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Siemens 5ST301AS Auxiliary Switch for Miniature Circuit Breakers

Siemens 5ST301AS auxiliary switch with 1 NO + 1 NC contacts for MCBs.

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ManufacturerSiemens

Part number5ST301AS

Contact Configuration 1 NO + 1 NC

For Use With Miniature Circuit Breakers

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12-month warranty

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Veteran-owned

CAGE: 9NK75

1 NO and 1 NC contact setup Designed for Siemens MCBs Facilitates remote status monitoring Robust and reliable Easy integration

Product description

The Siemens 5ST301AS is an auxiliary switch designed for seamless integration with Siemens miniature circuit breakers (MCBs). It provides a standard configuration of one normally open (NO) and one normally closed (NC) contact, enabling essential status signaling.

This type of auxiliary switch is crucial for building automation, control panel design, and machine safety systems, where remote monitoring of circuit breaker status is required. Its reliable operation ensures accurate feedback to control systems.

As a veteran-owned surplus parts distributor, Stanlo Automation is committed to providing the Siemens 5ST301AS and other industrial automation components. We offer quality surplus parts to meet your budgetary and operational needs.

Technical specifications

Contact Configuration	1 NO + 1 NC
For Use With	Miniature Circuit Breakers

Common applications

Industrial Control Systems

Building Automation

Electrical Monitoring

Machine Safety

Control Panels

Compatible systems

Siemens Miniature Circuit Breakers (compatible models)

Also known as

Siemens 5ST301AS MCB switch Siemens signaling auxiliary contact 5ST301AS Siemens auxiliary module

Replaces / compatible with

This auxiliary switch is designed for compatibility with specific Siemens miniature circuit breaker models that accept auxiliary switch attachments.

Technical note

Expert tip

Ensure proper mechanical engagement with the compatible Siemens miniature circuit breaker mechanism for correct and reliable operation of the 5ST301AS.

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Frequently asked questions

What are the contact types provided by the Siemens 5ST301AS auxiliary switch?

The Siemens 5ST301AS auxiliary switch provides one normally open (NO) contact and one normally closed (NC) contact. This standard configuration is widely used for signaling the operational state of miniature circuit breakers.