LX-450 Automatic Transfer Switch

Hubbell LX-450, LX-440 transfer switches provide dependable transfer of power between preferred and emergency power sources. The compact modular design is suitable for emergency and standby system applications and is available in 100 through 1250 amps in 2, 3, and 4 pole configurations. The LX-440 transfer switches are UL 1008 listed to 480VAC and greatly exceed the UL requirements for withstand and closing.

The LX-440 transfer switches have the highest short-circuit withstand ratings in the industry:

100 Amps rated at 42k Amps when used with circuit breakers
200 Amps rated at 50k Amps when used with circuit breakers
260-600 Amps rated at 65k Amps when used with circuit breakers
800-1250 Amps rated at 85k Amps when used with circuit breakers

The LX-450 and LX-440 transfer switches are double throw, mechanically interlocked, electrically operated. As the Hubbell name implies, these switches were designed, constructed and tested for heavy-duty applications to assure dependable operation.