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Siemens 5SY4318-7 Miniature Circuit Breaker — 3-Pole, 15A, C Curve

Siemens 5SY4318-7 Miniature Circuit Breaker, 3-Pole, 15A, C Curve

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ManufacturerSiemens

Part number5SY4318-7

Voltage 400V AC

Current 15A

Poles 3

Breaking Capacity 10kA

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12-month warranty

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Veteran-owned

CAGE: 9NK75

3-pole protection C trip curve 15A current rating 10kA fault current 400V AC

Product description

The Siemens 5SY4318-7 is a 3-pole miniature circuit breaker offering robust protection for electrical circuits. It features a C trip curve, a 15A nominal current, and a 10kA breaking capacity at 400V. The device measures 70mm in width for standard panel mounting.

This circuit breaker is well-suited for applications with moderate inrush currents, such as motor control, lighting systems, and general power distribution in industrial and commercial environments. It provides reliable protection against overloads and short circuits.

Stanlo Automation, a veteran-owned surplus parts distributor, provides access to essential components like the Siemens 5SY4318-7. We offer quality, value, and dependable service for your automation needs.

Technical specifications

Voltage	400V AC
Current	15A
Poles	3
Breaking Capacity	10kA
Trip Curve	C
Width	70mm

Common applications

Industrial Power

Motor Circuits

Lighting Systems

Control Panels

Commercial Distribution

Compatible systems

Industrial electrical panels Motor control circuits General automation systems

Also known as

Siemens 5SY43187 Siemens 15A C curve breaker

Replaces / compatible with

The 5SY4318-7 is a Siemens 5SY series circuit breaker. It is suitable for replacing 15A, 3-pole breakers with C-curve characteristics in industrial and commercial applications.

Technical note

Expert tip

The 70mm width allows for standard DIN rail mounting in most industrial electrical enclosures and control cabinets.

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Frequently asked questions

What is the difference between the 5SY4316-7 and 5SY4318-7 Siemens breakers?

The primary difference is the current rating: the 5SY4316-7 is rated for 16A, while the 5SY4318-7 is rated for 15A, though both are 3-pole, 400V, 10kA C-curve miniature circuit breakers. The choice depends on the specific load requirements of the circuit being protected.