Product Data Sheet 670A RZ XX Replace XX with 01 through 36 for number of poles T erminal Block Closed Back (6 Pole shown) 20 Amps, 300 Volts (AC/DC), Class B Copper Wire Only Wire Range with Wire Binding Screw: 12 - 22 AWG (solid recommended) 3/8 Centers Electrical Ratings: 20A with unprepared wire, (Based on NEC Table 310-16, 75C columns) 20A with Listed ring lug, (Based on NEC Table 310-16, 75C columns) 300 Volts AC/DC (UL 1059 Class B, Use Group Commercial Appliances) 150 Volts AC/DC (UL 1059 Class C, Use Group General Industrial) Short Circuit Current Rating: 10,000A (Default) Approved for Factory and Field Wiring. NOTE: Use outside these ratings must be judged in end-use application Mechanical Ratings: Insulator base temperature rating: -40 C/F to 130C (266F) UL RTI Flammability rating of insulator base: UL 94V-0 Materials: Connector (Contact): Brass, tin plated. Insulator base: Glass-filled polycarbonate (Thermoplastic) Drive screw (Rivet): Stainless steel Screw, 6-32 Binder head, Phil-Slot: Steel, nickel plated Agency Approvals: UL Recognized, UL 1059 Terminal Block Standard, File No. XCFR2.E47811 CSA Certified, CSA C22.2 No. 158, File No. LR19766 CE compliant, IEC 60947-7-1 RoHS Compliant Wire Range: Copper Wire Stranding Classes - Number of Conductors Wire Size Torque Solid Class B Class C 12 12 in. Lbs 1 1 1 14 12 in. Lbs 1 1 1 16 12 in. Lbs 1 1 1 18 12 in. Lbs 1 1 1 20 12 in. Lbs 1 1 1 22 12 in. Lbs 1 1 1 Mounting: Suggested product mounting hardware: 6 fastener, torque to 10-15 in. lbs. Accessories: Printing: for printing options, see Terminal Block Printing