Image is Representational - See Manufacturer Specs | Honeywell Ceramic Automatic Reset Thermostats 3450RC Series 3450RC 87130007 Switch Type SPST Automatic Reset Open on Rise Contact Type Silver Alloy Ceramic 15 A/10 A resistive max. B239 T146 Operating Temperature 0 �C to 260 �C [32 �F to 500 �F] Open Temperature 150 �C [302 �F] Close Temperature 135 �C [275 �F] Open Tolerance 4.44 �C [8 �F] Close Tolerance 5.56 �C [10 �F]