GE TH3363 - 100A, 600V, 3-Pole, Fused Safety Switch

Designed for demanding industrial and commercial environments, the GE TH3363 100A, 600V, 3-Pole Fused Safety Switch delivers dependable electrical isolation with built-in fuse protection. It supports strict lockout/tagout procedures and provides reliable disconnection under load, helping safeguard personnel and critical equipment while minimizing downtime.

Specifications at a glance

• Amperage rating: 100 A
• Voltage rating: 600 V
• Number of poles: 3-Pole
• Enclosure: NEMA 1 (indoor use)
• Product type: Fused Safety Switch
• Brand/model: GE TH3363

Why this fused safety switch stands out

• The 3-pole design ensures complete de-energization of all conductors, delivering true isolation for safe service and maintenance.
• Integrated fuse protection: Fuses provide overcurrent protection right at the disconnect point, adding a crucial layer of safety beyond a simple switch.
• Indoor durability: The NEMA 1 enclosure is engineered for reliable operation in clean indoor environments, guarding against dust and incidental contact.
• Lockout/tagout-ready: Built to support standard lockout/tagout procedures, enabling technicians to work with confidence and ensuring compliance with safety protocols.
• Reliable under-load disconnection: Engineered to open circuits safely even when current is flowing, reducing arc-flash risk and equipment damage during switching operations.

Ideal applications

• Machine control panels in manufacturing lines and automated processes
• Motor control centers for pumps, conveyors, and compressors
• Electrical service enclosures in commercial facilities and industrial plants
• Areas where accessible, safe disconnection and routine maintenance are required

What you gain with the GE TH3363

• Precise isolation combined with fuse protection minimizes exposure to energized circuits during maintenance.
• A robust design that stands up to daily switchings and routine service in busy environments.
• Supports standard lockout/tagout practices, helping your facility meet safety and OSHA requirements.
• Works with 600V control systems and common industrial wiring schemes, streamlining integration into existing electrical infrastructures.

Tips for maximizing safety and longevity

• Verify the circuit is de-energized using appropriate testing methods before any service work; rely on the switch’s isolation as a guaranteed electrical dead-stop.
• Match fuse types and ratings to the load requirements to preserve protection and ensure selective coordination within your electrical system.
• Maintain clear lockout/tagout protocols around the disconnect point to protect technicians during maintenance windows.
• Schedule periodic inspections of the enclosure and interlock integrity to prevent ingress and ensure dependable operation over time.