Square D | TAP365 | Fusible Bus Plug | 400A | 600V

Square D TAP365 Fusible Bus Plug — a purpose-built solution for adding reliable fusible protection to Square D switchgear. Designed for demanding industrial environments, this 400A, 600V bus plug is ideal for maintenance, retrofit, and replacement projects where precise specifications matter. When you need a plug-in component that matches the exact Square D architecture, TAP365 delivers the right fit and performance.

What is TAP365 and why it matters

The TAP365 fusible bus plug is a field-ready, plug-in device that enables safe, controlled protection of bus sections within compatible Square D panels. By aligning with a 400A, 600V service, it supports reliable fault interruption and protects downstream equipment during normal operation and fault conditions. Using the correct part number is your best guarantee of compatibility with your existing gear and downstream protection schemes.

Key advantages for the on-site toolbox

• Exact electrical fit — 400A current rating and 600V voltage handling tailored for heavy-duty distribution equipment.
• Efficient maintenance and retrofits — quick installation or replacement to minimize downtime during service windows.
• Field-ready compatibility — designed to align with Square D specifications, reducing the risk of mismatches in critical protection paths.
• Durable, reliable protection — built for ongoing industrial use where consistent performance matters for uptime and safety.
• Clear reference for ordering — part number TAP365 is the definitive reference to ensure you’re selecting the correct component.

Ideal use cases

• Maintenance planning for aging switchgear where fusible protection should be preserved or restored.
• Retrofits that upgrade protection schemes without altering the surrounding bus or panel architecture.
• Spare parts strategy for rapid replacement during scheduled outages or emergency downtime.
• Repairs and replacements in facilities with Square D distribution equipment that requires a 400A, 600V protection path.

Compatibility and safety notes

• Amperage: 400 A
• Voltage: 600 V
• Best compatibility reference: Part number TAP365
• Important: Confirm fit and ratings before ordering—the part number TAP365 is the most reliable reference for compatibility.

Practical tips for installation and use

Before you order, verify that your Square D panel or distribution setup requires a fusible bus plug with a 400A/600V rating, and that TAP365 is the correct reference for your specific chassis. When installing, follow your facility’s change-management process, schedule a maintenance window, and have a qualified electrician handle the replacement to ensure proper seating and secure connections. Keeping a TAP365 on hand as a spare can dramatically reduce downtime during planned maintenance or unexpected failures, helping maintain continuous power reliability for critical operations.

Note: This description reflects the key characteristics of the TAP365 fusible bus plug—an exact-match component engineered for Square D systems, prioritizing compatibility, safety, and practical field use in industrial electrical distribution.