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Siemens 3RH2122-1AK20 Contactor Relay — 2 NO + 2 NC, 120V AC

Siemens 3RH2122-1AK20 Contactor Relay, 2 NO + 2 NC, 120V AC.

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ManufacturerSiemens

Part number3RH2122-1AK20

Contacts 2 NO + 2 NC

Coil Voltage 120 V AC

Frequency 50/60 Hz

Terminal Type Screw

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12-month warranty

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Veteran-owned

CAGE: 9NK75

2 normally open contacts 2 normally closed contacts 120V AC coil Screw terminal connections Frame size S00

Product description

The Siemens 3RH2122-1AK20 is a contactor relay designed for control circuits, featuring 2 normally open (NO) and 2 normally closed (NC) contacts. It operates with a 120V AC coil at 50/60 Hz, using convenient screw terminals for connections. This relay is built on the compact S00 frame size, ideal for space-constrained enclosures.

This component is frequently employed in various industrial automation applications, including motor control, auxiliary switching functions, and interlock circuits. Industries such as manufacturing, building management systems, and pump control benefit from its reliable switching capabilities.

Stanlo Automation, a veteran-owned business, is your trusted source for surplus and new industrial automation parts. We offer the Siemens 3RH2122-1AK20 with competitive pricing and fast delivery, helping you maintain operational continuity.

Technical specifications

Contacts	2 NO + 2 NC
Coil Voltage	120 V AC
Frequency	50/60 Hz
Terminal Type	Screw
Frame Size	S00

Common applications

Motor control

Control circuits

Automation systems

Building automation

Interlock circuits

Compatible systems

SIRIUS 3RH2 Contactor Relays

Also known as

Siemens SIRIUS contactor relay 3RH21221AK20

Replaces / compatible with

Suitable replacement for Siemens contactor relays with 120V AC coils and S00 frame size. Integrates with SIRIUS 3RH2 series accessories.

Technical note

Expert tip

Verify the incoming voltage is stable at 120V AC to ensure consistent operation of the 3RH2122-1AK20 coil.

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Frequently asked questions

What voltage does the Siemens 3RH2122-1AK20 contactor relay coil operate on?

The Siemens 3RH2122-1AK20 contactor relay coil is designed to operate on a 120V AC power supply, at either 50 Hz or 60 Hz.