EBR1034EH70 100A 4P 480V Circuit Breaker, NEMA 3R | AmpState

Introducing the EBR1034EH70 — a 100 A, 4-pole, 480 V circuit breaker crafted for dependable protection in panelboards, load centers, and electrical distribution assemblies. Built to perform in a range of environments, this unit is designed to keep circuits safe in both controlled indoor spaces and exposed outdoor locations thanks to its NEMA 3R enclosure rating.

Ideal for retrofit projects and maintenance planning where the part number must stay consistent, the EBR1034EH70 streamlines replacements in aging infrastructures and documented configurations. This 4-pole breaker supports three-phase systems with a neutral, delivering coordinated interruption to protect conductors and downstream equipment without compromising system timing.

• Amperage: 100 A
• Poles: 4
• Voltage: 480 V
• Enclosure rating: NEMA 3R (weather-resistant, suitable for outdoor or damp environments)
• Product type: Circuit Breaker
• Part number: EBR1034EH70

Why this matters in real-world usecases: the EBR1034EH70 provides robust protection for commercial and light industrial installations, where reliability is non-negotiable and downtime is costly. Use it to:

• protect panelboards and load centers in outdoor equipment or exposed installations
• replace aging or non-standard breakers while keeping your documented part numbers intact
• coordinate with 3-phase distribution schemes that require a four-pole solution
• simplify maintenance planning by stocking a consistent, readily identifiable breaker

If you’re unsure about compatibility with existing gear, AmpState is ready to help. Send a quick message to confirm fit and ensure the EBR1034EH70 is the right match for your panelboard, load center, or distribution panel.

Availability is through AmpState, and this unit is designed to integrate smoothly with your established electrical protections. For best results, verify enclosure compatibility with your installation’s environmental requirements and ensure replacement wiring and labeling reflect the 4-pole, 480 V configuration.

Practical tips for installers and maintainers:

• Keep spare 4P, 480 V breakers on site for rapid retrofit projects to minimize downtime.
• Document the part number alongside critical system schematics to preserve retrofit traceability.
• Confirm three-phase wiring alignment and neutral connections to ensure proper trip coordination.