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Siemens 3RH2140-1AK20 4 NO Contactor Relay - 120V AC

Siemens 3RH2140-1AK20 Contactor Relay with 4 NO contacts.

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ManufacturerSiemens

Part number3RH2140-1AK20

Type Contactor Relay

Contacts 4 NO

Coil Voltage 120V AC

Frequency 50/60 Hz

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Response within 1 business hour

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12-month warranty

All units tested

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Same-day dispatch

Order by 2pm CST

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Worldwide delivery

US, EU, Asia, Middle East

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Veteran-owned

CAGE: 9NK75

4 normally open contacts 120V AC coil Screw terminals Frame size S00 Reliable SIRIUS performance

Product description

The Siemens 3RH2140-1AK20 is a 4 NO contactor relay designed for 120V AC operation. Featuring screw terminals for secure and efficient wiring, this relay is built with the quality and reliability expected from Siemens' SIRIUS line. It belongs to the S00 frame size, offering a compact footprint for integration into various control systems.

This relay is ideal for applications requiring the switching of multiple circuits, commonly found in motor control, lighting control, and general automation tasks in industrial and commercial environments. The four normally open contacts provide versatility for different circuit configurations.

Stanlo Automation, a veteran-owned supplier of surplus industrial automation components, is pleased to offer the Siemens 3RH2140-1AK20. We are committed to providing quality parts and exceptional service to meet your operational needs.

Technical specifications

Type	Contactor Relay
Contacts	4 NO
Coil Voltage	120V AC
Frequency	50/60 Hz
Terminals	Screw
Frame Size	S00

Common applications

Motor control

Lighting control

Automation panels

Control circuits

Switching multiple loads

Compatible systems

North American control panels 120V AC control circuits Automation systems

Also known as

Siemens 3RH2140-1AK20 SIRIUS Contactor Relay

Replaces / compatible with

This relay is suitable for replacing existing Siemens contactor relays with 120V AC coils and 4 NO configurations, or for new panel designs.

Technical note

Expert tip

The 120V AC coil of the 3RH2140-1AK20 is common in North American electrical installations, making it a versatile choice.

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Frequently asked questions

Can the Siemens 3RH2140-1AK20 be used in panels designed for 110V AC control?

Yes, the Siemens 3RH2140-1AK20, rated for 120V AC, is generally compatible with 110V AC control systems, as the voltage difference is minimal and within typical operating tolerances for many AC control circuits. Always verify system requirements for precise compatibility.