Control relays

60 companies | 143 products
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voltage control relay / DIN rail / programmable / compact
voltage control relay
easyE4

Whatever your application, the easyE4 control relay allows for control systems that are efficient, flexible and easy to implement. The new easyE4 range is significantly more compact than ...

level control relay / SPDT / DIN rail / adjustable
level control relay
72 series

Tripping current: 16, 30 A
Trigger voltage: 250, 400 V

... •Confectionary machines •Control and management of water •Control panels •Control panels for pumps •Control systems •Discotheques, swimming pools and fountains •Galvanic ...

level control relay / programmable / adjustable / configurable
level control relay
8040

Drexelbrooks range of B/W Control products includes thye 8040 Control and Alarm Panel. The control panel series can be adapted individually to match the application including pump ...

programmable control relay / adjustable / configurable / multifunction
programmable control relay
1500

Trigger voltage: 110 V - 600 V

... operating equipment, the Series 1500 Induction Relay permits use of low-cost light gauge wires for the control circuit to level sensing electrodes. Relays with low voltage secondary coils ...

temperature control relay / phase loss / phase sequence / phase unbalance
temperature control relay
T2, TST-24 series

This product is able to control the temperature of a motor room, as well as the temperature inside switchboards, which are defined by the lack of a motor room. The design in accordance to the EN 81-1 standard and compliance ...

phase sequence control relay / phase loss / phase unbalance / temperature
phase sequence control relay
ST, ST-D

Trigger voltage: 230 V

The ST/ST-D by Fanox are phase and temperature relays which serve as protection against phase imbalance, phase loss, phase sequence and over temperature. These are compatible with most motors that have a PTC sensor operation ...

phase sequence control relay / phase loss / phase unbalance / three-phase
phase sequence control relay
S series

Trigger voltage: 13 V - 250 V

Fanox Phase Control – S protects from phase loss, phase imbalance, and phase sequence. It has been designed for protection of three-phase appliances. Examples include air conditioners, elevators, cranes, hoists ...

electric motor control relay / current / compact / single-phase
electric motor control relay
4CR

Tripping current: 25 A

The 4CR current type motor starting relay is a compact, high capacity relay, designed for universal application to splitphase and capacitor start, single-phase motors with start-winding currents up to 25 amperes.

level control relay
level control relay
WLCA2M1

Tripping current: 10 A

Water Level Controller [WLCA2M1] Features Used for Drain & Fill Control, 3 Nos Stainless Steel Prods Trip Setting According to The Level of Sensor Placed in The Water Tank Electrical Connection Auxiliary Supply Display ...

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SELEC Controls Pvt. Ltd.
phase sequence control relay / DIN rail
phase sequence control relay
PSR 1

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SELEC Controls Pvt. Ltd.
phase sequence control relay / DIN rail
phase sequence control relay
PSR 2

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SELEC Controls Pvt. Ltd.
safety control relay / configurable
safety control relay
eloFlex Mini 470EFR...

eloFlex Mini 470EFR… eloFlex Mini 470EFR... is a configurable safety relay with 2 independent safety inputs (2-channel) and 2 safety outputs (2-channel) as well as 1 control output. The internal logic ...

current control relay / DIN rail
current control relay
WI series

The WI current detectors are electronic devices with an output relay that is connected or disconnected, in accordance with the level of current detected in the circuit. The trip level is adjusted with the potentiometer ...

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CIRCUTOR
current control relay / digital / programmable / configurable
current control relay
CDR8 series

... configured as an earth leakage or current relay. It measures the true root mean square, taking decisions about the operations being carried out. It can work as a maximum or minimum current relay or as ...

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CIRCUTOR
voltage control relay / phase sequence / DIN rail
voltage control relay
RV series

Trigger voltage: 300, 350, 400 V

Electronic relay for protection and continuous voltage monitoring. Protection against voltage surges, triggers at voltages higher than 265 V. Trigger time according to the voltage value less than or equal to: 300 ...

