Relays

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Relays
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Two-way switches are used in control cabinets and distribution boards for switching small loads on/off or over.
Group switches with center position permit the positions open/stop/closed, for example to control anti-clockwise rotation - Off - clockwise...

Time relays are primarily used in series applications where the use of PLC controls is too labor and cost-intensive....

Manufactured by the reputed company, Siemens Technologies, these devices are perfect for switching of lighting, motors and other electrical devices. When space is of ultimate importance...

This specific device is a Taster 5TE4. It comes complete with a series of control system pushbuttons. These hve up to 20 A during maintained-contact functions and can be used to switch loads in circuits of...

Switching relays are specially used in plats for switching position indicator while checking the plant for enhanced safety. Switching relays contain 5TE9 100 and 5TE9 101...

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The combined differential and distance protection 7SL87 is a universal protection, control and automation device on the basis of the SIPROTEC 5 system.
Due to its high...

The centralized busbar protection SIPROTEC 7SS85 is a selective, safe, and fast protection against busbar short circuits in medium voltage, high-voltage and very high...

The transformer differential protection SIPROTEC 7UT82 is a universal protection, control and automation device on the basis of the SIPROTEC 5 system. It...

The SIPROTEC 7SA6 distance protection relay is a universal relay for protection, control and automation with a grafic display on the basis of the SIPROTEC 4 system.
Its high level of flexibility makes it suitable to be implemented...

The SIPROTEC 7SA6 distance protection relay is a universal relay for protection, control and automation with a grafic display on the basis of the SIPROTEC 4 system. Its high level of flexibility makes it suitable to be implemented...

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Best with regard to signal assessment involving results of security magnetic fuses
Drop-out hold off could be established...

The SCHMERSAL multi-functional safety relay module offers exceptional diagnostics and superior visualization. The module is appropriate...

This device is an SRB 301AN model and it comes from a series of general process...

Multifunctional safety relay module for superior diagnostics and visualisation
Suitable for signal processing of...

The SRB 400C Series possesses two-function safety monitoring module (double evaluation). Level...

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A part of the Moeller® series, this device is an easySafety control relay. Both standard and safety functions can be found in this device. Indeed, these control relays have a great many safety features, such as the emergency-stop and position switches. These provide a high level...

he Eaton ESR5 safety relay is used to monitor safety devices such as Emergency-Stop...

The Control relay easyRelay Moeller® series that includes the easy500, easy700 and easy800...

The EMR4/EMR5 range of measuring and monitoring relays is designed for use in various applications...

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This multi-range timer features an LED status indicator. It can have either...

- Multi-function or mono-function
- Multi-range
- Multi-voltage
-...

Relay or solid state output
Multi-function or mono-function
...

Known as the DIN rail mounted timers or the RTM miniature timers and comes in...

Current transformer fitted by passing a cable through the front
AC current treshold...

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This Looped power supply contact is mainly for monitoring voltage signals. It...

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The F-OK B 400 is an instantaneous, electromagnetic, on-off relay with a 4 double cutout changeover contact in series. It is a high-performance...

This is a unit that works with a time delay that can be programmed from 1 second to 9...

These thyristor solid state relays are piloted directly by our STATOP temperature controllers.
They...

Thyristor solid state relays for switching resistive loads from 8A to 280A, in single-phase.
Direct drive by our STATOP temperature controllers.
DIN rail...

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The 859 series comes with a large variety of relays and opto-couplers that suits any...

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In high power, intermediate and sensitivity; solid state and low profile...

This sensitive DC coil may contain up to 170mW that measures 5 mm wide. The technical...

Pole Changeover Contacts known as 1 Pole opens contact comes in miniature Sugar Cube...

FINDER is the go-to for any piece of equipment requiring precise and accurate...

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The PNOZ X safety relays are made to be sturdy and safe to use. These are used in many safety functions and you only need one product for each function. Each unit has...

Pilz has made this scalable unit that works with an easy to configure body and is highly expandable. This product works with a control...

Electrical safety is the focus on electronic monitoring relays, for example, when monitoring temperature, current, voltage or similar variables. Using electronic relays will reduce...

