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Siemens 3RH2140-1JB40 Coupling Contactor Relay - 24V DC, PLC Compatible

Siemens 3RH2140-1JB40 Coupling Relay, 24V DC, PLC Compatible, Integrated Diode.

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ManufacturerSiemens

Part number3RH2140-1JB40

Contacts 4 NO

Coil Voltage 24 V DC (0.7-1.25*Us)

Integrated Diode Yes

Terminal Type Screw

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4 Normally Open Contacts PLC Output Compatibility 24V DC Coil with Wide Range Integrated Diode Screw Terminals

Product description

The Siemens 3RH2140-1JB40 is a specialized coupling contactor relay designed for interfacing with PLC outputs. It features 4 normally open (NO) contacts and a 24 V DC coil with a voltage range of 0.7-1.25*Us. This model includes an integrated diode for surge suppression and utilizes screw terminals for secure connections. It is built on the S00 frame size and is not expandable with auxiliary switches.

This relay is specifically engineered for applications where a PLC needs to switch higher power loads. Its suitability for PLC outputs and integrated surge protection make it a reliable choice for industrial control systems, including those found in process automation, packaging machinery, and assembly lines.

Stanlo Automation, a veteran-owned supplier of surplus industrial parts, has the Siemens 3RH2140-1JB40 available. Ensure your automation projects are supported by dependable components sourced from Stanlo.

Technical specifications

Contacts	4 NO
Coil Voltage	24 V DC (0.7-1.25*Us)
Integrated Diode	Yes
Terminal Type	Screw
Frame Size	S00
PLC Compatible	Yes
Manufacturer	Siemens

Common applications

PLC interface

Automation control

Machine building

Packaging machinery

Assembly lines

Compatible systems

Siemens PLC systems, various automation controllers

Also known as

Siemens 3RH2140-1JB40 relay Siemens PLC coupling relay 3RH2 coupling relay

Replaces / compatible with

This part is a Siemens 3RH2 series coupling contactor relay. It is designed for direct interfacing with PLC outputs and is compatible with Siemens control systems.

Technical note

Expert tip

Note that the 3RH2140-1JB40 is not expandable with auxiliary switches, so ensure its 4 NO contacts meet your application's requirements.

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Frequently asked questions

What makes the Siemens 3RH2140-1JB40 suitable for PLC outputs?

The Siemens 3RH2140-1JB40 is designed with a specific coil voltage range and integrated surge suppression, making it ideal for direct connection to PLC outputs without requiring additional interface modules.