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Siemens 5SK9011-4KK25 Auxiliary Circuit Breaker

Siemens 5SK9011-4KK25 1-pole circuit breaker for auxiliary circuits, 2A.

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ManufacturerSiemens

Part number5SK9011-4KK25

Type Auxiliary Circuit Breaker

Poles 1

Current Rating 2A

Release Overload + Short-circuit

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CAGE: 9NK75

Overload and short-circuit protection Auxiliary contact (1 NC) 1-pole design 2A rating Through-type connection For auxiliary circuits

Product description

The Siemens 5SK9011-4KK25 is a miniature circuit breaker designed for auxiliary circuits. It features overload and short-circuit release, an auxiliary contact (1 NC), and a through-type connection. This 1-pole breaker is rated for 2A, providing essential protection for control circuits and low-power auxiliary functions.

This type of circuit breaker is vital for protecting control circuits, signaling devices, and other low-current equipment in industrial panels, building automation systems, and machinery. It ensures reliable operation by preventing damage from overloads and short circuits.

Stanlo Automation, a veteran-owned surplus parts distributor, offers the Siemens 5SK9011-4KK25. Source essential protective components for your control systems from a trusted provider dedicated to quality and service.

Technical specifications

Type	Auxiliary Circuit Breaker
Poles	1
Current Rating	2A
Release	Overload + Short-circuit
Auxiliary Contact	1 NC
Connection	Through-type

Common applications

Industrial control panels

Building automation

Machinery control circuits

Signaling systems

Power distribution

Compatible systems

Control panels Auxiliary circuits Low-current equipment

Also known as

Siemens auxiliary breaker Miniature circuit breaker 5SK9011-4KK25 2A breaker

Replaces / compatible with

This is a specific component for auxiliary circuits and is not typically a direct replacement for a different part number unless specified by Siemens.

Technical note

Expert tip

Ensure correct wiring of the auxiliary contact (NC) to your signaling or alarm system for effective monitoring.

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Frequently asked questions

What is the current rating and pole count of the Siemens 5SK9011-4KK25 circuit breaker?

The Siemens 5SK9011-4KK25 is a 1-pole circuit breaker with a current rating of 2A. It is designed for protecting auxiliary circuits and includes overload and short-circuit release.