Frequency monitoring relays

20 companies | 43 products
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voltage monitoring relay / frequency / phase sequence / phase unbalance
voltage monitoring relay
LINETRAXX® VMD461

... AC, 3AC, 3NAC and DC The multifunctional voltage monitoring relay VMD461 monitors frequencies, undervoltages and overvoltages in DC, AC and 3(N)AC systems. The phase ...

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BENDER
under-voltage monitoring relay / over-voltage / frequency / 1 NO/NC
under-voltage monitoring relay
LINETRAXX® VME420 series

The VME420 series of products is comprised of voltage relays that are designed to monitor the undervoltage, overvoltage and voltage between two threshold values. This item works with both DC and AC systems, ...

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BENDER
under-voltage monitoring relay / over-voltage / frequency / 1 NO/NC
under-voltage monitoring relay
LINETRAXX® VME421H series

The voltage relays of the VME421H series are designed to monitor the frequency, undervoltage, overvoltage and the voltage between two threshold values (window discriminator function) ...

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BENDER
over-current monitoring relay / under-current / under-frequency / over-frequency
over-current monitoring relay
100 - 690 V

Trigger voltage: 100 V - 690 V

Carlo Gavazzi offers a comprehensive range of monitoring controls for monitoring of phase loss, incorrect phase sequence, phase unbalance, over/under current, over/under load, over/under frequency, ...

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CARLO GAVAZZI
feeder monitoring relay / over-voltage / over-current / frequency
feeder monitoring relay
SIL-B

Trigger voltage: 24 V - 300 V

SIL-B Feeder Protection Relay Protection against overcurrent and overvoltage. The ability of measuring current, voltage and frecuency levels combined with Syncro-Check and directional protection functions makes him ...

voltage monitoring relay / frequency / phase sequence / phase loss
voltage monitoring relay
RE NA003

Monitoring relay RE series; Frequency and voltage monitoring; Grid and system protection; Functional safety; Measuring voltage 3 x 400/230V AC; Supply voltage 24V DC, ...

frequency monitoring relay
frequency monitoring relay
SAFEMASTER S | UH 6937

Trigger voltage: 690 V

The speed and frequency monitor UH 6937 provides safe frequency monitoring of AC voltages. It is used to monitor the output frequency ...

voltage monitoring relay / frequency / for generators / DIN rail
voltage monitoring relay
VARIMETER NA | RP 9811

Trigger voltage: 400, 230 V

Standard-conforming mains and system protection With the new voltage and frequency monitor RP 9811 of the VARIMETER NA family DOLD offers a safe and standard-conforming solution for optimal mains monitoring ...

current monitoring relay / voltage / frequency / power factor
current monitoring relay
VARIMETER PRO | MK 9300N

These are measuring relays by DOLD which regulate electrical data like current, voltage, power, resistance, signal fault conditions and disturbances. It has the ability to protect a complicated system which ensures a ...

speed monitoring relay / frequency / adjustable
speed monitoring relay
480041H0, 480041H1

The 480041H1 model assembled by Elobau is a speed and stand-still monitoring relay engineered for machines and drives. It offers users a switching current of 2 A and a 30 V DC of switching voltage. The ...

frequency monitoring relay / synchronization / programmable / digital
frequency monitoring relay
SYNCHROMAX series

Trigger voltage: 110, 230, 400 V

... Voltage, generator frequency and network measurement and display (TRMS), including the unbalance between the generator and the network. Automatic synchronisation by simply programming the contactor closing time. Wide ...

frequency monitoring relay / 1 NO / adjustable / compact
frequency monitoring relay
RF5

Limit value switch for frequency (square wave signal). Simple application; for rough environments. Limit value freely adjustable by drum scale. Open-circuit or closed-circuit devices available. Compact and robust ...

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NORIS Group GmbH
frequency monitoring relay / adjustable / compact / for electric motors
frequency monitoring relay
RFS5

Limit value switch for frequency (sinusoidal signal). Simple application; for rough environments. Limit value freely adjustable by drum scale. Open-circuit or closed-circuit devices available. Compact and robust construction. Operating ...

