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Siemens 5SL6140-7 1-Pole Miniature Circuit Breaker - 40A

Siemens 5SL6140-7 Miniature Circuit Breaker - 1-pole, C-curve, 40A.

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ManufacturerSiemens

Part number5SL6140-7

Poles 1

Rated Current 40A

Tripping Curve C

Breaking Capacity 6kA

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Veteran-owned

CAGE: 9NK75

Single-pole design C-curve tripping 6kA short-circuit rating Compact and modular DIN rail mountable Enhanced safety

Product description

The Siemens 5SL6140-7 is a high-performance miniature circuit breaker engineered for robust electrical safety. This 1-pole device features a C-curve tripping characteristic, a 40A rated current, and a substantial 6kA breaking capacity at 230/400V. It is designed to protect electrical circuits from overloads and short circuits with precision.

Ideal for industrial and commercial applications, this circuit breaker is commonly installed in distribution boards and control cabinets. It provides essential protection for circuits requiring a higher current rating while maintaining safety standards.

Stanlo Automation, a veteran-owned supplier of surplus industrial automation parts, offers the Siemens 5SL6140-7 at competitive prices. Source your critical components from us and ensure your systems remain operational.

Technical specifications

Poles	1
Rated Current	40A
Tripping Curve	C
Breaking Capacity	6kA
Voltage	230/400V
Frequency	50/60 Hz

Common applications

Industrial power distribution

Commercial building wiring

Motor circuit protection

High-load circuits

Control panels

General purpose wiring

Compatible systems

Standard distribution boards Industrial control systems DIN rail mounting systems

Also known as

Siemens 5SL6 1-pole 40A 5SL61407

Replaces / compatible with

Suitable for replacing older Siemens miniature circuit breakers with similar specifications. Check compatibility for specific models.

Technical note

Expert tip

The C-curve is suitable for loads with moderate inrush currents, such as fluorescent lighting or motor controls, without nuisance tripping.

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Frequently asked questions

What type of overcurrent protection does the Siemens 5SL6140-7 offer?

The Siemens 5SL6140-7 offers protection against both overloads and short circuits. Its C-curve tripping characteristic is designed to handle inrush currents from inductive loads while still providing rapid interruption for dangerous short circuits.