The Siemens SIRIUS Auxiliary Switch – 3RV2901-1E is a genuine accessory designed for use with Siemens 3RV2 Circuit Breakers. This transverse auxiliary switch with 1 NO (Normally Open) + 1 NC (Normally Closed) contact configuration provides electrical status feedback of the circuit breaker position, allowing integration with control systems, monitoring devices, and automation applications.
The Siemens 3RV2901-1E Auxiliary Switch is widely used in motor protection systems, industrial control panels, automation panels, MCC panels, machine control systems, and electrical distribution applications. It enables remote indication and monitoring of circuit breaker operating status, improving system visibility and operational safety.
Designed with Siemens SIRIUS engineering standards, this auxiliary contact accessory offers reliable switching performance, easy installation, and compatibility with Siemens 3RV2 circuit breakers. It is suitable for panel builders, OEM machine manufacturers, electrical contractors, and industrial maintenance professionals.
At SB Smart, we supply genuine Siemens SIRIUS accessories, circuit protection devices, and industrial automation products with competitive pricing, technical support, bulk order assistance, and fast PAN India delivery.
Genuine Siemens SIRIUS auxiliary switch
Designed for Siemens 3RV2 circuit breakers
1 NO + 1 NC auxiliary contact configuration
Transverse mounting design
Screw terminal connection
Suitable for S00, S0, S2, and S3 circuit breaker sizes
Reliable status indication and monitoring
Easy installation and integration
Durable industrial construction
Trusted Siemens quality
Motor Protection Panels
MCC Panels
Industrial Control Panels
Automation Systems
Machine Control Systems
Electrical Distribution Boards
OEM Control Panels
Factory Automation
Industrial Equipment Monitoring
Process Industries
Provides remote circuit breaker status indication
Improves system monitoring capability
Enables integration with PLC and control systems
Enhances operational safety
Reduces troubleshooting time
Simplifies maintenance activities
Reliable performance in industrial environments
Supports efficient automation solutions
100% Genuine Siemens Products
Competitive Industrial Pricing
Expert Technical Support
Bulk Order Assistance
Fast PAN India Delivery
Secure Packaging
Trusted Industrial Electrical Supplier
GST Invoice Available
Responsive Customer Support
The Siemens 3RV2901-1E is an auxiliary switch accessory used with Siemens 3RV2 circuit breakers to provide electrical feedback of breaker status.
No. It is an auxiliary switch accessory used with Siemens 3RV2 circuit breakers for monitoring and control applications.
It provides 1 Normally Open (NO) contact and 1 Normally Closed (NC) contact for status indication and control functions.
It is commonly installed in motor starter assemblies, MCC panels, automation panels, and industrial electrical control systems.
Yes. SB Smart supplies genuine Siemens SIRIUS accessories with competitive pricing, technical support, and fast PAN India delivery.
| Specification | Details |
|---|---|
| Product Name | Auxiliary Contact Block |
| Brand | Siemens |
| Series | SIRIUS 3RV2 |
| Model Number | 3RV2901-1E |
| SKU | 3RV2901-1E |
| Product Type | Auxiliary Contact Block |
| Contact Configuration | 1NO + 1NC |
| Number of Contacts | 2 |
| Mounting Position | Front Mounted (Transverse) |
| Compatible Series | Siemens 3RV2 Motor Protection Circuit Breakers |
| Compatible Sizes | S00, S0, S2, S3 |
| Connection Type | Screw Terminals |
| Contact Type | Instantaneous Auxiliary Contacts |
| Rated Operational Current (AC-15, 230V) | 0.5A |
| Rated Voltage | 230V AC |
| Application | Signaling, Status Indication, Interlocking, PLC Interface |
| Installation Method | Direct Snap-On Mounting |
| Product Family | Siemens SIRIUS Accessories |
| Standards Compliance | IEC/EN 60947-5-1 |
| Protection Rating | IP20 |
| Industrial Applications | MCC Panels, Motor Starters, Automation Systems, Control Panels |
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