Square D EDB34125 - 125 A, 480 V, 3-Pole Bolt-On Circuit Breaker | AmpState

Meet the Square D EDB34125 — a 125 A, 480 V, 3-pole bolt-on molded case circuit breaker designed to safeguard panelboards and load centers with dependable branch-circuit overcurrent and short‑circuit protection. Built by Square D, this device delivers rugged performance for residential, commercial, and light industrial applications, combining solid construction with straightforward installation.

• Secure bolt-on mounting: a rigid, vibration‑resistant bus connection that stays tight even in environments with steady movement or vibration.
• Thermal-magnetic trip unit: delivers stable, repeatable protection against overloads and short‑circuits, helping to minimize nuisance trips while protecting downstream equipment.
• OEM-compatible design: designed to pair with matching Square D load centers and panelboards for a seamless, code‑compliant installation.
• Three-pole configuration: ideal for 3‑phase distribution, providing coordinated protection across all phases of your system.
• High-capacity rating: 125 A at 480 V, enabling protection for larger branch circuits and distribution feeders.

Ideal use cases

• Upgrading or stocking replacements for Square D panelboards in offices, retail environments, or light manufacturing facilities.
• Distributing power to multi‑load panels in commercial spaces while maintaining coordination with existing protective devices.
• Protecting 3‑phase motors and related circuitry in environments where reliability is essential.

Technical specifications

• Manufacturer: Square D
• Part Number: EDB34125
• Type: Thermal-magnetic molded case circuit breaker
• Amperage Rating: 125 A
• Voltage Rating: 480 V
• Number of Poles: 3
• Mounting Style: Bolt-on
• Application: Branch circuit overcurrent and short‑circuit protection

Why this bolt-on MCCB from AmpState stands out: it delivers the reliability you expect from Square D with installation simplicity that helps you complete panel upgrades faster. The secure bolt-on mounting and vibration-resistant bus connection minimize loosening over time, while the thermal-magnetic trip unit provides predictable protection across varying temperatures and loads. For professionals upgrading or maintaining electrical distributions in commercial and light industrial settings, this 125 A, 480 V, 3‑pole breaker is a smart, long‑lasting choice.