PT335-2P - 400A, 277V, 2-Pole, Disconnect Switch

Designed for demanding industrial and commercial environments, the PT335-2P 400A, 277V, 2-Pole Disconnect Switch delivers reliable on/off isolation and robust overcurrent protection in one compact, maintainable package. This fusible switch is built to withstand daily duty while keeping your electrical system safe, organized, and easy to service.

• 2-Pole, 400A capacity: Power your high-demand loads with confidence while preserving a space-efficient footprint in control panels and switchgear.
• 277V operation: Optimized for common commercial distribution without adapters or adapters, simplifying system design.
• Fusible protection: Combines disconnect capability with fuse-based overcurrent protection for streamlined protection of motors, panels, and branch circuits.
• Compact, maintainable design: Easy installation and straightforward maintenance, with accessible components for quick servicing and fuse changes.
• Versatile use cases: Ideal for motor disconnects, panelboards, and branch circuit protection where a reliable, space-saving switch is required.
• Rugged for harsh environments: Built to endure vibration, dust, and temperature variations common in industrial settings, helping minimize downtime.

Key specifications

• Model: PT335-2P
• Amperage: 400 A
• Voltage: 277 V
• Poles: 2-Pole

Why it matters

With the PT335-2P, you get a single, reliable solution that handles safe isolation and protection for motors and electrical circuits. The fusible design reduces wiring complexity in panelboards and switchgear while delivering dependable performance under real-world loads and duty cycles.

Practical tips for optimal use

• Match fuse ratings to the motor or load to ensure coordinated protection and quick fault clearing.
• Schedule preventive maintenance to inspect contact cleaniness and enclosure integrity, helping extend service life.
• Document switch ratings and installation details in your panel schedules for easy future servicing.