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Siemens 5SJ4132-8HG42 1-Pole D 32A Circuit Breaker 277V UL 489

Siemens 5SJ4132-8HG42 circuit breaker - 1-pole, 32A, 277V, UL 489, D-curve.

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ManufacturerSiemens

Part number5SJ4132-8HG42

Voltage 277V

Current 32A

Poles 1

Breaking Capacity 10kA

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UL 489 Listed 10kA Interrupting Capacity Type D Trip Curve for Inrush Currents 277V Rated Siemens Quality

Product description

The Siemens 5SJ4132-8HG42 is a 1-pole, Type D circuit breaker designed for applications requiring protection against high inrush currents, operating up to 277V. It features a breaking capacity of 10kA and is rated for 32A. This model complies with UL 489 standards.

This circuit breaker is ideal for protecting equipment with significant inductive loads, such as large motors or transformers, where sudden high current surges are expected. Its Type D curve provides delayed tripping for these inrush conditions while still offering short-circuit protection.

Stanlo Automation, a veteran-owned distributor, offers the Siemens 5SJ4132-8HG42. We specialize in surplus industrial automation parts, ensuring quality and value for your operational needs.

Technical specifications

Voltage	277V
Current	32A
Poles	1
Breaking Capacity	10kA
Curve	D
Standard	UL 489

Common applications

Motor Protection

Transformer Protection

Equipment with High Inrush

Industrial Control

Machinery Safety

Compatible systems

Siemens S200, S2000, and 5SJ4 series accessories

Also known as

Siemens 5SJ4132-8HG42 Siemens 32A D-curve breaker

Replaces / compatible with

Suitable for replacing older Siemens breakers or other brands with similar 1-pole, 32A, 277V D-curve specifications.

Technical note

Expert tip

The 10kA interrupting rating on this 277V breaker is suitable for most standard industrial and commercial distribution panels.

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Frequently asked questions

Why choose a Type D curve breaker like the 5SJ4132-8HG42?

A Type D curve is chosen for loads that experience very high inrush currents upon startup, such as large motors or transformer banks. The D-curve allows for these temporary surges without tripping, while still providing rapid protection against short circuits.