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NORIS Group GmbH
frequency monitoring relay / adjustable / compact / DIN rail
frequency monitoring relay
RW5

Limit value switch for frequency (alternating voltage). Simple application; for rough environments. Limit value freely adjustable by drum scale. Open-circuit or closed-circuit devices available. Compact and robust ...

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NORIS Group GmbH
under-voltage monitoring relay / over-voltage / phase sequence / phase unbalance
under-voltage monitoring relay
PPR10

Monitoring of all static 3-phase parameters: Over / Undervoltage, Sequence, Asymmetry, Frequency. Monitoring of dynamic parameters: df/dt (ROCOF) and Phase angle fault. Programmable ...

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COMADAN
frequency monitoring relay / pulse / DIN rail
frequency monitoring relay
FSN series

Trigger voltage: 24, 42, 115, 230 V

FSN Frequency and pulse rate measuring relays complete the ISN pulse rate measuring relay with high frequencies. Three threshold ranges from 100 Hz to| 120 kHz can be selected.

frequency monitoring relay / DIN rail
frequency monitoring relay
FUR series

Trigger voltage: 24, 115, 230 V

This is the Klaschka relay for measuring frequency of about 0.4 kHz at maximum. It monitors motors that are driven by static frequency converters. It comes with an adjustable ...

under-frequency monitoring relay / over-frequency / adjustable / digital
under-frequency monitoring relay
MS2H34-S

... Series relay is a frequency monitoring relay with four stages of adjustable frequency pick up & drop out points. Each frequency ...

voltage monitoring relay / frequency / 2 NO/NC
voltage monitoring relay
VRSC1-28

Monitoring relay VRSC1-28Synchro-check mointoring relayDESCRIPTION This unit compares the voltage, frequency and phase of two supplies and operates a relay according ...

frequency monitoring relay / 2 NO/NC / adjustable / time delay
frequency monitoring relay
FROU1-28

Frequency monitoring relay DESCRIPTION This unit monitors the frequency of a single phase supply and operates a relay if the frequency ...

frequency monitoring relay / DIN rail
frequency monitoring relay
PXF-10 series

Trigger voltage: 24, 115, 230 V

Converts process signals for a pulsating output, which can be applied on the digital inputs of a PLC. Frequency output 0,05 - 5kHz or 0,5 - 50kHz.

frequency monitoring relay / voltage / single-phase / three-phase
frequency monitoring relay
CM-UFD.M31

The grid feeding monitoring relay CM-UFD.M31 monitors voltage and frequency in single- and three-phase grids. In connection with alternating-current converters with ...

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ABB
frequency monitoring relay / synchronization / flush-mount / panel-mount
frequency monitoring relay
SYNCRO 96C

Synchronism Relay with LED to contact 96x96mm Configurable by keyboard Measure and display synchronism parameters Voltage difference percentage Frequency difference percentage Phase angle Manual, ...

under-frequency monitoring relay / over-frequency / DIN rail / AC
under-frequency monitoring relay
5 - 135 Hz

Trigger voltage: 110 V - 440 V

The Frequency Monitoring Relay is manufactured with monitor frequencies that have three signals which are Sine, Square, and Triangular. This unit can ...

voltage monitoring relay / frequency / three-phase
voltage monitoring relay
SLU-0200 series

Trigger voltage: 200 V - 500 V

... can be examined while the Wye systems need no attachments to neutral. However, the SLU-0200 Monitor transmissions are not ideal for changeable frequency drive applications.

frequency monitoring relay / panel-mount
frequency monitoring relay
20 - 240 V | 292 series

The Model 292 Frequency Monitor is designed to monitor power line frequency. It is intended for systems where line frequency variations will cause improper ...

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Time Mark
frequency monitoring relay / DIN rail
frequency monitoring relay
RZ1HK110

frequency monitoring relay / DIN rail
frequency monitoring relay
230 V, 50 - 60 Hz | RLS02

Trigger voltage: 230 V

... RLS02 is an output relay manufactured by IMB. Operating at 230 V, it has an ability to deliver an output of 6A with a frequency ranging between 50 Hz to 60 Hz. In addition, it is characterized by its ...