Measuring relays for load monitoring DOLD

• According to IEC/EN 60 255, DIN VDE 0435-303
• Effective power measuring
• For single and 3-phases
• Adjustable response value 2 ... 20 % reverse power
• Hysteresis 12.5 %
• Rated current BH 9140: 5 A or 40 A
Rated current RP 9140: 5 A
• Adjustable on delay
• Open circuit operation
• LED indication for voltage supply and contact position
• 2 changeover contacts
• As option closed circuit operation
• Width:
BH 9140: 45 mm
RP 9140: 70 mm

• According to IEC/EN 60 255, DIN VDE 0435-303
• Effective power measuring
• For single and 3-phases
• Adjustable response value 2 ... 20 % reverse power
• Hysteresis 12.5 %
• Rated current BH 9140: 5 A or 40 A
Rated current RP 9140: 5 A
• Adjustable on delay
• Open circuit operation
• LED indication for voltage supply and contact position
• 2 changeover contacts
• As option closed circuit operation
• Width:
BH 9140: 45 mm
RP 9140: 70 mm

• According to EN 60 255-1
• Detection of underload (cos ϕ)
• Without auxiliary supply
• Current up to 8 A
Motors up to 5 A nominal current can be connected directly
• Higher currents via current transformer
• SL 9065CT with integrated current transformer for currents up to 100 A
• Adjustable response value
• Automatic reset (Alarm auto reset)
• Adjustable operate delay up to 100 s
• De-energized on trip
• For single and 3-phase loads e.g. motors
• Independent of phase sequence
• 1 changeover contact
• LED indicator voltage supply and alarm
• Devices available in 2 enclosure versions: IK 9065: depth 58 mm,
with terminals at the bottom for installation systems and industrial
distribution systems according to DIN 43 880
SK 9065, SL 9065CT: depth 98 mm, with terminals at the top for
cabinets with mounting plate and cable duct
• IK 9065, SK 9065 width 17.5 mm
SL 9065CT width 35 mm
IK/SK 9065/100: as IK/SK 9065 but:
• programmable for
- automatic reset or manual reset (latched alarm)
- energized or de-energized on trip
• with reset button
• remote reset

• According to EN 60 255-1
• Detection of underload (cos ϕ)
• Without auxiliary supply
• Current up to 8 A
Motors up to 5 A nominal current can be connected directly
• Higher currents via current transformer
• SL 9065CT with integrated current transformer for currents up to 100 A
• Adjustable response value
• Automatic reset (Alarm auto reset)
• Adjustable operate delay up to 100 s
• De-energized on trip
• For single and 3-phase loads e.g. motors
• Independent of phase sequence
• 1 changeover contact
• LED indicator voltage supply and alarm
• Devices available in 2 enclosure versions: IK 9065: depth 58 mm,
with terminals at the bottom for installation systems and industrial
distribution systems according to DIN 43 880
SK 9065, SL 9065CT: depth 98 mm, with terminals at the top for
cabinets with mounting plate and cable duct
• IK 9065, SK 9065 width 17.5 mm
SL 9065CT width 35 mm
IK/SK 9065/100: as IK/SK 9065 but:
• programmable for
- automatic reset or manual reset (latched alarm)
- energized or de-energized on trip
• with reset button
• remote reset

• According to EN 60 255-1
• Detection of underload (cos ϕ)
• Without auxiliary supply
• Current up to 8 A
Motors up to 5 A nominal current can be connected directly
• Higher currents via current transformer
• SL 9065CT with integrated current transformer for currents up to 100 A
• Adjustable response value
• Automatic reset (Alarm auto reset)
• Adjustable operate delay up to 100 s
• De-energized on trip
• For single and 3-phase loads e.g. motors
• Independent of phase sequence
• 1 changeover contact
• LED indicator voltage supply and alarm
• Devices available in 2 enclosure versions: IK 9065: depth 58 mm,
with terminals at the bottom for installation systems and industrial
distribution systems according to DIN 43 880
SK 9065, SL 9065CT: depth 98 mm, with terminals at the top for
cabinets with mounting plate and cable duct
• IK 9065, SK 9065 width 17.5 mm
SL 9065CT width 35 mm
IK/SK 9065/100: as IK/SK 9065 but:
• programmable for
- automatic reset or manual reset (latched alarm)
- energized or de-energized on trip
• with reset button
• remote reset

• According to IEC/EN 60 255, DIN VDE 0435-303
• Detection of underload (cos ϕ)
• Current ranges up to 10 A
• Adjustable response value
• Programmable functions:
- automatic or manual reset
- closed or open circuit operation
• Manual remote reset
• Adjustable operate delay up to 100 s
• For single and 3-phase AC-systems without neutral
• Independent of phase sequence
• Also for 400 Hz systems
• MK 9065.11 can be used for motors with frequency converters
2 ... 200 Hz)
• Optionally with sealable cover
• Green indicator LED for operational mode
• Red indicator LED for underload monitoring
• Width 22.5 mm

• According to IEC/EN 60 255, VDE 0435
• Detection of underload (cos ϕ)
• Current ranges up to 10 A, for higher values a CT must be used
• Adjustable response value
• Programmable functions:
- alarm when I = 0
- automatic or manual reset
- closed or open circuit operation
• Manual remote reset
• Adjustable operate delay
• Independent of phase sequence
• Also for 400 Hz systems
• Optionally for motors with frequency converters (10 ... 100 Hz)
(see notes)
• Width 45 mm

• According to IEC/EN 60 255, DIN VDE 0435-303
• As load depending output signals are available
- 0 ... 20 mA and 0 ... 10 V or
- 4 ... 20 mA and 2 ... 10 V
• Measures effective load
• Adjustment of P1 and P2 on absolute scale
• For motors up to 22 kW / 400 V bzw. 37 kW / 690 V
• Adjustable start up delay ta
• Up to 40 A without external current transformer
• As option for single phase loads
• LED indicators
• Width 45 mm

• According to IEC/EN 60255-1, IEC/EN 60255-26, DIN/VDE 0435-303
• Identification of
- Underload P1 and Overload P2
- Overload P1 (prewarning) and Overload P2
programmable
• Adjustment of P1 and P2 on absolute scale
• For motors up to 22 kW / 400 V; 37 kW / 600 V
• Measurement: effective power
• Large current range because of automatic range selection
• 1 changeover contact for P1 and 1 changeover contact for P2
• Adjustable start-up delay ta
• Adjustable switching delay tv
• With automatic or manual reset, programmable
• Test / Reset button for easy setup
• Up to 40 A without external current transformer
• De-energized or energized on fault, programmable
• Also for single-phase operation
• LED indicators
• Width 45 mm

• According to EN 60255-1
• Active power measuring
• Relay output
MK 9397N: 1 changeover contact
MH 9397: 1 changeover contact each for overload and prewarning
• On delay
• Closed circuit operation
• As option open circuit operation
• As option with plugable terminal blocks for easy exchange
of devices
- with screw terminals
- or with cage clamp terminals
• MK 9397N: Width 22,5 mm
MH 9397: Width 45 mm