Siemens HGB3B030 - 30A, 3-Pole, Circuit Breaker

Siemens HGB3B030 is a 30A, 3-pole circuit breaker designed for dependable overcurrent protection in demanding electrical installations. The 3-pole configuration ensures all three phases disconnect together, enhancing safety and reducing the risk of partial phase faults.

This breaker is ideal for use in panelboards, switchboards, and control panels across industrial, commercial, and OEM environments where reliable protection matters—especially in distribution panels and motor control centers.

Key specifications

• Current rating: 30A
• Poles: 3-Pole
• Breaker type: Circuit Breaker
• Applications: Industrial, commercial, and OEM settings requiring robust overcurrent protection

Why it stands out

Unlike generic breakers, the HGB3B030's 3-pole design supports synchronized disconnection across all phases, which is essential for protecting three-phase loads like motors, pumps, and conveyors. Built for the heavy demands of motor control centers and distribution panels, it delivers consistent performance under challenging conditions.

Use cases

• Protect three-phase motors in manufacturing lines, conveyors, and processing equipment
• Guard feeders and power circuits in commercial HVAC, pumps, and ventilation systems
• Serve as a reliable main or branch protection device in OEM equipment where three-phase safety is critical

Installation and compatibility tips

Ensure your installation matches the panel’s rated architecture for three-phase protection and that the panelboard, switchboard, or control panel can accommodate a 3-pole breaker. When replacing older breakers, verify that the form factor and bus connections align with Siemens HGB3B030 specifications for smooth maintenance and downtime minimization.