Square D EH34100 Circuit Breaker, 100A, 3-Pole, 480V

Power your industrial electrical system with the Square D EH34100 Circuit Breaker. This 100A, 3-pole device is engineered for 480V three-phase environments, delivering dependable protection and a reliable switch for service work, maintenance, and replacement projects.

Key specifications at a glance:

• Amperage: 100 A
• Poles: 3
• Voltage: 480 V
• Manufacturer: Square D
• Part Number: EH34100

The EH34100 is crafted to guard critical loads and minimize downtime in demanding environments. It provides precise trip action to interrupt current quickly during overloads or faults, helping shield motors, drives, transformers, and other heavy-duty equipment from damage.

Why this matters for your operation:

• Three-phase protection ensures balanced shutdown across all phases, reducing the risk of phase-related equipment damage.
• Streamlined maintenance is achieved with a straightforward, field-replaceable unit for compatible panels and systems.
• Clear compatibility path by part number—verify EH34100 matches your specific panel and application requirements before installation.

Ideal use cases include industrial service panels, manufacturing lines, machine control centers, and other 480V distribution points where reliable protection and quick reset are essential. If you’re unsure about compatibility, we can help verify fit by part number and application requirements—send us a note with your panel make/model and loads, and we’ll guide you to a confident match.

Practical installation and maintenance tips:

• Keep a spare EH34100 on hand for fast field replacement during maintenance windows.
• Follow proper lockout/tagout procedures when working on energized equipment.
• Inspect the device during routine maintenance for signs of wear or overheating; replace promptly to protect upstream equipment.