Home › Manufacturers › Siemens › 3RH2921-1DA11

Siemens

Siemens 3RH2921-1DA11 SIRIUS Lateral Auxiliary Switch

Siemens 3RH2921-1DA11 SIRIUS Lateral Auxiliary Switch with 1 NO + 1 NC contacts.

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

In Stock — Ready to Ship

ManufacturerSiemens

Part number3RH2921-1DA11

Contact Configuration 1 NO + 1 NC

Terminal Type Screw

Mounting Lateral

Compatibility Siemens 3RT2, 3RH2

Get a price for 3RH2921-1DA11

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 NO + 1 NC contact configuration Screw terminals for secure connection Lateral mounting Designed for SIRIUS 3RT2 contactors and 3RH2 contactor relays Expands control circuit functionality

Product description

The Siemens 3RH2921-1DA11 is a lateral auxiliary switch designed for use with 3RT2 contactors and 3RH2 contactor relays. It features one normally open (NO) and one normally closed (NC) contact, utilizing screw terminals for secure connections. This auxiliary switch expands the control circuit capabilities of your Siemens contactors and relays.

This component is ideal for applications in industrial automation, motor control, and control panel building where additional signaling or interlocking functions are required. Its compatibility with the SIRIUS 3RT2 and 3RH2 series makes it a versatile addition to various machinery and systems.

Source your industrial automation components from Stanlo Automation, a veteran-owned business committed to quality and reliability. We offer a wide selection of surplus parts, ensuring you find the right solutions for your MRO needs.

Technical specifications

Contact Configuration	1 NO + 1 NC
Terminal Type	Screw
Mounting	Lateral
Compatibility	Siemens 3RT2, 3RH2
Series	SIRIUS 3RH29

Common applications

Industrial Automation

Motor Control Panels

Control Systems

Machine Building

Electrical Enclosures

Compatible systems

Siemens 3RT2.2 Siemens 3RT2.3 Siemens 3RT2.4 Siemens 3RH2

Also known as

Siemens 3RH29211DA11 SIRIUS 3RH2921-1DA11 Siemens Auxiliary Contact 3RH2921-1DA11

Replaces / compatible with

This auxiliary switch is designed to be compatible with Siemens 3RT2 contactors and 3RH2 contactor relays.

Technical note

Expert tip

The 3RH2921-1DA11 is designed for lateral mounting and is not compatible with previous generation 3RT1 series contactors.

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

What type of terminals does the Siemens 3RH2921-1DA11 auxiliary switch use?

The Siemens 3RH2921-1DA11 auxiliary switch uses screw terminals. These provide a secure and reliable connection for your control wiring.