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Siemens 5ST3011 Auxiliary Switch: 2 NO Contacts for Circuit Breakers

Siemens 5ST3011 auxiliary switch with 2 NO contacts for circuit breakers.

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ManufacturerSiemens

Part number5ST3011

Contact Configuration 2 NO

For Use With 5SL, 5SY, 5SP Circuit Breakers

Additional Requirement 5ST3805-1 for 5SU1

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Two normally open (NO) contacts Compatible with Siemens 5SL, 5SY, 5SP Signaling capabilities Requires specific coupler for 5SU1 Enhances control system integration

Product description

The Siemens 5ST3011 is an auxiliary switch equipped with two normally open (NO) contacts. It is designed for use with Siemens circuit breaker series including 5SL, 5SY, and 5SP. For integration with the 5SU1 series, the 5ST3805-1 handle coupler is required.

This accessory is used to provide additional signaling outputs, typically for status indication or interlocks in control systems. The two NO contacts offer flexibility in signaling multiple conditions or devices connected to the circuit breaker's state.

Stanlo Automation, a veteran-owned surplus parts provider, offers the Siemens 5ST3011. We are committed to supplying reliable industrial automation components, ensuring your operations benefit from quality surplus inventory.

Technical specifications

Contact Configuration	2 NO
For Use With	5SL, 5SY, 5SP Circuit Breakers
Additional Requirement	5ST3805-1 for 5SU1

Common applications

Industrial Automation

Control Systems

Electrical Panels

Machine Safety

Signaling Circuits

Compatible systems

Siemens 5SL, 5SY, 5SP Circuit Breakers; Siemens 5SU1 Circuit Breakers (with 5ST3805-1 coupler)

Also known as

Siemens 5ST3011 2NO switch Siemens circuit breaker auxiliary 5ST3011 Siemens contact block

Replaces / compatible with

This auxiliary switch is designed as an accessory for Siemens 5SL, 5SY, and 5SP circuit breakers. A separate handle coupler (5ST3805-1) is needed for compatibility with the 5SU1 series.

Technical note

Expert tip

Ensure the 5ST3805-1 handle coupler is used when mounting the 5ST3011 auxiliary switch onto a Siemens 5SU1 circuit breaker.

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Frequently asked questions

What specific Siemens circuit breaker series is the 5ST3011 auxiliary switch designed for?

The Siemens 5ST3011 auxiliary switch is designed for use with Siemens 5SL, 5SY, and 5SP circuit breaker series. For the 5SU1 series, an additional accessory, the 5ST3805-1 handle coupler, is necessary for integration.