Siemens | EH3B100 | Circuit Breaker | 100A | 3-Pole | 480V

Siemens EH3B100 Circuit Breaker is a robust, industrial-grade protection device designed for demanding three-phase systems. With a 100A rating and a 3-pole configuration, it delivers precise overcurrent protection for equipment operating at 480V. This unit is ideal for maintenance, retrofit, and replacement projects where exact specifications matter, and the EH3B100 part number is the most reliable reference for compatibility.

Why choose the Siemens EH3B100

• Three-pole design provides true three-phase protection, ensuring all phases trip together to prevent unbalanced loads and equipment damage.
• 100A current rating supports moderate-to-high power circuits such as motor feeders and processing lines.
• 480V maximum operating voltage makes it suitable for industrial distribution panels and equipment in 3-phase systems.
• Direct reference for compatibility: use the EH3B100 part number to match panels and accessories within Siemens’ ecosystem.
• Designed for reliable performance in retrofit and replacement scenarios, minimizing downtime and simplifying stocking for service teams.

Practical applications and use cases

• Industrial manufacturing lines with 3-phase motors and feeders running at 480V.
• Retrofit projects where existing gear requires a like-for-like Siemens breaker to maintain protection schemes.
• Power distribution panels in warehouses, plant facilities, or HVAC setups using 480V three-phase power.
• Backup and emergency circuits that demand dependable trip protection across all three phases.

Installation considerations and tips

Before ordering, verify fit and ratings against your equipment’s specifications. The EH3B100 is the best reference for compatibility, and matching this exact part number helps ensure seamless integration with Siemens panels and accessories. For safe setup, rely on a licensed electrician to install or replace the unit, and follow standard electrical safety practices to avoid arc flash hazards.