... UL,RoHS,CE,CQC Foshan Best WK Series Thermal Cut-Out/Thermal Cut Out/Thermal Cutoff Switch · Approved by UL,CE,RoHS,CQC ... screws can be supplied completely Specifications of WKB Water Heater Thermal Cut-Out Sensing BulbCapillarySpecificationDia.:Φ3,Φ4,Φ5,Φ6Standard: 1000mm(300 ... bushing/fitting&nut for sealing shall be ordered by description. Thermal Cut-Out/Thermal Cut Out/Thermal Cutoff Switch