PFA355 | Fusible Bus Plug | 400A | 600V

The PFA355 Fusible Bus Plug is an industrial-grade protection component engineered to integrate seamlessly into compatible bus duct and switchgear assemblies. With a 400A rating and a 600V maximum, it delivers reliable overcurrent protection while supporting efficient maintenance, retrofit, and replacement workflows.

Key advantages you gain with the PFA355:

• 400A amperage rating for standard industrial feeders and busbar circuits, enabling dependable protection without overspecifying your system.
• 600V voltage rating suitable for typical industrial power distribution, ensuring safe operation across demanding environments.
• Precise fit through the PFA355 part number — ideal for retrofits and replacements where exact compatibility matters.
• Fast, serviceable design that minimizes downtime: swap in a tested plug quickly during maintenance windows.
• Durable, industrial-grade construction designed to withstand the rigors of electrical installations in manufacturing, facilities, and data centers.

Where it shines

Use cases include routine maintenance of aging gear, retrofitting older switchgear with modern protective plugs, and straightforward replacement when a fusible bus plug fails or wears out. This plug is particularly valuable for electrical engineers and maintenance teams who need a reliable, field-ready solution with confirmed specifications.

Why choose this part

Unlike generic improvisations, the PFA355 is built to align with your existing protection schemes. Its defined amperage and voltage ratings, combined with the ability to verify compatibility via the official part number, help you prevent mismatches and deliver consistent protection across your power distribution network.

Specifications at a glance

• Amperage: 400A
• Voltage: 600V
• Part number: PFA355
• Compatibility note: Confirm fit and ratings before ordering. Part number is the best reference for compatibility.