GE TH4321 - 30A, 240V, 3-Pole, Switch, NEMA 1

The GE TH4321 is a rugged 30A, 240V, 3-Pole switch designed for dependable on/off isolation in challenging industrial and commercial environments. Built with durability in mind, this NEMA 1-rated switch is ready for indoor, dry-location service where clear control and reliable protection are essential.

Key specifications at a glance:

• Model: TH4321
• Current rating: 30A
• Voltage: 240V
• Poles: 3-Pole
• NEMA rating: NEMA 1

Why this GE switch stands out

Beyond simply turning equipment on and off, the TH4321 provides robust isolation and branch-circuit protection in a compact, maintainable package. The 3-pole design ensures all live conductors are disconnected simultaneously, delivering safer lockout and easier servicing of motors and driven equipment. Its compact footprint helps conserve panel space, making it a practical choice for retrofit projects and new installations alike.

Ideal use cases

• Motor disconnects for fans, pumps, conveyors, and small-to-mid-size machines up to 30A
• Panelboard isolation points within electrical racks or equipment enclosures
• Branch circuit protection where a simple, reliable switch is preferred over more complex protection schemes

What you gain with GE TH4321

• Reliability in tough environments: Built to withstand daily operation in demanding settings, providing predictable performance and life span.
• Safe, all-lines-off control: Three poles ensure full de-energization during shutdowns for improved personnel safety and maintenance efficiency.
• Maintenance-friendly design: Easy access for wiring and servicing reduces downtime and simplifies inspections.
• Versatile placement: NEMA 1 enclosure is suitable for indoor, dry locations, aligning with common industrial installations.

Practical tips and considerations

When integrating the TH4321, plan for a dedicated isolation point at the equipment level and consider coordinating with downstream protection devices to ensure comprehensive safety. For motor loads close to the 30A rating, ensure wiring gauges and overcurrent protection align with local codes and the manufacturer guidelines. The compact form factor makes it a good fit for space-constrained electrical panels while still delivering robust disconnection and protection.