Home › Manufacturers › Siemens › 3RH1921-1JA11

Siemens

Siemens 3RH1921-1JA11 Second Lateral Auxiliary Switch - 1 NO, 1 NC

Siemens 3RH1921-1JA11 lateral auxiliary switch with 1 NO and 1 NC contact.

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

In Stock — Ready to Ship

ManufacturerSiemens

Part number3RH1921-1JA11

Contacts 1 NO, 1 NC

Mounting Lateral (Second side)

Terminal Type Screw

For use with Siemens 3RT1 Contactors

Get a price for 3RH1921-1JA11

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

1 Normally Open (NO) and 1 Normally Closed (NC) contact Screw terminals for secure wiring Designed for second lateral mounting on 3RT1 contactors Extends contactor functionality Durable Siemens construction

Product description

The Siemens 3RH1921-1JA11 is a second lateral auxiliary switch designed for side mounting on Siemens 3RT1 series contactors. It provides one normally open (NO) and one normally closed (NC) contact, utilizing screw terminals for secure electrical connections. This switch is intended for the opposite side compared to the 'first lateral' auxiliary switch.

This auxiliary switch allows for expanded control and monitoring capabilities of Siemens 3RT1 contactors. Its dual NO/NC contact configuration is valuable in applications requiring intricate logic, such as in motor control centers, automated manufacturing lines, and building management systems, where precise state feedback is necessary.

As a surplus industrial parts distributor, Stanlo Automation is pleased to offer the Siemens 3RH1921-1JA11. We are a veteran-owned business dedicated to providing reliable automation components. When you source from Stanlo, you benefit from competitive pricing and dependable service for your industrial needs.

Technical specifications

Contacts	1 NO, 1 NC
Mounting	Lateral (Second side)
Terminal Type	Screw
For use with	Siemens 3RT1 Contactors
Series	3RH19

Common applications

Motor control systems

Automation panels

Machine safety circuits

Industrial control

Building automation

Process control

Compatible systems

Siemens 3RT1 Contactors

Also known as

Siemens 3RH1921-1JA11 side auxiliary Siemens 3RT1 secondary lateral switch 3RH1921-1JA11 Siemens control contact

Replaces / compatible with

Provides additional NO and NC auxiliary contacts for the second lateral mounting position on Siemens 3RT1 contactors, complementing other accessories.

Technical note

Expert tip

Verify compatibility with other side-mounted accessories on the 3RT1 contactor, as the 'second lateral' position may have specific spatial constraints.

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

Can the Siemens 3RH1921-1JA11 auxiliary switch be mounted on either side of a 3RT1 contactor?

The 3RH1921-1JA11 is specifically designed for the 'second lateral' mounting position on Siemens 3RT1 contactors. While the 'first lateral' (3RH1921-1EA11) mounts on the opposite side, ensure you select the correct part for the desired mounting location to avoid interference with other accessories.