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CIRCUTOR
voltage control relay / DIN rail / AC/DC / time delay
voltage control relay
002470013

Trigger voltage: 12 V - 240 V

The Delay ON star/delta relay CRM-2T is mainly designed to provide an extremely high quality performance for any related applications the device will be used. The relay has the capability to control ...

level control relay / DIN rail / time delay
level control relay
002471701

The Level Switch HRH - 1 is used for level tracking in tanks, wells, reservoirs and wells. The Level Switch HRH - 1 has one switch with single state tracking, the other switch for double state tracking and two separate switches with single ...

phase control relay / voltage / 1 NO/NC / AC/DC
phase control relay
2329

Tripping current: 5 A
Trigger voltage: 250 V

Relay for line control - 3 output relays with 250 VAC/5 A CO contacts. Pluggable on the following sockets : 9244, 9246, 9243 & 9946. Detailed table of the coil resistance data is ...

phase control relay / voltage / 2 NO/NC / AC/DC
phase control relay
2361

Tripping current: 10 A
Trigger voltage: 24, 220, 230 V

Relay for phases rotation control - 2 CO contacts. Pluggable on the following sockets : 9244, 9246, 9243 & 9946. Detailed table of the coil resistance data is available in the technical support ...

adjustable control relay / plug-in / electronic
adjustable control relay
Con alternancia

Electronic relay for the automatic control of conductive liquids in two different tanks. Two independent adjustable sensitivities, for well and tank. Monitoring filling (up) or emptying (down). Both ...

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GAVE ELECTRO
level control relay
level control relay
Con alternancia y alarma

Integration of level switch, alternating relay and alarm relay in a single device. Suitable for installations where we want a large pumping capacity without sacrificing the safety of an alarm indication.

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GAVE ELECTRO
level control relay
level control relay
Con alarma

Indicated for applications where we want to increase security by adding a level probe associated with an alarm relay. Versions with and without protection. TOTAL COMPATIBILITY HN1.

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GAVE ELECTRO
voltage control relay / 1 NO / for electric motors / panel-mount
voltage control relay
RSR-72

Trigger voltage: 240, 110 V

The RSR-72 type relay for restart and re-acceleration is used in restarting automatic motors, following control and protection device opening, as a result of a brief line voltage interruption or drop-out. ...

trip circuit control relay / 2 NO/NC / DIN rail / AC/DC
trip circuit control relay
TCS-1, TCS-2 series

Tripping current: 6, 2, 4 A
Trigger voltage: 24, 48, 110, 230, 400 V

... in the circuit line. The TCS-1 features an auxiliary voltage supply of 24,48V AC/DC with 13-30V AC/DC of the circuit under control. This unit has eight to nine terminals, and a tripping time delay of 0.4 to one second. ...

three-phase control relay / digital / panel-mount / for electric motors
three-phase control relay
TDK-01

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Tense
three-phase control relay / digital / panel-mount / for electric motors
three-phase control relay
TDK-02

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Tense
level control relay / DIN rail
level control relay
VSR-05

Trigger voltage: 150 V - 260 V

General SSR-05 and VSR-05 liquid level control relays has been designed for controlling the discharge of tanks and wells containing conductive liquids.

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Tense
insulation control relay / 1 NC / single-phase / three-phase
insulation control relay
SRI/D2

Trigger voltage: 400 V

... maintain the insulation of monophase or threephase networks, under control. It operates on the principle of the measurement direct voltage injection between the network under control and earth. The ...

insulation control relay / 2 NC / 1 NC / single-phase
insulation control relay
SRI3/I2RS485

Trigger voltage: 500 V

The relays for permanent control of insulation SRI3/I2 monitors continuously the status of networks with neutral to ground (IT systems). The instruments can detect insulation faults due to the resistive ...

insulation control relay / DIN rail / three-phase / DC
insulation control relay
SRI3/D2

The SRI3/D2 is a device used for continuous monitoring of the isolation of single-phase or three-phase with neutral earthed or without neutral. The tool is able, in the event of loss of insulation, to give two different levels of reporting. ...

