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3RH1921-1CA01
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3RH1921-1CA01
SIEMENS
(No reviews yet)

front-side auxiliary switch, 1 NC contact, screw terminal, for contactors 3RT1

Cat No. 3RH1921-1CA01
Category Power Contactor Accessories
Stock In Stock
Condition Brand New, Sealed Packaging
Product Type Power Contactor Accessories

In Stock — 54 Qty

$8.16
Quantity Expected Delivery
54 Units 25 Business Days

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Technical Specification

SIEMENS 3RH1921-1CA01 Power Contactor Accessories Technical Specification

Power Contactor Accessories
Contacts 1NC
Other Details 1NC
Range of Product —
Sub Family Add-On Block
Type Aux contact block

Product Details

<p><span style="color: rgb(51, 51, 51); font-family: Arial, Geneva, Helvetica, sans-serif; font-size: 11px;">front-side auxiliary switch, 1 NC contact, screw terminal, for contactors 3RT1</span></p>

Product Dimensions

SIEMENS 3RH1921-1CA01 dimensions and weight

Dimensions (L × W × H)
Length 11.4 cm
Width 4.7 cm
Height 5.5 cm
Weight
Net Weight 0.018 kg

Dimensions are approximate. For precise dimensional drawings, contact us.

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Frequently Asked Questions for 3RH1921-1CA01

The Siemens 3RH1921-1CA01 accessory enhances the performance, safety, and control flexibility of Siemens power contactors. These accessories may include auxiliary contacts, surge suppressors, mechanical interlocks, coil modules, and terminal covers.
They are used in MCC panels, industrial control panels, motor starters, automation systems, and any application requiring enhanced signalling, interlocking, or protection with Siemens power contactors.
It enables additional functions such as remote signalling, improved arc suppression, mechanical interlocking between contactors, noise reduction, or safer wiring termination depending on the accessory type.
Check compatibility with the Siemens contactor series, mounting type, electrical rating (if applicable), auxiliary contact configuration, and functional requirements of the control system.
Follow Siemens installation instructions, ensure correct mechanical alignment, secure wiring/terminal tightening, and verify functional testing for electrical accessories such as auxiliary blocks or coil modules.
Pricing varies depending on accessory type and series compatibility. Visit Electrihub for updated Siemens power contactor accessory pricing and stock availability.
The official Siemens datasheet for 3RH1921-1CA01 is available on Electrihub, including wiring diagrams, specifications, and installation instructions.
The price of SIEMENS 3RH1921-1CA01 Power Contactor Accessories depends on specifications, availability, and market conditions. You can check the latest GST-inclusive price on Electrihub India, which provides genuine products, transparent billing, and PAN India delivery.
Yes. RAS Electrihub Private Limited provides PAN India delivery with reliable logistics, safe packaging, and doorstep delivery across all states and union territories.
Yes. RAS Electrihub Private Limited issues GST-compliant invoices and also supports PO-based invoicing for businesses, contractors, and organizations across India.
Yes. RAS Electrihub Private Limited operates as an ISO-certified organization, ensuring quality sourcing, authentic products, and standardized procurement and delivery processes.

Reviews & Ratings

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Manish Pandey Sep 29, 2026

Installed this SIEMENS 3RH1921-1CA01 Power Contactor Accessories for our 3-phase motor starter feeder. Very crisp coil pick-up, zero contact chatter, and sturdy mechanical latching. Sourced directly from Electrihub India with valid GST invoice.

Tushar Dhillon Sep 29, 2026

We build electrical control panels in Bhosari MIDC and ordered a batch of SIEMENS 3RH1921-1CA01. Electrihub India gave us much better commercial rates than offline stockists. Genuine SIEMENS quality delivered straight to our workshop.

Satish Swaminathan Sep 29, 2026

Operating this SIEMENS 3RH1921-1CA01 on a continuous duty motor feeder. Smooth switching performance and great thermal endurance. Electrihub India packed it securely in bubble wrap. Very happy with the purchase.

Prasenjit Patil Sep 29, 2026

Replaced an old worn contactor in our plant MCC panel with this genuine SIEMENS 3RH1921-1CA01. Terminal screws take full recommended torque without stripping. Delivered quickly and safely by Electrihub India.

Satish Patil Sep 29, 2026

Received the SIEMENS 3RH1921-1CA01 in original sealed box with company test certificate. Contact resistance is well within tolerance. Electrihub India has become our dependable go-to store for all switchgear.

Steven Hall Dec 17, 2025

Perfect 3RH1921-1CA01 for reliable contactor control.

Steven Hall Dec 17, 2025

Upgraded to SIEMENS 3RH1921-1CA01 for enhanced contactor functionality. The 3RH1921-1CA01 performance has exceeded all expectations.

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