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Siemens 5SK9011-2KK28 1-Pole Auxiliary Circuit Breaker — 10A

Siemens 5SK9011-2KK28 Auxiliary Circuit Breaker

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ManufacturerSiemens

Part number5SK9011-2KK28

Poles 1

Current 10A

Features Overload Release, Short-Circuit Release

Application Auxiliary Circuits

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12-month warranty

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Veteran-owned

CAGE: 9NK75

Single-Pole Protection Overload and Short-Circuit Release 10A Rating Auxiliary Circuit Focus High Reliability Compact Design

Product description

The Siemens 5SK9011-2KK28 is a versatile single-pole circuit breaker designed for auxiliary circuits, offering comprehensive protection against both overload and short-circuit conditions. Equipped with both overload and short-circuit release mechanisms, it provides robust defense for sensitive control and instrumentation lines. This breaker is rated for 10A, suitable for a wider range of auxiliary circuit applications.

This device is ideal for protecting control power supplies, relays, and other components within automation systems and control panels. Its dual protection features ensure that not only sudden faults but also gradual overloads are detected and interrupted, maintaining system integrity and preventing damage.

As a veteran-owned business, Stanlo Automation specializes in providing high-quality surplus industrial automation parts, including the Siemens 5SK9011-2KK28. We are dedicated to offering reliable components and exceptional customer support to keep your operations running smoothly. Trust Stanlo Automation for your essential automation needs.

Technical specifications

Poles	1
Current	10A
Features	Overload Release, Short-Circuit Release
Application	Auxiliary Circuits
Manufacturer	Siemens
Series	5SK9

Common applications

Control Power Protection

PLC I/O Circuits

Instrumentation Lines

Relay Control Circuits

Automation System Protection

Signaling Devices

Compatible systems

Standard DIN rail mounting systems

Also known as

Siemens 5SK90112KK28 Siemens Auxiliary Breaker 10A

Replaces / compatible with

Suitable for applications requiring both overload and short-circuit protection in auxiliary circuits.

Technical note

Expert tip

The integrated overload protection allows this breaker to safely handle sustained currents slightly above its rating, preventing nuisance trips while still protecting against damaging thermal buildup.

What happens next?

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Frequently asked questions

What types of protection does the Siemens 5SK9011-2KK28 offer?

The Siemens 5SK9011-2KK28 offers dual protection for auxiliary circuits, including both overload release and short-circuit release. This ensures reliable safeguarding against gradual overcurrents and sudden fault conditions.