over-voltage control relay / under-voltage / current / phase sequence
over-voltage control relay
WDH-31-200

... thermal relay, time relay and transmitter; the controller has wide protection scope, accurate and reliable action, and enables visualized troubleshooting, and can help customers to judge fault causes ...

over-voltage control relay / under-voltage / current / phase unbalance
over-voltage control relay
WDH-31-210

... and control for low-voltage AC asynchronous motor, provides various control modes and protection functions, rich on-off quantity input and relay output programming functions, and can ...

over-voltage control relay / under-voltage / current / phase sequence
over-voltage control relay
WDH-31-500

... and control for low-voltage AC asynchronous motor, provides various control modes and protection functions, rich on-off quantity input and relay output programming functions, and can ...

level control relay / DIN rail
level control relay
EXI-RELAIS

A safe relay for float switches used in potentially explosive atmospheres The KARI Exi relay is designed to offer a safe control system solution for float switches used in potentially ...

safety control relay / DIN rail
safety control relay

SSZ- safety units are used for stoppage of dangerous machines and other equipment, which functioning can be dangerous for people present in their hazardous zone. They can be also used for signaling and warning about danger for people ...

safety control relay / DIN rail
safety control relay
ZSY series

Trigger voltage: 24 V

Klaschka Sident Series safety switches are non contacting and contain large switching distances of 20 mm. These switches have high tolerance against vibrations, tamper-proof, rigid, and endures up a high amount of dusts and dirt. There ...

level control relay / DIN rail
level control relay
MXL-10 series

Brodersen's MXL-10 Level relay is a level relay to control one or two levels in a container, with conductive fluids. The relay can either control the ...

safety control relay / 2 NO/NC / DIN rail / AC/DC
safety control relay
SRL1

Tripping current: 4, 2 A

... diagnostics • Dual channel output • Automatic/manual-monitored reset The SRL-1 Safety relay has dual channel, low voltage inputs, two normally open control contact outputs and one normally closed ...

speed control relay / panel-mount / programmable / multifunction
speed control relay
7VU683

... with tens of millisecond has small impact to rotating loads. Thus, the High Speed Busbar Transfer (HSBT) device helps to control and monitor the progress to ensure the fast but reliable switching-over. It can be initiated ...

trip circuit control relay / over-voltage / time delay / panel-mount
trip circuit control relay
DBT

The DBT is a digital relay that supervises the integrity of the breaker's tripping and closing circuits. The relay checks the continuity of the coil regardless of the status of the breaker ...

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GE Grid Solutions
phase sequence control relay / 1 NO/NC / three-phase / DIN rail
phase sequence control relay
EMWS

Trigger voltage: 280, 480 V

This well developed relay has the capability to control 3 phase networks when encountering phase sequences and total phase failures. It allows a wide range of voltages from 3 x 208 to 3 x 480V AC, ability ...

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Crouzet
safety control relay / time delay / IEC / DIN rail
safety control relay
700-CF

Bulletin 700-CF IEC Control Relays provide features required for demanding industrial applications—mechanically linked contacts, timing options, long contact life—in an IEC design. Features IEC industrial ...

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Allen Bradley
synchronization control relay / paralleling / panel-mount
synchronization control relay
SYNCHROTACT® 5

The Synchorotact 5 is made with a good design that works with care. It is made by ABB and is made with an automatic synchronizing setup and can parallel networks and busbars. This is useful in that it is very safe to use and is a redundant ...

How to choose this product

control-relay

A monitoring relay is used to monitor and report values that exceed predefined parameters.

Applications

These devices can be used to monitor electrical parameters, such as power factor, voltage, current or phase. They also monitor manufacturing parameters, including temperature, pressure, levels and frequencies.

Technologies

As with other relays, monitoring models may be electromechanical, though most now are semiconductor-based solid state relays. Some are directly programmable and are presented in ISO cases for rail installation.

How to choose

Choice depends on the intended application and the parameters to be monitored.