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Measuring and monitoring relays

Various measuring and monitoring relays are available for the purpose of monitoring electrical quantities. In addition to overvoltage, undervoltage, frequency, unbalance, phase sequence, phase failure and loop monitoring, special solutions for specific applications are also possible: extended temperature ranges, sector-specific standards, compact design, country-specific profiles.

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12 Products found

LINETRAXX® VME420
LINETRAXX® VME420

Voltage and frequency relay for single-phase AC and DC systems (separate power supply)

LINETRAXX® VME421H
LINETRAXX® VME421H

Multifunctional monitoring relay for undervoltage, overvoltage and frequency in AC/DC systems without separate supply voltage

LINETRAXX® VMD420
LINETRAXX® VMD420

Multifunctional voltage monitoring relay for 3(N)AC systems, frequency/overvoltage/undervoltage, phase sequence, phase failure

LINETRAXX® VMD421H
LINETRAXX® VMD421H

Multifunctional voltage monitoring relay for 3(N)AC systems, frequency/overvoltage/undervoltage/window discriminator function, phase sequence, phase failure

LINETRAXX® VMD460-NA
LINETRAXX® VMD460-NA

Network and system protection (NS protection) for monitoring the power infeed of power generation systems

LINETRAXX® VMD461
LINETRAXX® VMD461 with CD440

Multifunctional voltage relay for AC, DC, 3(N)AC systems

LINETRAXX® VMD258
LINETRAXX® VMD258

Undervoltage/overvoltage relay for monitoring three-phase AC systems (window discriminator function)

LINETRAXX® CME420
LINETRAXX® CME420

Multifunctional current relay, AC, overcurrent/undercurrent/window discriminator function

LINETRAXX® CMD420/CMD421
LINETRAXX® CMD420/CMD421

Current monitoring devices for monitoring 3AC currents by means of measuring current transformers

LINETRAXX® CMS460-D
LINETRAXX® CMS460-D

Multichannel AC, pulsed DC sensitive load current evaluator for AC systems (TN, TT and IT systems)

LINETRAXX® GM420
LINETRAXX® GM420

Loop monitoring relay for monitoring loop resistances or PE conductor connections

RC48C
RC48C

Trailing cable protection, ground-fault ground-check monitor

LINETRAXX® VME420
LINETRAXX® VME420

Voltage and frequency relay for single-phase AC and DC systems (separate power supply)

Details
LINETRAXX® VME421H
LINETRAXX® VME421H

Multifunctional monitoring relay for undervoltage, overvoltage and frequency in AC/DC systems without separate supply voltage

Details
LINETRAXX® VMD420
LINETRAXX® VMD420

Multifunctional voltage monitoring relay for 3(N)AC systems, frequency/overvoltage/undervoltage, phase sequence, phase failure

Details
LINETRAXX® VMD421H
LINETRAXX® VMD421H

Multifunctional voltage monitoring relay for 3(N)AC systems, frequency/overvoltage/undervoltage/window discriminator function, phase sequence, phase failure

Details
LINETRAXX® VMD460-NA
LINETRAXX® VMD460-NA

Network and system protection (NS protection) for monitoring the power infeed of power generation systems

Details
LINETRAXX® VMD461
LINETRAXX® VMD461 with CD440

Multifunctional voltage relay for AC, DC, 3(N)AC systems

Details
LINETRAXX® VMD258
LINETRAXX® VMD258

Undervoltage/overvoltage relay for monitoring three-phase AC systems (window discriminator function)

Details
LINETRAXX® CME420
LINETRAXX® CME420

Multifunctional current relay, AC, overcurrent/undercurrent/window discriminator function

Details
LINETRAXX® CMD420/CMD421
LINETRAXX® CMD420/CMD421

Current monitoring devices for monitoring 3AC currents by means of measuring current transformers

Details
LINETRAXX® CMS460-D
LINETRAXX® CMS460-D

Multichannel AC, pulsed DC sensitive load current evaluator for AC systems (TN, TT and IT systems)

Details
LINETRAXX® GM420
LINETRAXX® GM420

Loop monitoring relay for monitoring loop resistances or PE conductor connections

Details
RC48C
RC48C

Trailing cable protection, ground-fault ground-check monitor

Details