Square D | LXL36125 | Circuit Breaker | 125A | 3-Pole | 600V | Feed-Through

Meet the Square D LXL36125 Circuit Breaker — a 125A, 3-pole, 600V feed-through protection device engineered for demanding panel environments. Ideal for maintenance, retrofit, and replacement projects, this breaker helps you preserve exact specifications while delivering dependable, three-phase protection where it matters most.

• Amperage: 125A
• Poles: 3-Pole
• Voltage rating: 600V
• Configuration: Feed-Through
• Best compatibility reference: Part number LXL36125
• Recommended use cases: maintenance, retrofit, and replacement to match existing specs

Why the LXL36125 stands out

This three-pole, 600V feed-through breaker is designed to streamline panel work by providing a reliable path for downstream distribution. With feed-through capability, you can simplify wiring, reduce extra lugs, and maintain clean, organized terminations—especially valuable in service upgrades and panel refurbishments.

Ideal for

• Electrical contractors performing panel maintenance or retrofits in commercial or light industrial settings
• Facilities managers upgrading protection while preserving existing system architecture
• Technicians replacing a failed or out-of-spec breaker with a like-for-like Square D component

Key considerations and best practices

• Always confirm fit and ratings before ordering. The part number is the most reliable reference for compatibility.
• Ensure the panel and bus configuration support a 3-Pole, 600V, feed-through design.
• Install by a qualified electrician and follow all safety procedures to disconnect power before servicing.

Practical tips for installation and use

• Keep spares on hand for rapid maintenance—a matched LXL36125 can reduce downtime during outages or inspections.
• Document the replacement with the exact part number to simplify future maintenance and inspections.
• When retrofitting, plan wiring routes to leverage the feed-through feature, minimizing changes to downstream circuits.