stranded wire connection
suitable for mounting in terminal box
• Width
- IL/SL 9059: 35 mm
- OA 9059: 62 mm