Square D | PBLA400GN | Bus Plug | 400A | 600V

Square D PBLA400GN Bus Plug: a heavy-duty, authentic component engineered for demanding electrical distributions. This 400A, 600V bus plug is built to integrate seamlessly with compatible Square D panels and bus assemblies, making it ideal for maintenance, retrofit, and replacement projects where precise specifications matter.

Key specifications at a glance

• Amperage: 400 A
• Voltage rating: 600 V
• Part number: PBLA400GN
• Type: Bus plug
• Brand: Square D

Why choose the PBLA400GN for your project

When your goal is reliable performance in high-current environments, authenticity matters. The PBLA400GN is designed to deliver a secure, compliant connection within Square D’s bus plug ecosystem, supporting continuous operation in industrial applications where 400A and 600V are standard requirements.

Ideal use cases

• Maintenance and part replacement in existing Square D electrical installations
• Retrofit projects upgrading panel capacity or replacing worn components
• Spare part inventory for service teams to reduce downtime

What you need to know before ordering

Confirm fit and ratings before purchasing. The PBLA400GN part number is the most reliable reference for compatibility with your Square D bus plug assemblies. If you’re replacing a worn part of the same family, this exact model ensures a proper match with your current panel and bus system.

Installation and safety note: Ensure power is fully isolated and follow lockout/tagout procedures before handling any bus plug components. Use only in equipment and panels rated for 600 V and 400 A. Proper handling and installation by qualified personnel maximize performance and safety.

Care and storage

Store in a clean, dry environment and inspect the bus plug for signs of wear or damage prior to installation. Keeping spares on hand minimizes downtime during routine maintenance or unexpected equipment failure.