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Siemens HEB3B125 3-Pole Miniature Circuit Breaker - 125A

Siemens HEB3B125 3-Pole Miniature Circuit Breaker.

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ManufacturerSiemens
Part numberHEB3B125
Poles 3
Current Rating 125A
Voltage Rating 480Y/277VAC
Trip Type Thermal-Magnetic
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3-Pole configuration 125A current rating Thermal-magnetic trip 10kA breaking capacity Siemens reliability High-capacity breaker

The Siemens HEB3B125 is a heavy-duty, 3-pole miniature circuit breaker with a 125 Ampere rating, designed for critical protection of high-capacity electrical circuits. It offers reliable safeguarding against overloads and short circuits, meeting stringent industrial standards for safety and performance.

This breaker is commonly employed in main service panels, large industrial equipment, and power distribution systems where substantial current must be safely managed. Its robust build ensures dependable operation even under the most demanding conditions.

Stanlo Automation, a veteran-owned surplus industrial automation parts distributor, provides access to essential components like the Siemens HEB3B125. We aim to deliver exceptional value and prompt service, ensuring your industrial operations experience minimal downtime.

Poles3
Current Rating125A
Voltage Rating480Y/277VAC
Trip TypeThermal-Magnetic
SeriesHEB
Breaking Capacity10kA
Main service panels
High-capacity industrial feeders
Large motor protection
Power distribution systems
Industrial machinery
Heavy-duty electrical installations
Industrial control systems Building management systems Power distribution units
Siemens HEB 3B125 HEB3B125 breaker Siemens 125A 3P breaker
The HEB3B125 serves as a replacement for Siemens HEB series breakers of the same rating. Confirm compatibility with your existing panel and wiring.
Expert tip
When installing the HEB3B125, ensure the enclosure's busbar system is rated to handle the 125A current and the 10kA interrupting capacity.
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What is the breaking capacity of the Siemens HEB3B125 circuit breaker?
The Siemens HEB3B125 miniature circuit breaker has a breaking capacity of 10kA (10,000 Amperes). This rating ensures it can safely interrupt fault currents up to this level, protecting the connected electrical system and preventing potential hazards.