GE TH4321 - 30A, 240V, Heavy-Duty, Safety Switch

GE TH4321 is a 30A, 240V heavy‑duty safety switch built for reliable on/off isolation and overcurrent protection in demanding industrial and commercial settings.

Compact and maintainable, this fusible switch is designed for scenarios where space matters and serviceability can't be overlooked. It excels as a motor disconnect, in panelboards, and for branch circuit protection when a removable, serviceable safety switch is required.

Key specifications at a glance

• Model: TH4321
• Amperage: 30A
• Voltage: 240V
• Duty: Heavy
• Application: Motor disconnects, panelboards, branch circuits
• Design: Compact, maintainable fusible switch

What makes this GE safety switch stand out

Designed to endure the rigors of busy electrical rooms and industrial floor spaces, the TH4321 combines robust construction with straightforward maintenance. The fusible switch design allows for clean fault interruption and controlled protection for connected equipment, reducing the risk of electrical damage during startup, shutdown, or fault conditions.

Use cases and practical scenarios

• Motor disconnects on conveyors, pumps, and fans in manufacturing or facilities environments
• Disconnection points in panelboards for safe maintenance and servicing
• Branch circuit protection for equipment rooms, warehouses, and HVAC installations

For installers and maintenance teams, the TH4321 provides a clear, tactile isolation point that helps minimize downtime and simplify fault isolation. Its 240V, 30A rating covers a broad range of common commercial and light-industrial circuits, making it a versatile choice when a compact safety switch is required.

How it compares to typical disconnects

Compared with larger, more complex disconnects, the GE TH4321 offers essential safety and overcurrent protection in a compact footprint. The maintainable fusible design means you can service and replace components more quickly, keeping equipment uptime high and maintenance costs predictable.

Tips for installation and best practices

• Verify circuit load and ensure 30A, 240V suitability before installation
• Plan for accessible wiring and clear isolation points for safe maintenance
• Follow local electrical codes and GE installation guidelines for fusible switches
• Label the switch clearly as the main isolation point for related equipment