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Siemens 3RH1140-1AK60 4 NO Contactor Relay

Siemens 3RH1140-1AK60 Contactor Relay, 4 NO, 110/120V AC

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ManufacturerSiemens

Part number3RH1140-1AK60

Contact Configuration 4 NO

Coil Voltage 110V AC (50 Hz) / 120V AC (60 Hz)

Terminal Type Screw terminal

Size S00

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4 NO auxiliary contacts Dual voltage coil (110/120V AC) Screw terminals Size S00 SIRIUS 3RH11 series

Product description

The Siemens 3RH1140-1AK60 is a contactor relay from the SIRIUS 3RH11 series, featuring 4 normally open (NO) auxiliary contacts. It is designed for dual-voltage operation with a 110V AC coil at 50 Hz or a 120V AC coil at 60 Hz, and uses screw terminals for secure connections. This Size S00 relay ensures dependable performance in a variety of AC control applications.

This relay is ideal for control circuits and automation systems where multiple NO contacts are needed, and its dual-voltage capability offers flexibility for international installations or sites with varying power frequencies. Applications include motor control, signaling, and general automation tasks.

Stanlo Automation, a veteran-owned business, offers surplus industrial automation parts like the Siemens 3RH1140-1AK60. We provide cost-effective solutions and readily available stock to meet your automation component needs.

Technical specifications

Contact Configuration	4 NO
Coil Voltage	110V AC (50 Hz) / 120V AC (60 Hz)
Terminal Type	Screw terminal
Size	S00
Series	SIRIUS 3RH11

Common applications

Motor control

Control circuits

Automation systems

Signaling

Machine building

Industrial panels

Compatible systems

Compatible with control systems and automation panels requiring 4 normally open auxiliary contacts with a 110/120V AC coil.

Also known as

Siemens Contactor Relay 3RH1140-1AK60 SIRIUS 3RH11 3RH1140-1AK60 Siemens 110V/120V AC 4 NO Relay

Replaces / compatible with

This is a phased-out product. The preferred successor is the Siemens 3RH2140-1AK60.

Technical note

Expert tip

Utilizing screw terminals, this Size S00 relay provides a reliable and secure connection for the 110/120V AC coil, ensuring consistent performance in automation applications.

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Frequently asked questions

What are the coil voltage options for the Siemens 3RH1140-1AK60 contactor relay?

The Siemens 3RH1140-1AK60 contactor relay is designed to operate with a dual-voltage coil. It can be powered by 110V AC at 50 Hz or 120V AC at 60 Hz, offering flexibility for different power supply conditions.