Square D | PQ4610G | Fusible Bus Plug | 100A | 4-Pole | 600V

When your industrial power distribution demands fast, reliable protection, the Square D PQ4610G Fusible Bus Plug is designed to perform. This 100A, 4-pole, 600V bus plug integrates seamlessly with compatible Square D switchgear to provide safe, quick-maintenance replacement of fused connections.

Key attributes are built into the PQ4610G, including:

• Amperage: 100A
• Poles: 4-Pole
• Voltage rating: 600V
• Part number: PQ4610G

Why this fusible bus plug stands out

• Plug-in maintenance and retrofit ready: Designed for straightforward installation in compatible Square D gear, minimizing downtime during service or upgrades.
• Precise compatibility: The PQ4610G part number is the best reference for matching enclosures, bus assemblies, and fuse configurations—always confirm fit and ratings before ordering.
• Four-pole protection: Supports multiple feeders with a single fusible interface, simplifying panel architecture while maintaining selective protection.
• Durable construction for demanding environments: Built to withstand industrial conditions, helping maintain reliability in motor control centers and distribution panels.

Ideal use cases

• Maintenance and retrofit projects on Square D distribution panels or motor control centers requiring a 100A, 4-pole, 600V fusible bus plug.
• Replacement parts for aging equipment to restore original protection schemes without large-scale rewiring.
• Spare components for service teams to minimize downtime during fuse changes or panel upgrades.

Installation and safety considerations

• Before purchasing, verify fit and ratings using the PQ4610G reference to ensure compatibility with your enclosure model and bus architecture.
• Follow all applicable electrical codes and lockout/tagout procedures during installation. Replace only with an identical fusible bus plug to preserve protective coordination.
• Coordinate with your maintenance schedule to minimize system downtime; plan for fuse replacement during normal maintenance windows.

Notes on performance and outcomes

The PQ4610G fusible bus plug provides dependable overcurrent protection for 100A circuits across 600V systems, helping you maintain protection coordination while simplifying field service. By choosing the Square D PQ4610G, you’re selecting a trusted, OEM-approved solution that aligns with Square D switchgear ecosystems and best practices for electrical safety and reliability.