Square D | PBLI36400G | Fusible Bus Plug | 400A | 3-Pole | 600V

Meet the Square D PBLI36400G Fusible Bus Plug — a purpose-built 400A, 3-Pole, 600V protection device engineered to slot into compatible distribution equipment for maintenance, retrofit, or replacement. Designed to deliver reliable protection and fast serviceability, this bus plug helps you minimize downtime without sacrificing safety or performance.

Key specifications

• Amperage: 400A
• Poles: 3-Pole
• Voltage: 600V
• Type: Fusible Bus Plug
• Part number: PBLI36400G
• Compatibility note: Confirm fit and ratings before ordering; the part number PBLI36400G is the best reference for compatibility.

Why this matters

The PBLI36400G isn’t a generic drop-in. It’s a Square D design that aligns with standard 600V bus configurations, delivering precise contact engagement, robust mechanical retention, and predictable fuse behavior essential for coordinating protection across feeders. This means clearer fault isolation, quicker restoration, and reduced maintenance risk in your electrical distribution system.

What you can use it for

• Maintenance: Replace worn or failed fusible bus plugs in existing Square D assemblies to restore protection and reliability.
• Retrofit: Upgrade protection schemes in 600V installations without reconfiguring the entire bus assembly.
• Replacement: Directly substitute a compatible bus plug with the PBLI36400G when matching specs are required.

Ideal for electrical engineers, facilities managers, and industrial technicians who need a trusted, exact-spec component for 400A, 3-Pole, 600V systems. When selecting parts for your gear, use the part number PBLI36400G as your primary compatibility reference to ensure a correct match.