Siemens HEG3B025B 25A 3-Pole 600 V Circuit Breaker

Introducing the Siemens HEG3B025B 25A 3-Pole 600 V Circuit Breaker — a purpose-built protection device for three-phase power systems. With a 25-amp rating across three poles and a voltage rating up to 600 V, this breaker is designed to safeguard motors, pumps, and distribution panels in demanding industrial and commercial environments. Part Number HEG3B025B ensures precise compatibility with Siemens panels and gear, making replacement and upgrades straightforward.

Key specifications

• Current rating: 25 A
• Poles: 3
• Voltage rating: Up to 600 V
• Part number: HEG3B025B
• Type: Three-pole circuit breaker for three-phase protection

What it protects and how it helps your operation

Designed for three-phase systems, this breaker delivers reliable protection for equipment like motors, conveyors, and control panels. The three-pole design ensures simultaneous interruption across all phases, preventing phase imbalances that can shorten equipment life or trigger costly downtime. The thermal-magnetic trip mechanism provides fast response to overloads and short circuits, helping minimize damage and maintenance costs.

Use cases and ideal environments

Ideal for industrial and commercial settings where three-phase power is standard. Use this breaker in distribution panels, motor control centers, and equipment racks that require precise 25 A protection at voltages up to 600 V. It’s a practical replacement or upgrade for Siemens-compatible systems, offering consistent performance and dependable protection in demanding environments.

Installation and compatibility tips

Ensure your panel is designed to accept 3-pole Siemens breakers and that the bus connections match the HEG3B025B form factor. For safe, optimal results, have a qualified electrician perform installation or replacement to verify system compatibility and protective coordination with nearby devices.