SIRIUS 3RH1 Auxiliary Contact
The 3RH1921-1CA01 is an auxiliary contact block from the Siemens SIRIUS 3RH1 family, used with 3RT1 contactors.
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SIEMENS
Siemens 3RH1921-1CA01 Contactor 1NO 1NC
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$16.07
0 pcs / pack
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PRODUCT DOCUMENTATION
Product Information
Technical specifications, features, applications and purchasing information.
Technical Specifications
| Brand | Siemens |
| Model Number | 3RH1921-1CA01 |
| Product Category | Auxiliary Contact Block |
| Product Family | SIRIUS 3RH1 |
| Contact Configuration | 1 NC |
| Terminal Type | Screw Terminals |
| Mounting Type | Snap-on / Front Mounting |
| Insulation Voltage | 690 V |
| Surge Voltage Resistance | 6 kV |
| Compatible Contactor Sizes | S0 to S12 |
Key Features
1 NC Contact
Provides one normally closed auxiliary contact for control, interlocking, and signaling circuits.
Screw Terminals
Equipped with screw terminals for standard industrial wiring connections.
Front Snap-On Mounting
Snap-on front mounting design for compatible contactors in sizes S0 through S12.
690 V Insulation Voltage
Rated insulation voltage of 690 V and surge voltage resistance of 6 kV for industrial control applications.
Applications
- 3RT1 contactor auxiliary circuits
- Motor starter control interlocking
- Industrial control panel signaling
- Contactor status feedback
- SIRIUS contactor auxiliary expansion
- Relay and contactor logic integration
Purchase Information
We support online purchase of the Siemens 3RH1921-1CA01 Auxiliary Contact Block. If you need to make bulk purchases and inquire about other products, please contact our team to inform us of your purchase requirements. We will provide you with information such as quantity quotations, delivery dates, and transportation methods.
Frequently Asked Questions
What is the Siemens 3RH1921-1CA01? The 3RH1921-1CA01 is an auxiliary contact block for Siemens SIRIUS 3RT1 contactors.
What contact configuration does the 3RH1921-1CA01 have? It has a 1 NC (normally closed) contact configuration.
What terminal type does the 3RH1921-1CA01 use? It uses screw terminals.
Which contactor sizes is the 3RH1921-1CA01 compatible with? It is designed for front mounting on contactors in sizes S0 to S12.
What is the insulation voltage of the 3RH1921-1CA01? The rated insulation voltage is 690 V, with a surge voltage resistance of 6 kV.
What should be checked before ordering? Verify the complete 3RH1921-1CA01 catalog number, compatibility with the specific 3RT1 contactor size, required contact configuration (NC), and mounting position.
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