Siemens Auxiliary Switch: 2NO/2NC, Front Mount
The SIEMENS Auxiliary Switch (MPN 3RH1921-2XA22-0MA0) is a front-mounted auxiliary contact block with a 2NO/2NC contact configuration. Designed for Frame Size S0, it is compatible with SIRIUS 3RT1 contactors from the…
SKU 3G-OTH-38375
Also listed as: 3RH19212XA220MA0 · 3RH1921 2XA22 0MA0
Local availability & support
- Delivery
- Worldwide DHL shipping from Singapore; 7–14 business days door-to-door for most destinations.
- Payment
- Invoicing in USD. Bank transfer (SWIFT) and corporate PO accepted.
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Product Description
The SIEMENS Auxiliary Switch (MPN 3RH1921-2XA22-0MA0) is a front-mounted auxiliary contact block with a 2NO/2NC contact configuration. Designed for Frame Size S0, it is compatible with SIRIUS 3RT1 contactors from the same OEM brand.
Frequently Asked Questions
What is the SIEMENS Auxiliary Switch 3RH1921-2XA22-0MA0 used for?
The SIEMENS Auxiliary Switch 3RH1921-2XA22-0MA0 is used to add extra signal or control contacts to SIRIUS 3RT1 contactors. It provides 2 normally open and 2 normally closed contacts for monitoring motor starters, signaling status, or interlocking circuits in industrial automation and panel-building applications.
What are the specifications of the SIEMENS Auxiliary Switch 3RH1921-2XA22-0MA0?
This SIEMENS auxiliary switch has a 2NO/2NC contact configuration and is front-mounted. It is designed for Frame Size S0 and is compatible with SIRIUS 3RT1 contactors. The manufacturer part number is 3RH1921-2XA22-0MA0. It is a Siemens-branded auxiliary contact block for industrial control panels.
Where to buy the SIEMENS Auxiliary Switch 3RH1921-2XA22-0MA0 worldwide?
You can source the SIEMENS Auxiliary Switch 3RH1921-2XA22-0MA0 through 3G Electric, a global industrial equipment distributor. We handle full logistics, customs clearance, and delivery to worldwide destinations. Contact us for availability and lead time; we supply genuine Siemens components for industrial automation needs.
How to install the SIEMENS Auxiliary Switch 3RH1921-2XA22-0MA0?
To install the SIEMENS auxiliary switch, mount it onto the front of a compatible SIRIUS 3RT1 contactor of Frame Size S0. Ensure the contact block snaps securely into place and the terminals are wired according to your control circuit diagram. Always follow Siemens installation guidelines and de-energize equipment before working.
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Common applications for SiemensSiemens Products
3G Electric supplies Siemens siemens auxiliary contacts. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.
