Relays

267 companies | 2503 products
Protection relay / overload

WEG makes three-pole...

Control relay

The WEG Smart Relay SRW01 low-voltage electric motor management...

Safety relay

The PNOZ X safety relays are made to be sturdy...

Control relay / safety

he Eaton ESR5 safety relay...

Control relay

The Control relay easyRelay...

Control relay / phase

The EMR4/EMR5 range of measuring...

Emergency stop relay

The FF-SRS5924 Emergency...

Safety relay

This device is an SRB...

Solid-state relay / safety / multifunction

Multifunctional safety relay...

Control relay / safety

The SRB 400C Series possesses...

Control relay / safety

The AES 1102 range of microprocessor...

Phase relay / control

From the makers of top quality innovations, CROUZET...

Voltage relay / control

These control relays serve...

Protection relay / motor

This revolutionary control...

Level relay / control

This exceptional control...

Solid-state relay

These thyristor solid state...

Solid-state relay

Thyristor solid state relays for switching...

Electromechanical relay / plug-in

FINDER is the go-to...

Programmable relay / time

Time relays are primarily used...

Control relay / for electrical appliances / lighting / motor

Manufactured by the reputed company, Siemens Technologies,...

Control relay / distribution

This specific device is a Taster 5TE4. It comes complete...

Switching relay

Switching relays are specially used in plats...

Protection relay / distance / electrical line

Presenting a revolutionary new product. The...

Protection relay / distance / electrical line

Line protection for all voltage levels and a short tripping...

Differential relay / protection / electrical line

The 7SD84 - Differential Protection is a one...

Differential relay / protection / electrical line

Line protection for all voltage levels with...

Electromechanical relay / thermal protection

Thermal overload relays are economic electromechanical...

Single-phase relay / monitoring / current

The highly sophisticated CM-S range in...

Safety relay / for two-hand controls

Multi purpose having relay components ideal for any uses. Protection...

Safety relay / with semiconductor output

IFM multifunctional safety relay with semiconductor outputs feature...

Safety relay

Machine and system hazards...

Safety relay / for two-hand controls

The Duo-Touch series are...

Trip relay

Trip amps keep track of...

Shut-off relay / control / speed

Pepperl-Fuchs standstill and...

Safety relay

From safety relays to safety switches, the complete range of products...

Single-phase relay

This SERIES CZR solid state relay is enabling...

With heatsinks

These affordable Watlow solid state...

Safety relay / configurable

LEUZE MSI-DT Series are designed and developed...

Safety relay / multifunction

The MSI-SR5 Safety Relay...

Safety relay / for two-hand controls

The MSI-2H Safety Relay...

Safety relay / control

The MSI-T are a variety...

How to choose this product

relay

A relay is a control mechanism that activates or deactivates one or several parts of an electrical circuit. The two main categories are electromechanical and solid state relays.

Applications

These devices are used primarily to remotely switch a device or a circuit on or off. Remote electromechanical or electronic switching protects the user from possible danger associated with direct switch or contactor use, and makes possible automated switching. Some relays are used for security and protection. At activation thresholds, relays are used to control current, voltage, or a signal level. Time-delay relays exist as well.

Technologies

Relays exist in mechanical form, with electromagnets moving contacts when energized. Normally open or normally closed relays change position when activated by an electrical signal. Compact, solid-state relays consist of semiconductors and have no moving parts.

How to choose

Choice of a relay depends on intended use. For example, a time-delay relay is activated with a predetermined lapse after receiving a signal. Current strength must also be considered. Solid state relays cannot handle currents of the same strength as electromechanical models. On the other hand, solid state relays offer faster switching speeds.

Subscribe to our newsletter
Thank you for subscribing
There was a problem with your request
Invalid email address

Receive updates on this section every two weeks.

With DirectIndustry you can: Find a nearby distributor | Contact the manufacturer to get an estimate or a price Examine product characteristics and technical specifications | View PDF catalogs and other online documentation