Control relays

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Control relays | Choosing the Right Protection Relay
Protection relays can be divided into two main categories: digital relays and electromechanical relays. Digital protection relays Digital protection relays, also known simply as "digital relays", are made up of an electronic system with microprocessors. These microprocessors make it possible to analyze various grid parameters, such as voltage, intensity, or current to detect faults in an industrial control system. Thanks to microprocessors, these relays...
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voltage control relay
voltage control relay
easyE4

The easyE4 control relay from Eaton's Moeller series is ideally suited for implementing the control and regulation of various applications efficiently, flexibly and simply. The device ...

current control relay
current control relay
RM35JA32MW

Tripping current: 5 A - 15 A
Trigger voltage: 24 V - 240 V

This Harmony RM35-JA relay allows monitoring of current control in single phase networks. This modular multi function single phase current control relay is ideal for ...

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Schneider Electric
level control relay
level control relay
72 series

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

The 72 Series comprises level control relays for conductive liquids. Features include (according to Type): • Sensitivity fixed or adjustable (5…150kΩ) • 35mm rail (EN 60715) mount

level control relay
level control relay
700-CF series

Tripping current: 15 A

Our 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. Overview ...

current control relay
current control relay
WI series

... Applications WIs can be used in any application that needs to control the load: Power supply units for grinders or aggregate grinding units. Loads in extrusion machines Pump control ...

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CIRCUTOR
voltage control relay
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
power factor control relay
power factor control relay
computer one series

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CIRCUTOR
over-speed control relay
over-speed control relay
UH 6932

... _1: - It is possible to set a variety of response parameters by means of a 4 bit selection facility from an overriding control unit; - Analog output (2 V to 10 V) corresponding to the current speed; - The possibility ...

earth-leakage control relay
earth-leakage control relay
ELR-3B

Tripping current: 0.03 A - 3 A

ELR-3B Earth Leakage Relays WITHOUT BUILT-IN Toroidal Transformer RELAY WITH ADJUSTABLE DELAY TIME AND SENSITIVITY Type B earth leakage relay. It is suitable for Direct current (DC), ...

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FANOX ELECTRONIC
temperature control relay
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 ...

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FANOX ELECTRONIC
phase sequence control relay
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 ...

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FANOX ELECTRONIC
level control relay
level control relay
AT series

Tripping current: 20, 10 A
Trigger voltage: 220 V

These water level control relays are normally-sensitive controllers that maintain liquids within the set limits between a maximum and minimum level and provide protection for submerged pumps against dry ...

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ATMI
level control relay
level control relay
AT 10 B

Tripping current: 5 A
Trigger voltage: 220 V

... conductivity to control very great differences of level by the greater power of their message. The AT 10 B level control relay is used to control liquids with a high ...

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ATMI
level control relay
level control relay
AT 50 A

Tripping current: 5 A
Trigger voltage: 220 V

... according to the electrical diagram shown, with the probes in the desired positions to obtain control of the slave equipment. How to use: The control relays operate with three probes ...

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ATMI
current control relay
current control relay
RD

Tripping current: 0.03 A - 30 A

Modular residual current relays RD21 series Modular residual current relay. RD23 series Modular residual current relay with leakage current indicator.

current control relay
current control relay
CTD.CTD.A

Toroids for residual current relays CTD - CTD.A series Series of closed and/or openable toroids for measuring residual current. To be paired with the RD residual current relay.

level control relay
level control relay
RL10, RL11, RL12

RL10: Universal relay for filling or emptying RL11: Level relay for emptying RL12: Level relay for filling 1 or 2 sensor levels Adjustable sensitivity 1- or 2-pole relay ...

pulse control relay
pulse control relay
8 A | SIR 8 AN

... installations, such as switch-disconnectors, impulse relays (remote switches) and main switches. Impulse relays, also known as remote switches, are switching relays that switch on due ...

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Doepke Schaltgeräte GmbH
low-level control relay
low-level control relay
CR11C

Tripping current: 1 A
Trigger voltage: 125 V

... range of relay types and versions and associated sockets and accessories. 35 x 35 mm round plug-in relay, 8- or 11-terminals multipole connectors with 2 or 3 contacts up to 10 A and different contact ...

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Releco
trip circuit control relay
trip circuit control relay
TCS series

Tripping current: 6 mA
Trigger voltage: 48, 24 V

... TCS-3 Devices to control of the safety circuit 24-48 VAC/DC Device for permanent control of the MCCB's tripping circuit or safety circuits Introduction Range TCS Product name TCS-1, TCS-3 Product ...

voltage control relay
voltage control relay
RSR series

Trigger voltage: 240, 110 V

RSR-72 Relay for restarting and re-acceleration of motors Static relay for motor re-start and reacceleration The RSR-72 type relay for re-start and reacceleration is deigned to ...

phase control relay
phase control relay
ZCFF01

Tripping current: 8 A
Trigger voltage: 205, 480 V

-Sequence control and phase failure -Detection of regenerated phases of up to 85% of the nominal voltage -No delay in the maneuver when detecting an anomaly -Output contact.... Max. 8A 250 VAC -Format.... 17,5 x ...

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Automatismos Control y Programación, S.L.
voltage control relay
voltage control relay
600PSR

Tripping current: 3, 5 A
Trigger voltage: 154 V - 500 V

• Monitors Phase Sequence,Phase Failure & Phase Asymmetry • 3P - 3W wiring configuration • Relay output: 1 C/O SPDT • Mounting : DIN-rail Brief Specifications Measuring Parameter : Phase Sequence, Phase Failure, ...

level control relay
level control relay
MXL-10

Trigger voltage: 24, 115, 230 V

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 ...

speed control relay
speed control relay
SIPROTEC 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 ...

voltage control relay
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 ...

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ETI
current control relay
current control relay
MA 16

Tripping current: 16 A
Trigger voltage: 230 V

Relay that allows to extend the load of any telephone controller up to a 16 A load. • Operating temp. :0 ºC to +50 ºC • Degree of protection :IP 41 according to EN 60529

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ORBIS TECNOLOGÍA ELÉCTRICA
overload control relay
overload control relay
UER1 series

Tripping current: 0.1 A - 336 A
Trigger voltage: 690 V

The UER1 thermal overload relays range up to an insulation voltage of 690V and an operational voltage of 690V, and can be driven by both 50Hz and 60Hz. They can provide current overload protection and phase loss protection, ...

phase control relay
phase control relay
SEL-352

The SEL-352 relay provides breaker failure protection, breaker control, and breaker monitoring. Features include a cost-saving data recorder and a sophisticated controller to reduce maintenance and manual ...

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Schweitzer Engineering Laboratories
over-voltage control relay
over-voltage control relay
PCS-994

PCS-994 is a frequency-voltage controller, which performs control functions for under-frequency, under-voltage, over-frequency and over-voltage. It can be used to perform load shedding in case of under-frequency or under-voltage ...

plug-in control relay
plug-in control relay

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

The SSRC-04 is a liquid level controller relay. It is specially designed for the level and discharge control of conductive fluids placed in tanks, as seen in industrial plants and domestic tasks. The ...

safety control relay
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 ...

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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.