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Siemens 5SY7232-8 Miniature Circuit Breaker: 2-Pole, 32A, D-Curve

Siemens 5SY7232-8 2-Pole Miniature Circuit Breaker, 32A

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ManufacturerSiemens

Part number5SY7232-8

Voltage 400V

Breaking Capacity 15kA

Poles 2

Curve Type D

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2-pole circuit protection 15kA short-circuit rating Type D tripping curve 400V operating voltage 32A continuous current

Product description

The Siemens 5SY7232-8 is a 2-pole miniature circuit breaker engineered for robust protection in electrical systems. It is rated for 400V with a significant 15kA breaking capacity. This model utilizes a Type D tripping characteristic, ideal for circuits with high inrush currents such as large motors or transformers, and has a 32A current rating.

This high-performance circuit breaker is commonly employed in industrial environments to safeguard sensitive equipment and electrical installations. Its applications span motor control, power distribution, and protection of high-power devices where substantial temporary overcurrents are expected.

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Technical specifications

Voltage	400V
Breaking Capacity	15kA
Poles	2
Curve Type	D
Current Rating	32A
Width	70mm

Common applications

Motor starting circuits

Industrial machinery

High inrush current applications

Power distribution

Heavy-duty electrical systems

Compatible systems

Standard DIN rail mounting systems

Also known as

Siemens 5SY7232-8 MCB Siemens 32A 2-pole breaker 5SY7 series breaker

Replaces / compatible with

This circuit breaker can replace other Siemens 2-pole Type D miniature circuit breakers with comparable ratings. Refer to manufacturer documentation for specific cross-references.

Technical note

Expert tip

The Type D curve offers a wider tripping range for inrush currents, but ensure it is appropriate for the specific equipment to avoid nuisance tripping or inadequate protection.

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Frequently asked questions

What types of loads is the Siemens 5SY7232-8 with a Type D curve best suited for?

The Siemens 5SY7232-8, with its Type D tripping characteristic, is specifically designed for circuits that experience very high inrush currents. This includes applications like large industrial motors, transformers, and welding equipment, where the breaker can tolerate these momentary surges without tripping unnecessarily.