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Siemens HGB3B030B 3-Pole 30A Miniature Circuit Breaker

Siemens HGB3B030B 3-pole 30A miniature circuit breaker.

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ManufacturerSiemens

Part numberHGB3B030B

Poles 3

Amperage Rating 30A

Voltage Rating 480Y/277V AC

Breaking Capacity 10kA

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12-month warranty

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Veteran-owned

CAGE: 9NK75

3-pole design 30A current rating Thermal-magnetic protection DIN rail mountable High breaking capacity

Product description

The Siemens HGB3B030B is a 3-pole miniature circuit breaker (MCB) designed for overcurrent protection in commercial and industrial applications. It features a 30 Ampere rating and a thermal-magnetic tripping mechanism, offering dependable circuit safeguarding. This breaker is built to meet stringent safety standards.

Ideal for protecting branch circuits, lighting systems, and motor loads, the HGB3B030B is commonly found in electrical panels, control cabinets, and power distribution units. Its compact size and reliable performance make it a preferred choice for many installations.

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Technical specifications

Poles	3
Amperage Rating	30A
Voltage Rating	480Y/277V AC
Breaking Capacity	10kA
Trip Type	Thermal-Magnetic

Common applications

Residential electrical panels

Commercial building distribution

Industrial branch circuits

Lighting circuits

Motor protection

Compatible systems

Standard electrical panels DIN rail mounting systems Industrial and commercial power distribution

Also known as

Siemens HGB Series breaker HGB3B030B MCB 30 Amp Siemens 3-pole breaker

Replaces / compatible with

Direct replacement for other Siemens HGB series breakers with the same specifications. Suitable for standard DIN rail mounting.

Technical note

Expert tip

Ensure the ambient temperature is within the specified operating range for accurate tripping performance.

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Frequently asked questions

What is the breaking capacity of the Siemens HGB3B030B circuit breaker?

The Siemens HGB3B030B miniature circuit breaker has a breaking capacity of 10kA at 480Y/277V AC. This provides adequate protection against short circuits in most standard electrical installations.