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Siemens 3RH1140-1BB40 4 NO DC Contactor Relay

Siemens 3RH1140-1BB40 Contactor Relay, 4 NO, 24V DC

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ManufacturerSiemens

Part number3RH1140-1BB40

Contact Configuration 4 NO

Coil Voltage 24V DC

Terminal Type Screw terminal

Size S00

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4 NO auxiliary contacts 24V DC coil Screw terminals Size S00 SIRIUS 3RH11 series

Product description

The Siemens 3RH1140-1BB40 is a contactor relay from the SIRIUS 3RH11 series, featuring 4 normally open (NO) auxiliary contacts. It is designed for 24V DC coil operation and employs screw terminals for secure and reliable electrical connections. This Size S00 relay provides consistent performance in DC control circuits and automation systems.

This 4 NO DC contactor relay is ideal for applications requiring DC control voltages, such as in specialized industrial machinery, control panels, and automation systems where DC signaling or interlocking is needed. Its robust construction ensures reliable operation.

Stanlo Automation, a veteran-owned surplus industrial parts distributor, offers the Siemens 3RH1140-1BB40. We provide access to quality surplus components, helping you achieve cost savings while maintaining operational efficiency.

Technical specifications

Contact Configuration	4 NO
Coil Voltage	24V DC
Terminal Type	Screw terminal
Size	S00
Series	SIRIUS 3RH11

Common applications

DC control circuits

Automation systems

Control panels

Industrial machinery

Signaling

Interlocking

Compatible systems

Compatible with DC control systems and automation panels requiring 4 normally open auxiliary contacts.

Also known as

Siemens Contactor Relay 3RH1140-1BB40 SIRIUS 3RH11 3RH1140-1BB40 Siemens 24V DC 4 NO Relay

Replaces / compatible with

This is a phased-out product. The preferred successor is the Siemens 3RH2140-1BB40.

Technical note

Expert tip

The screw terminals on this Size S00 relay ensure a secure and reliable connection for the 24V DC coil, making it robust for use in industrial DC control applications.

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Frequently asked questions

What type of control voltage is used by the Siemens 3RH1140-1BB40 contactor relay?

The Siemens 3RH1140-1BB40 contactor relay is designed for DC control circuits and uses a 24V DC coil voltage. This makes it suitable for applications that specifically require a DC power source for their control functions.