Altech Industrial Relays span a wide offering: from photovoltaic/EV relays (RS series) to full-featured electromagnetic relays (R2, R3, R4 series and variants), miniature relays (RM series), slimline interface relays (RM699B, RSR30), and subminiature/special modules (PI6, PIR6W, etc.).
One notable innovation is their bistable (energy-saving) relay series (R2B, R3B, R4B), which require power only to switch states and hold their position magnetically without continuous coil energization.
Key features and capabilities include:
Altech’s industrial relays cater to applications in automation, control systems, safety circuits, power switching, and more—offering both conventional and advanced relay types to meet diverse design and performance needs.
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Industrial electromagnetic relays are used mainly in industrial and power automation applications, in signaling controls, safety and protection systems and control and electric drives systems.
Miniature electromagnetic relays are used in many interface applications, standard automation projects, lighting control systems, emergency lighting applications, building application projects, food processing equipment control and many other electrical system applications.
Slimline interface relays are used for PLC system and industrial automation applications, panel builders, machinery builders, time relays, office equipment and other applications that require a high switching capability in a small space.
Subminiature electromagnetic relays are used for PLC systems and industrial automation applications, panel builders, equipment builders and other applications that require a high switching capability in a small space. The Altech slim line interface relays can be used as a universal interface between the controller and the actuator to switch loads between 1 mA and 6A. They are available with electromechanical contacts or solid state configuration. Installation time is greatly reduced when a pre-assembled relays and sockets combination is used. Replacement relays and sockets are available from stock. Additional accessories include colored coded jumpers, spacers and markers (unmarked or marked based on the customer specification) for identification purposes.
Compact relays with general application, featuring cadmium-free contacts and AC/DC coils. These relays can be used with plug-in sockets, mounted on a 35 mm rail, or on a panel. They come with standard features such as a mechanical indicator and a lockable front test button. Additionally, relays can be equipped with test buttons (without latching) and plugs. These relays adhere to the railway standards set by AUCOTEAM GmbH Berlin.
The R2B, R3B, and R4B bistable relays expand the R2, R3, and R4 family with energy-saving functionality. Unlike traditional relays that require continuous coil power, these bistable relays only use energy during switching, maintaining two stable states (open or closed). They are compatible with R2N, R3N, and R4N sockets, operate on DC supply, and feature permanent magnet design for continuous operation.
Applications include:
Industrial automation (motors, pumps, equipment)
Lighting control (single-pulse switching)
Building management (curtains, doors, appliances)
HVAC (fans, dampers, components)
Remote control systems
Timer-based applications
The new addition to the R2, R3 and R4 type relay is the R2B, R3B, R4B series relays, thanks to their bistability function, enable the reduction of energy consumption in the applications in which they are used. In traditional relays, current must be supplied to the electromagnet throughout the relay's operation to create a magnetic field and maintain the attractive force on the jumper and contacts. In bistable relays, on the other hand, power is only required during state changes (on/off). Thus, the new series of relays eliminates the need to continuously power the coil during operation. | |
The most important properities
Where to use industrial bistable relay
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