Siemens
Siemens 3RH1921-1KA11 Side Auxiliary Switch - 1 NO + 1 NC
Siemens 3RH1921-1KA11 side auxiliary switch with 1 NO + 1 NC contacts.
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12-Mo Warranty
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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 configuration
Side mounting
Screw terminal connections
For 3RT1 contactors
Product description
The Siemens 3RH1921-1KA11 is a lateral auxiliary switch designed for side mounting onto Siemens 3RT1 contactors. It provides a 1 normally open (NO) and 1 normally closed (NC) contact configuration, utilizing screw terminals for connection.
This accessory is used to expand the control and signaling capabilities of 3RT1 contactors, commonly found in motor control applications, power distribution units, and automation systems within manufacturing and process industries.
As a veteran-owned surplus parts distributor, Stanlo Automation offers the Siemens 3RH1921-1KA11, ensuring you can find the specific components needed to complete your automation projects.
Technical specifications
| Contacts | 1 NO + 1 NC |
| Mounting | Lateral (Side) |
| Terminal Type | Screw |
| Compatibility | Siemens 3RT1 Contactors |
| Product Type | Auxiliary Switch |
Common applications
Motor control
Control panels
Automation systems
Machine building
Power distribution
Feedback signaling
Compatible systems
Siemens 3RT1 Contactors
Also known as
Siemens 3RH1921-1KA11
SIRIUS side auxiliary switch
Siemens 3RT1 accessory
Replaces / compatible with
This side auxiliary switch is designed to add functionality to Siemens 3RT1 series contactors.
Technical note
Expert tip
This auxiliary switch is specifically designed for side mounting on Siemens 3RT1 contactors, expanding their control capabilities.What happens next?
1
Email confirmation
Immediate receipt acknowledgment sent to you
2
Account manager assigned
Confirms your part's spec and condition
3
Your quote delivered
Tailored to your specific requirements
Frequently asked questions
What contact configuration does the Siemens 3RH1921-1KA11 auxiliary switch have?
The Siemens 3RH1921-1KA11 is a side auxiliary switch with a 1 normally open (NO) and 1 normally closed (NC) contact arrangement.