Measuring relays for load monitoring

Measuring relays for load monitoring

Reliable monitoring for higher productivity

DOLD can provide you with customer solutions for the monitoring of electrical loads (current, cos φ, effective power). The product portfolio includes current relays, underload, load and overload monitoring as well as load converters. The devices are used for the monitoring of motors as well as for the function monitoring of electricity consumers.

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Brochure, Catalog Monitoring devices, File: pdf, File size 7 MB

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1- / 3-phase

Output contacts

Operate delay

Auxiliary voltage required

Enclosure design

Width

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Motor load monitor MK 9397N

• 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...

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Motor Load Monitor MH 9397

• 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...

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Motor Load Monitor BH 9097

• 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...

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Motor Load Transmitter BH 9098

• 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...

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Underlaod monitor (Cos-phi monitor) BA 9065

• 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
•...

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Underlaod monitor (Cos-phi monitor) MK 9065

• 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...

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Underlaod monitor (Cos-phi monitor) IK 9065

• 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
•...

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Underlaod monitor (Cos-phi monitor) SK 9065

• 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
•...

Underlaod monitor (Cos-phi monitor) SL 9065CT

• 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
•...

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Reverse power monitoring BH 9140

• 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...

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Reverse power monitoring RP 9140

• 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...

More information

Load monitors from DOLD for the reliable monitoring of motors as well as for the function monitoring of electricity consumers.

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