3RH2131-2KB40

Siemens SIRIUS 3RH2131-2KB40 Coupling Contactor Relay, 24V DC, with built-in diode in the coil.
Siemens SIRIUS 3RH2131-2KB40 Coupling Contactor Relay, 24V DC, with built-in diode in the coil.

Siemens SIRIUS 3RH2131-2KB40 coupling relay, 24V DC, spring terminal, 4 sets of contacts (3NO+1NC), S00 base, suitable for control circuit signal conversion and interlocking, authorized supplier by Kenxin Motor.

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Siemens SIRIUS 3RH2131-2KB40 Coupling Contactor Relay, 24V DC, with built-in diode in the coil.
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The Siemens SIRIUS 3RH2131-2KB40 is a coupling contactor relay. It features a 24V DC coil and a cage-clamp design, providing four sets of auxiliary contacts: three normally open and one normally closed. It also has a built-in suppression diode to protect the PLC output contacts, making it suitable as a signal coupling relay.

Core Product Advantages and Features
3 normally open + 1 normally closed contact combination
It adopts 4 sets of auxiliary contacts, including 3 sets of normally open (NO) and 1 set of normally closed (NC), which are suitable for control circuit signal conversion, interlocking and PLC input/output interface.
Cage Clamp
The spring-loaded terminal design is suitable for control panel wiring where PLC output signals are directly connected.
PLC output interface design
Specifically designed for PLC digital output signals, it can be used as a coupling relay for signal amplification or isolation.
Integration of suppression diodes
Built-in suppression diode (0.7~1.25 times rated voltage) suppresses the surge induced when the coil is de-energized, protecting the PLC output contacts.
project Specification
coil voltage 24V DC
Contact configuration 3 normally open (NO) + 1 normally closed (NC), 4 sets of contacts
Terminal type Cage Clamp
Base size S00 (SIRIUS 3RH2 series)
Rated heating current Ith 10 A
Special features Built-in suppression diode (0.7~1.25 times rated voltage) suppresses the surge induced when the coil is de-energized, protecting the PLC output contacts.

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