Home › Manufacturers › Siemens › 3RH1921-1CA10

Siemens

Siemens 3RH1921-1CA10 Front-Side Auxiliary Switch

Siemens 3RH1921-1CA10 front-side auxiliary switch with 1 NO contact.

● In Stock 12-Mo Warranty Same-Day Dispatch Ships Worldwide 🎖 Veteran-Owned

In Stock — Ready to Ship

ManufacturerSiemens

Part number3RH1921-1CA10

Mounting Front-side

Contacts 1 NO

Terminal Type Screw terminal

Compatible with Siemens 3RT1 contactors

Get a price for 3RH1921-1CA10

Response within 1 business hour

🛡

12-month warranty

All units tested

⚡

Same-day dispatch

Order by 2pm CST

🌐

Worldwide delivery

US, EU, Asia, Middle East

🎖

Veteran-owned

CAGE: 9NK75

Front-side mounting 1 NO contact Screw terminals Designed for 3RT1 contactors Easy installation

Product description

The Siemens 3RH1921-1CA10 is a front-side mounted auxiliary switch designed for Siemens 3RT1 contactors. It features screw terminals for easy and secure wiring and is equipped with one normally open (NO) contact. This auxiliary switch is used to expand the functionality of the 3RT1 contactors by adding control or signaling circuits.

This auxiliary switch is ideal for applications requiring additional monitoring or control contacts for 3RT1 contactors. It is commonly used in motor control centers, control panels, and various industrial automation systems across sectors such as manufacturing, food and beverage, and water treatment.

Stanlo Automation, a veteran-owned surplus parts distributor, offers the Siemens 3RH1921-1CA10. We specialize in providing reliable components for industrial automation, ensuring you can find the parts needed to keep your operations running smoothly.

Technical specifications

Mounting	Front-side
Contacts	1 NO
Terminal Type	Screw terminal
Compatible with	Siemens 3RT1 contactors

Common applications

Motor control

Control panels

Automation systems

Signaling circuits

Interlocking circuits

Machine monitoring

Compatible systems

Siemens 3RT1 contactors

Also known as

Siemens 3RH1921-1CA10 auxiliary contact Siemens 3RT1 auxiliary switch

Replaces / compatible with

This auxiliary switch is designed to be attached to Siemens 3RT1 series contactors to add additional contacts.

Technical note

Expert tip

Ensure the 3RH1921-1CA10 is correctly seated on the front of the 3RT1 contactor before tightening the mounting screws for a secure connection.

What happens next?

Email confirmation

Immediate receipt acknowledgment sent to you

Account manager assigned

Confirms your part's spec and condition

Your quote delivered

Tailored to your specific requirements

Frequently asked questions

How many normally open (NO) contacts does the Siemens 3RH1921-1CA10 have?

The Siemens 3RH1921-1CA10 front-side auxiliary switch is equipped with one normally open (NO) contact and utilizes screw terminals for connection.