PT363 - 100A, 600V, 3-Pole, Fusible, Disconnect Switch

PT363 is a rugged fusible disconnect switch engineered to deliver dependable on/off isolation and integrated overcurrent protection for demanding industrial and commercial environments. With a 100A rating, 600V capability, and a 3-pole design, this switch provides a compact, maintainable solution for three-phase systems.

Designed for reliability in motor and panel applications

• Integrated fusible protection combines disconnect and overcurrent protection in a single, space-saving device, reducing wiring complexity and downtime.
• Three-pole architecture ensures true three-phase isolation, providing safe de-energization for all phases and smoother motor starts.
• Compact footprint fits tighter panel enclosures and Retrofit projects without sacrificing performance.
• Maintenance-friendly design enables quicker fuse replacement and minimal service interruption, helping you keep production lines running.
• Industrial-grade robustness built to withstand challenging environments typical of manufacturing, processing, and HVAC installations.

Ideal applications

• Motor disconnects in conveyors, pumps, compressors, and other three‑phase equipment.
• Panelboards and distribution panels requiring a fused disconnect for downstream protection.
• Branch circuits that demand a compact, integrated disconnect and protection solution.

How it works

In normal operation, the PT363 completes the circuit, delivering power to downstream equipment while providing built‑in overcurrent protection via its fusible elements. In an overload or fault condition, the fuses interrupt current flow, preventing damage to motors and wiring. When maintenance is needed, the switch handle provides an obvious open/isolated state for safe service, and fuses can be replaced to restore protection quickly.

Specifications at a glance

• Model: PT363
• Amperage: 100A
• Voltage: 600V
• Poles: 3-Pole
• Fused: Fusible
• Ideal for: motor disconnects, panelboards, and branch circuit protection where a compact, maintainable fusible switch is required

Practical tips for best results

To maximize reliability, pair the PT363 with appropriately rated fuses that match your motor's full-load current, and plan for straightforward fuse replacement during routine maintenance. Always follow lockout/tagout procedures during servicing, verify proper enclosure clearance, and ensure wiring gauge and conductor routing are suitable for 600V three‑phase feeds. This approach keeps downtime to a minimum while maintaining robust protection for critical equipment.