Square D IK34125 125A 3-Pole 480 V Circuit Breaker

Square D IK34125 is a dependable 125A, 3-pole circuit breaker designed for 480 V three-phase power systems. Built to safeguard industrial and commercial electrical distribution, this unit delivers reliable overcurrent protection where it matters most.

• Part Number: IK34125
• Current rating: 125 A
• Poles: 3
• Voltage rating: 480 V

Ideal applications

Perfect for 480 V three-phase distribution networks in manufacturing facilities, data centers, and large commercial environments. Use it to protect feeders, motors, and control circuits that operate on 3-phase power, ensuring clean, predictable tripping behavior when faults occur.

Why this matters

Choosing the Square D IK34125 means aligning with a trusted electrical protection ecosystem. The 125 A rating is well-suited for medium-load feeders, while the 3-pole design ensures all phases trip together, reducing the risk of phase imbalance and equipment damage. The 480 V rating targets high-power applications, helping you maintain safer, more reliable operation of your critical systems.

Key benefits

• Precise overcurrent protection tailored to 480 V, three-phase workloads
• Coherent integration with Square D circuit protection families for easier sourcing and replacement
• Durable construction designed for industrial environments and long service life
• Clear identification with a specific part number, streamlining maintenance and inventory management

Use-case scenarios

• Protecting power feeders in 480 V distribution panels for manufacturing lines
• Safeguarding motors and drives fed from 3-phase 480 V supplies
• Replacement or upgrade in existing Square D-equipped installations requiring a 125 A, 3-pole, 480 V device

Installation and safety notes

Installers should verify panel compatibility and ensure the enclosure supports a 3-pole, 480 V breaker of 125 A. This work must be performed by a qualified electrical professional following local codes and manufacturer guidelines. Always confirm that the replacement part matches the original ratings to maintain proper protection and system performance.