PT321 - 30A, 240V, 3-Pole, Disconnect Switch

PT321 is a rugged 30A, 240V, 3-Pole Disconnect Switch designed to deliver reliable on/off isolation and overcurrent protection in demanding industrial and commercial environments. This compact, maintainable fusible switch is ideal wherever space is at a premium but dependable circuit protection is non-negotiable.

• Three-pole isolation ensures all three phases are disconnected together for safe maintenance and startup sequencing.
• 30A at 240V rating handles typical motor and control circuit loads in small to mid-size equipment.
• Fusible switch capability provides built-in overcurrent protection when paired with the appropriate fuses.
• Compact footprint fits tight panel layouts and control cabinets without sacrificing accessibility.
• Maintenance-friendly design supports straightforward fuse changes and routine inspections to minimize downtime.

Ideal use cases include motor disconnects, panelboards, and branch circuit protection in environments where a single, reliable device controls multiple lines. It’s well suited for controlling motors on conveyors, pumps, fans, and processing lines, as well as serving as the main disconnect in distribution feeders within commercial HVAC, manufacturing, and industrial settings.

What sets the PT321 apart is its thoughtful combination of compact size, robust isolation, and fusible protection in one accessible package. It streamlines panel layouts, simplifies maintenance, and helps reduce unplanned downtime by delivering clear, immediate circuit isolation when you need it most.

Specifications

• Model: PT321
• Amperage: 30A
• Voltage: 240V
• Poles: 3-Pole

Installation and safety tips

Install by a qualified professional and follow local electrical codes. Use compatible fuses with the fusible switch configuration, label circuits clearly, and implement lockout/tagout procedures to prevent accidental energization during maintenance.