Square D | PBLI34400G | Bus Plug | 400A | 4-Pole | 480V

Meet the Square D PBLI34400G Bus Plug—a rugged, high-current module engineered for demanding 480V systems. With a 400A rating and a 4-pole configuration, this bus plug is purpose-built to integrate with compatible Square D switchgear, delivering dependable performance during maintenance, retrofit, or replacement projects where exact specifications matter.

Key specifications

• Amperage: 400 A
• Poles: 4-Pole
• Voltage: 480 V
• Part number: PBLI34400G
• Applications: maintenance, retrofit, and replacement in compatible gear

Why this bus plug matters

The PBLI34400G is designed for direct compatibility with Square D equipment, reducing installation guesswork and downtime. Its precise 4-pole, 480V construction ensures reliable electrical performance in high-demand environments, from industrial facilities to data-center infrastructure. By matching the exact part number, you gain a trusted reference point for compatibility, minimizing the risk of misfit components in critical power distributions systems.

Ideal use scenarios

• Replacing aging or damaged bus plugs in 480V distribution panels
• Retrofit projects that upgrade gear to a 4-pole, 480V configuration for enhanced capacity
• Maintenance cycles where precise spec alignment is essential for safe, code-compliant operation

What to consider before ordering

Confirm fit and ratings before ordering to ensure seamless replacement. The PBLI34400G is best referenced by its part number for compatibility checks, helping you avoid mismatches and unnecessary downtime.

Installation and safety tips

• Power should be fully isolated before any installation or removal work
• Verify proper alignment and seating within the corresponding switchgear to ensure a secure, reliable connection
• Follow your facility’s lockout/tagout procedures and personal protective equipment requirements
• Consult the equipment manual for torque and seating guidelines specific to your Square D gear

Real-world benefits

Choosing the PBLI34400G means opting for a direct-fit solution that minimizes retrofit risk, reduces downtime, and preserves electrical system integrity. Its robust design supports reliable operation in high-current, 480V environments, making it a trusted component for service teams handling routine maintenance, sudden replacements, or system upgrades. When exact compatibility and documented performance matter, this bus plug delivers clarity, consistency, and peace of mind.