AC WORKS® [ASINSS2PBX] 50A Locking 4-Wire CS6375/ SS2-50 Heavy-Duty Transfer Switch Inlet Box

  • $88.99 USD
  • Save $22 USD

This AC WORKS® brand transfer switch inlet box is durably constructed with heavy-duty thick metal to withstand the elements.  This inlet box contains a CS6375 / NEMA SS2-50P, 50 Amp, 125/250 Volt 4-prong locking plug.  Included with your purchase is a 5-year limited warranty. This inlet box can be installed indoors and outdoors, but please make sure your generator is NOT operating or running inside the house.

Note, 8 Gauge wire for 40 Amp, 6 Gauge wire for 50 Amp.

Please search online "Conduit Hub Accessory" for the top access port and "Electrical Conduit Accessories" for the other ports. We do not carry inlet box conduit accessories.

GE Brand and Midwest Brand raintight hubs fit the top access port. 


  • Transfer Switch Inlet Box 
  • CS6375/ SS2-50P, 50 Amp, 125/250 Volt Locking Inlet
  • 4-Prong Locking Plug Power Inlet Box
  • Male Plug UL E57672 and CSA 81290 Rated
  • Durable Heavy-duty Thick Metal Construction
  • Two combination 1/2-and 3/4-inch knockouts, 4 combination up to 1", and one combination up to 1 1/4-inch
  • 5-year Limited Warranty

Common Uses

  • Transfer Switch
  • Emergency Power
  • Backup Power


ASINSS2PBX Product Specification Sheet

50 Amp Inlet User Manual

AC WORKS® Brand Limited Warranty


Watch this helpful video on how to remove the knockouts.