Siemens | HGG3B040L | Circuit Breaker | 40A | 3-Pole

The Siemens HGG3B040L circuit breaker is a 40A, 3-pole device designed for dependable protection in 3-phase electrical systems. Identified by the part number HGG3B040L, this unit is intended for maintenance, retrofit, and replacement where exact specifications are required.

Key specifications and compatibility

• Amperage: 40A
• Poles: 3-Pole
• Part number: HGG3B040L — the best reference for compatibility

Why this matters: choosing the exact Siemens HGG3B040L ensures your panel remains compliant and protected with the same mechanical and electrical characteristics as the original device. This is especially important in service panels and industrial controls where misfit breakers can lead to nuisance trips or improper protection.

What problems it solves

When you’re maintaining or upgrading a three-phase distribution system, a dedicated Siemens 3-pole breaker like the HGG3B040L provides consistent trip behavior across all phases, giving you reliable protection for motors, contactors, and other 3-phase loads up to 40 amps.

Ideal use cases

• Maintenance and service of Siemens panels that require a 40A, 3-pole protection device
• Retrofits or panel upgrades where the exact part reference is essential
• Replacement for worn or failed breakers in compatible Siemens equipment

How to ensure the right fit

Before ordering, verify that your panel or enclosure lists a 3-pole configuration and a 40A rating. Use the part number HGG3B040L as the definitive reference to confirm compatibility with your Siemens system and ratings.

Why choose a Siemens component

Original Siemens hardware provides predictable performance, consistent trip characteristics, and seamless integration with existing Siemens protection schemes. This reduces the risk of mismatched trip curves and ensures you’re covered by the same quality standards used in your equipment’s original build.