A Normally Open (NO) valve like the ASCO 8210B57 remains open when there is no power

Key Technical Benefits: Optimized 24Vdc Operation: Precise 12-watt power consumption tailored for DC control circuits

For technicians servicing American Standard or Trane HVAC systems

as well as B and BE blower-type models

the 8105-033BX is the official successor

Carrier 571007 Fuse Holder 319852-301 A Normally Open (NO) valveSecure your HVAC electrical systems with the Carrier 571007 Fuse Holder, a heavy duty panel mount fuse holder engineered for Midget style fuses and Class CC fuses. Built for 600V AC DC applications and rated for 30A, this factory authorized component ensures safe circuit protection in various Carrier, Bryant, and Payne air handlers and furnaces. The rejection feature ensures that only the correct voltage and current rated fuses are installed,