Square D EJB34025 25A 480V 3-pole Bolt on Circuit Breaker

Product Description

The SQUARE D EJB34025 is a 3-pole bolt-on miniature circuit breaker rated for 25 amps at 480Y/277 volts. It provides overcurrent and short-circuit protection in three-phase electrical distribution systems. With a 65 kA interrupting capacity, it handles high fault-current environments found in commercial and light industrial panelboards. Compatible wire sizes include 12 and 14 AWG. Licensed electricians install this breaker during new construction, panel upgrades, or branch-circuit replacements. Its bolt-on terminal connection secures directly to the bus bar for a solid, low-resistance connection.

This breaker is suited for three-phase commercial and light industrial applications where 480Y/277-volt distribution is standard. Typical install scenarios include multi-tenant commercial buildings, retail facilities, and light manufacturing panels where branch circuits feed lighting, HVAC equipment, or motor loads. The lug-style terminal connection accepts field wiring within the rated AWG range. The 3-pole configuration simultaneously interrupts all three ungrounded conductors on a fault.

Key Features

• 25-amp continuous current rating at 480Y/277 volts
• 65 kA interrupting capacity for high fault-current environments
• 3-pole design interrupts all phases simultaneously
• Bolt-on bus connection for secure, low-resistance mounting
• Lug terminal type accepts 12 and 14 AWG conductors

Compatibility

Designed as an OEM-style bolt-on replacement miniature circuit breaker for three-phase 480Y/277-volt commercial panelboard applications.

Installation Notes

Installation must be performed by a licensed electrician in accordance with the National Electrical Code (NEC) and applicable local codes. De-energize and lock out the panelboard before removing or installing any breaker. Verify bus bar compatibility and panel ampacity before installation. Do not exceed the breaker's rated ampacity or install conductors outside the listed AWG range.