Overview Heavy Duty Line Voltage Thermostats are used to control fan coils, fans, motor starters, valves, contactors, and circulator motors in heating and/or cooling systems. Features Provide good line voltage comfort control. Use with Q651A,B subbases for system and fan switching. Removable setpoint knob locks setpoint and prevents tampering. With locking cover. Product Specifications Hazmat InformationUN 2037 Butane (Receptacles, small, containing gas cartridges), 2.1, LTD. QTY, one Fiberboard box X 1kg ApplicationHeating Dimensions (in.)5 in. high x 3 1/2 in. wide x 1 5/8 in. deep Dimensions (mm)127 mm high x 79 mm wide x 41 mm deep Electrical Ratings16 A @ 120 Vac Full Load; 8 A @ 240 Vac Full Load; 96 A @ 120 Vac LR; 48 A @ 240 Vac LR Frequency50 Hz; 60 Hz Approvals, Underwriters Laboratories Inc.Listed: File No. E4436, Guide No. XAPX Approvals, Canadian Standards AssociationCertified: File No. LR95329-1 Electrical ConnectionsScrew terminals Supply Voltage120 Vac; 240 Vac Differential Temperature (F)1 F Differential Temperature (C)0.6 C ColorPlastic cover, tan Switching ActionSPDT Setting Temperature Range (F)50 F to 80 F