1NO+1NC Auxiliary Switch
The 3RV1901-1E provides one normally open and one normally closed contact in a single transverse auxiliary switch module.
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SIEMENS
Siemens 3RV1901-1E Circuit Breaker
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$20.12
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PRODUCT DOCUMENTATION
Product Information
Technical specifications, features, applications and purchasing information.
Technical Specifications
| Brand | Siemens |
| Model Number | 3RV1901-1E |
| Product Category | Circuit Breaker |
| Accessory Type | Auxiliary Switch |
| Contact Configuration | 1 Normally Open + 1 Normally Closed (1NO+1NC) |
| Mounting Position | Transverse (Front) |
| Compatible Circuit Breaker Sizes | S00, S0, S2, S3 |
| Number of Poles | 2 |
Key Features
Transverse Front Mounting
Mounts transversely on the front of compatible circuit breakers, offering an alternative orientation for wiring and panel layout.
Wide Size Compatibility
Compatible with Siemens 3RV1 circuit breakers in sizes S00, S0, S2, and S3.
Dual Contact Configuration
Combines both NO and NC contacts in one accessory, supporting signalling and interlocking functions without multiple modules.
Two-Pole Module
The auxiliary switch is configured as a two-pole module for control circuit applications.
Applications
- Status signalling for Siemens 3RV1 circuit breakers
- Motor starter protector auxiliary circuits
- Interlocking and control logic in industrial panels
- Fault or position indication in electrical distribution
- Maintenance and expansion of existing SIRIUS 3RV1 installations
- General industrial control panel auxiliary switching
Purchase Information
We support online purchase of the Siemens 3RV1901-1E Circuit Breaker. 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 3RV1901-1E? The 3RV1901-1E is a transverse auxiliary switch with one normally open and one normally closed contact, designed for Siemens 3RV1 circuit breakers.
What contact configuration does it provide? It provides one normally open (NO) and one normally closed (NC) contact.
How is it mounted? It is mounted transversely on the front of the circuit breaker.
Which circuit breaker sizes is it compatible with? It is compatible with sizes S00, S0, S2, and S3 of the 3RV1 series.
How many poles does the auxiliary switch have? It has two poles.
What is the primary use of this auxiliary switch? It is used for status signalling, interlocking, or control logic in circuits associated with the circuit breaker.
Can it provide both NO and NC functions simultaneously? Yes, the module includes one contact of each type.
What is the mounting orientation? The mounting orientation is transverse (front-mounted).
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