GE THN3363SS - 100A, 3-Pole, Safety Switch

Meet the GE THN3363SS, a 100A, 3-Pole Safety Switch built for the real-world demands of industrial and commercial facilities. It delivers safe, reliable electrical isolation and is purpose-built to support lockout/tagout procedures, helping maintenance crews work confidently around energized equipment.

Key benefits and what they mean for you

• 100A, 3-Pole isolation provides full circuit disconnection, reducing exposure to live equipment and enabling safe servicing of motors, drives, and feeders.
• NEMA 4X enclosure protects against dust, water, and corrosion, making it suitable for indoor and outdoor installations, washdown areas, and environments with exposure to moisture or chemicals.
• Lockout/Tagout readiness supports compliant maintenance: space for padlocks and clear tagging to prevent accidental re-energization.
• Dependable under-load disconnection quickly and safely isolates circuits even when equipment is energized, reducing risk during servicing.
• Durable, long-term reliability GE engineering delivers rugged performance in demanding conditions, helping minimize downtime and maintenance costs.

Ideal applications

Use the THN3363SS in manufacturing floors, processing facilities, large HVAC systems, conveyors, pumps, and service panels. It’s designed for environments where robust electrical isolation, frequent maintenance lockouts, and reliable performance across shifts and seasons are essential.

What makes this GE safety switch stand out

• Professional-grade safety switch built for heavy-duty use where safety and code compliance are non-negotiable.
• Three-pole architecture ensures complete line-to-line isolation, reducing risks during service.
• Rugged enclosure is engineered to endure environmental challenges without compromising safety.

Technical specs

• Brand: GE
• Model: THN3363SS
• Amperage rating: 100A
• Poles: 3-Pole
• Enclosure rating: NEMA 4X
• Product type: Safety Switch

Practical tips for installation and use

For maximum safety and longevity, ensure proper alignment with your panel chassis and verify compatibility with your distribution system. Follow lockout/tagout protocols during maintenance, apply appropriate torque to terminals as specified, and position the switch so the status indicator remains visible to operators and technicians.