Square D | LE36400LIG | Circuit Breaker | 3-Pole | 600V | Plug-In

Meet the Square D LE36400LIG — a purpose-built 3-pole, 600V plug-in circuit breaker designed for demanding electrical environments. Built for maintenance, retrofit, and replacement projects, this unit is selected when precise compatibility matters and downtime is costly. Its plug-in design locks into compatible Square D panels for fast, tool-light installation and straightforward field service.

Key specifications at a glance

• Pole configuration: 3-Pole
• Voltage rating: 600V
• Mounting style: Plug-In
• Part reference: LE36400LIG
• Use case: Maintenance, retrofit, or replacement in compatible panels
• Important note: Confirm exact fit and ratings against your panel model before ordering

Why choose the LE36400LIG for your project? This breaker is not just about matching numbers; it’s about ensuring reliable, coordinated protection within your 600V distribution system. The 3-pole design provides synchronized protection across all three phases, which is critical for balanced loads and safe operation in multi-phase applications. By selecting the exact part number, you minimize compatibility risk and avoid the delays that come with generic substitutes.

Ideal use cases

• Replacing a worn or failed 3-pole, 600V breaker in existing Square D panel installations
• Retrofits and panel upgrades where a precise 3-pole, 600V plug-in solution is required
• Maintenance inventories to shorten downtime during service windows

Practical considerations for installation and compatibility

• Before ordering, verify that your panel model accepts plug-in LE-series breakers and that the LE36400LIG matches the required trip rating and frame size
• Prepare the panel area for safe removal and replacement, following standard lockout/tagout procedures
• Keep the exact part number handy during procurement to ensure a precise match with your existing protection scheme

Equip your electrical system with a component designed for dependable performance when it matters most. The Square D LE36400LIG 3-Pole, 600V plug-in circuit breaker is the targeted, field-ready solution for maintenance, retrofit, and replacement scenarios that demand accuracy and rapid installation. Ready to protect your circuits with a fit-for-purpose, reliable upgrade—order the LE36400LIG and confirm your panel’s compatibility to ensure a seamless swap.