General Electric THN3221 Fusible Disconnect Switch

The GE THN3221 Fusible Disconnect Switch is a 30-amp, 2-pole, 240-volt disconnect device from General Electric. As a fusible disconnect, it combines a manual switch with a fusible element to interrupt current and provide overcurrent protection for a circuit. The 2-pole design interrupts both hot legs of a 240 V circuit, delivering a dedicated safety point for servicing equipment or electrical panels. This unit is intended for installations requiring a controlled shutdown and circuit protection at 240 V up to 30 A in industrial or commercial electrical systems. When used correctly, the THN3221 serves as a clear, accessible disconnect for maintenance and emergency isolation while aligning with typical electrical codes for equipment disconnects.