... ,0.5A.Uses the SD control device, power source DC24V,0.5A.Usually often shuts, receives time the ... 0.5A.,DC24V.Uses the SFD control device, power source DC24V,0.5A. usually often shuts, receives time ... room inside control valve.BSD,DC24V,0.5A.,DC24V.Uses the BSD control device, power source DC24V,0.5A. ... room inside control valve.BSFD,DC24V,0.5A.,DC24V.Uses the BSFD control device, power source DC24V,0.5A. ...