Square D | PQ100G | Fusible Bus Plug | 100A | 3-Pole | 600V

The Square D PQ100G Fusible Bus Plug is a purpose-built solution for maintenance, retrofit, and replacement in compatible Square D power distribution setups. With a 100A rating across 3 poles and a 600V operating limit, this fusible bus plug delivers dependable protection and swift, secure serviceability when you need to refresh your electrical infrastructure.

Key specifications

• Amperage: 100 A
• Poles: 3-Pole
• Voltage: 600 V
• Part number: PQ100G

Important notes: Confirm fit and ratings before ordering. The part number is the best reference for compatibility.

Why this fusible bus plug matters

• Designed to enable quick maintenance and seamless retrofits, reducing downtime when replacing aging protection components in Square D switchgear.
• Three-pole configuration ensures balanced protection across all phases, helping safeguard downstream equipment from fault conditions.
• 600V rating broadens its applicability for a wide range of industrial and commercial distribution applications where reliable protection is essential.
• Built to integrate with Square D assemblies that accept PQ100G, offering dependable performance in demanding environments.

Ideal use scenarios

• Electrical technicians performing routine service on panelboards or switchgear that require a PQ100G fusible bus plug.
• Retrofit projects upgrading protection components to current, compatible PQ100G models for enhanced reliability.
• Replacement needs when a previously installed bus plug has reached end-of-life or shows signs of protection fatigue.

Practical tips for best results

• Verify system ratings and the exact pole configuration in your equipment before purchasing to ensure proper fit.
• Maintain a small stock of PQ100G units for planned maintenance windows to minimize unplanned downtime.
• Follow standard electrical safety practices during handling and installation; store spare units in a clean, dry environment to preserve fusible elements.