Growing company PilZ is known for being automation wizard together with its booming PNOZ safety relays on its best functional level. The PNOZ developed a compact...

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ABB mini contactors are compact and powerful contactors. They are ideally suited for applications where reliability...



ABB mini contactors are compact and powerful contactors. They are...


Thermal overload relays are economic electromechanical protection devices for the main circuit. They offer reliable protection for motors in the event of overload...

· 2 c/o (SPDT) contacts
· Single-supply voltage range
· ON-delay (0.05-30 s) adjustable...



CM-WDS is a cycle monitor with watchdog function. It observes if a regularly intermittent pulse is applied to its pulse input.
Characteristics of CM-WDS cycle monitors

·...

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This unit uses a power relay that will manage signals and protect units from...

The FF-SRS5924 Emergency Stop Modules are well designed for use...

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IS Relay Module Series 9172 is specifically created for binary signal and control...

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Multi purpose having relay components appropriate for any purposes. E-stop having cross-fault tracking as well as elective simultaneity tracking. Interconnection of mechanised security fuses as well as fail-safe receptors. With regard to clocked crash-safe receptors out of ifm digital. 2-hand management to EN 574, type...

Multi purpose having relay components ideal for any uses.

Protection components having switch-off hold off, time amounts 0.25...10 secs.
E-stop having cross-fault tracking as well as different simultaneity tracking.
Link regarding mechanised protection fuses and...

IFM multifunctional safety relay with semiconductor outputs feature E-stop with cross-fault and optional simultaneity monitoring. Used for connecting mechanical safety switches and fail-safe sensors, one advantage of the safety relay is allowing...

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This product presents an advanced technology as well as safety and effortless installation. The WEG's 3-pole contractors, aside from easy installation,...

WEG makes three-pole contactors that works with an easy...

Monitoring Relays RPW is a product developed to monitor sensitive electronic circuits that need to be protected from noises, within the line....

The WEG Smart Relay SRW01 low-voltage electric motor management system has reliable technology and network communication capabilities. Its modular concept makes it suitable for applications. The low-voltage electric motors...

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The Johnson Electric product line for smart meters supports with the necessities of the electric power businesses smart grid enterprise. The...

Presenting a revolutionary new product. The Johnson Disconnect relays are top of the line creation. Assembled with state of the art parts and components. The Ledex-EM...

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Relion® REF630 IED is constructed to be world-class for managing utility and distribution substations. It is built to protect, manage as well as measure and supervise at the...

Relion REG630 was specially developed to give protection, control, measuring and supervision of small and medium sized power generators. Since this is part of the ABBs Relion® product line, this means that...

ABB motor protection boasts a comprehensive motor management IED for protection,control,measuring and supervision of medium and large motors in medium industrial power systems.The Motor Protection...

Relion® RET630 is a comprehensive transformer management IED for protection, control, measuring and supervision of power transformers, unit and step-up transformers. RET630 features necessary control functions constituting an ideal solution for transformer bay control. Two predefined configurations to match your typical transformer protection and control specifications are available. The pre-defined...

Relion®
A native IEC 61850 feeder, REF620is an IED perfectly lined up for the defense, limitation, calculation and management of utility and industrial power distribution systems. REF620 offers considerable probabilities in order to custom the mechanisms to feeder defense and management...

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The TURCK analog signal isolators provide safe galvanic separation for all signal types....

Machine and system hazards have decreased significantly with the advancement of present...

The Duo-Touch series are designed with two handed control stations to provide an exceed...

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Pepperl+Fuchs has developed a new system that will revolutionize the safety industry....

Trip amps keep track of limit figures regarding temperature ranges, flows, pressures...

Pepperl-Fuchs standstill and rotational direction monitor has a 1-channel signal conditioner with 24 V DC supply.
...

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These safety magnetic controllers have been certified to be compliant with the performance level D of the EN ISO 14849-1 standards,...

From safety relays to safety switches, the complete range of products needed for your application can be found at Bernstein.

The SCR safety relays reliably evaluate signals including those created by Bernstein's safety switches, position...

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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.

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