Square D EDB34100 - 100 A, 480 V, 3-Pole Bolt-On Circuit Breaker | AmpState

Square D EDB34100 — 100A, 480V, 3-Pole Bolt-On Molded Case Circuit Breaker

Designed to protect essential electrical distribution in commercial and light industrial settings, the Square D EDB34100 delivers dependable branch circuit overcurrent and short-circuit protection for panelboards and load centers. This 3-pole, 100-amp device is purpose-built to handle the demanding environments of 480-volt three-phase systems with precision and reliability.

What makes this breaker stand out?

• Secure bolt-on mounting provides a rigid, vibration-resistant bus connection. The dependable attachment minimizes looseness over time, reducing hot spots and arc risks in noisy environments like motor control centers and industrial panels.
• Thermal-magnetic trip unit delivers stable, repeatable protection across a range of loads and ambient temperatures. It responds promptly to short circuits and protects downstream equipment from nuisance trips while safeguarding circuitry from sustained overloads.
• Three-pole design for 480V systems simplifies installation in three-phase panels, ensuring coordinated protection and balanced load distribution without the complexity of multiple single-pole devices.
• OEM-compatible specifically designed to work with matching Square D OEM load centers and panelboards, helping you achieve a clean, code-compliant distribution solution with fewer compatibility questions.
• Versatile applications ideal for residential-feeder upgrades in multifamily facilities, commercial electrical rooms, warehouses, and light industrial equipment rooms that rely on 480V distribution and 3-phase power.

Technical snapshot

• Manufacturer: Square D (Schneider Electric)
• Part number: EDB34100
• Type: Thermal-magnetic molded case circuit breaker
• Amperage rating: 100 A
• Voltage rating: 480 V
• Poles: 3
• Mounting style: Bolt-on
• Application: Branch circuit overcurrent and short-circuit protection

Ideal use cases and practical benefits

In environments where 480V three-phase power drives motors, compressors, conveyors, or HVAC systems, the EDB34100 provides robust protection with minimal maintenance. It’s well-suited for:

• New panel installations in commercial spaces and light industrial facilities
• Upgrades or retrofits of existing Square D panelboards and load centers
• Feeders and branch circuits that demand reliable protection against short circuits and overloads

Why choosing this breaker matters

Beyond basic specs, the EDB34100 is engineered for real-world reliability. The bolt-on mounting reduces bus connection movement, which translates to fewer intermittent faults in vibration-prone spaces. The thermal-magnetic trip unit combines low nuisance tripping with fast short-circuit response, helping protect motors and connected equipment from damage while keeping downtime to a minimum. When installed in compatible Square D panels, it contributes to a cohesive protection strategy that aligns with electrical codes and OEM design intentions.

Installation and long-term care tips

Ensure a qualified electrician handles installation. Confirm that the panelboard or load center is de-energized and properly grounded before mounting. Periodically verify that the bolt-on screws are tight and that the breaker remains firmly seated to maintain the integrity of the bus connection during operation.

For projects requiring robust 480V three-phase protection with durable mounting and precise magnetic-thermal tripping, the Square D EDB34100 100A 3-Pole Bolt-On Breaker is a purpose-built solution that delivers consistent performance, panel compatibility, and peace of mind across residential, commercial, and light industrial applications.