14-7 STC 12/C EPR XHHW E-1 CLR CDRS CPE JKT TC
Application
Southwire’s 600 Volt Type TC-ER control cables are suited for use in wet and dry areas, conduits, ducts, troughs, trays, direct burial, aerial supported by a messenger, and where superior electrical properties are desired. These cables are capable of operating continuously at the conductor temperature not in excess of 90°C for normal operation in wet and dry locations, 130°C for emergency overload, and 250°C for short circuit conditions. For uses in Class I, II, and III, Division 2 hazardous locations per NEC Article 501 and 502. Constructions with 3 or more conductors are listed for exposed runs (TC-ER) per NEC 336.10. VW-1 rated - Sunlight Resistant - Oil Resistant - For Direct Burial - Silicone Free
Specifications
| Cond. Size (AWG/Kcmil) | 14 14 | |
| Conductor Number | 12 12 | |
| Cond. Strands | 7 7 | |
| Insulation Thickness (mils) (mm) | 30 0.76 | mils mm |
| Jacket Thickness (mils) (mm) | 60 1.52 | mils mm |
| Approx. OD (in) (cm) | 0.692 1.76 | inch cm |
| Copper Weight (lbs/1000') (kgs/km) | 150 223 | lbs/1000' kgs/km |
| Approx. Weight (lbs/1000') (kgs/km) | 299 445 | lbs/1000' kgs/km |
| DC Resistance @ 25C (ohms/1000') (ohms/km) | 2.631 3.92 | ohms/1000' ohms/km |
| AC Resistance @ 75C (ohms/1000') (ohms/km) | 3.170 4.72 | ohms/1000' ohms/km |
| Min. Bend Radius (in) (cm) | 2.8 7.11 | inch cm |
| Raceway Ampacity @ 75C (amps) | 10 10 | |
| Raceway Ampacity @ 90C (amps) | 12 12 |
* Ampacities based upon 2023 NEC Table 310.16 and do not take into account the overcurrent protection limitations in NEC 240.4(D) of 15 Amps for 14 AWG CU, 20 Amps for 12 AWG CU, and 30 Amps for 10 AWG CU (independent of the conductor temperature rating and stranding if size is present in table). Also, see NEC sections 310.15 and 110.14(C) for additional requirements.
* Ampacities have been adjusted for more than Three Current-Carrying Conductors.
Standards & References
- ASTM B3 Soft or Annealed Copper Wire
- ASTM B8 Concentric-Lay-Stranded Copper Conductors
- ASTM B33 Standard Specification for Tin-Coated Soft or Annealed Copper Wire
- UL 44 Thermoset-Insulated Wires and Cables
- UL 44 VW-1 Vertical flame test on individual conductors
- UL 1277 Electrical Power and Control Tray Cables
- UL 1685 FT4 Vertical-Tray Fire Propagation and Smoke Release Test
- ICEA S-58-679 Control Cable Conductor Identification Method 1 Table 1
- ICEA S-73-532 Standard for Control, Thermocouple Extension and Instrumentation Cables
- ICEA S-95-658 (NEMA WC70) Power Cables Rated 2000 Volts or Less for the Distribution of Electrical Energy
- IEEE 1202 FT4 Flame Test (70,000) BTU/hr Vertical Tray Test
Construction
- Conductor: 7 strands class B compressed tinned copper per ASTM B33 and ASTM B8
- Insulation: Ethylene Propylene Rubber (EPR) XHHW-2, 30 Mils thick for all cable sizes
- Overall Jacket: Thermoplastic Chlorinated Polyethylene (CPE-TP) Jacket