18/4 PAIR STR CU TFN/PVC SPOS TYPE TC-ER BLACK 0 FT
Application & Features
Southwire’s Instrumentation Cables Type TC-ER per UL 1277 are suitable for installations as outlined in NEC Article 336 for process control and instrumentation, control circuits for operation and interconnection of protective and signaling devices and for general use in manufacturing, industrial and commercial distribution systems. Cables are constructed with 7-strand copper conductors insulated with nylon covered PVC. The paired conductors are colored black, white, and alpha-numeric printed. Each pair has an aluminum polyester foil with 100% coverage and a tinned drain wire. The overall assembly is covered with an aluminum polyester foil with 100% coverage and a tinned drain wire. The cable is suited for use in cable trays, raceways, conduit, aerial (when supported with a messenger) and direct burial. The cable is rated for -30°C to 90°C and rated for Class I Div II hazardous locations, sun and oil resistant. The jacket is black PVC with a nylon rip cord for easy removal.
Specifications
| Cond. Size | 18 AWG 18 AWG | |
| Conductor Number | 4.0 4.0 | |
| Diameter Over Conductor (in) (cm) | 0.045 0.11 | inch cm |
| Inner Layer Thickness (mils) (mm) | 15 0.38 | mils mm |
| Outer Layer Thickness (mils) (mm) | 45 1.14 | mils mm |
| Approx. OD (in) (cm) | 0.460 1.17 | inch cm |
| Approx. Weight (lbs/1000') (kgs/km) | 119 177 | lbs/1000' kgs/km |
| Min. Bend Radius (in) (cm) | 2.7 6.86 | inch cm |
| DC Resistance at 25C (ohms/1000') (ohms/km) | 6.669 9.92 | ohms/1000' ohms/km |
Standards & References
- ASTM B3 Soft or Annealed Copper Wire
- ASTM B8 Concentric-Lay-Stranded Copper Conductors
- UL 66 Fixture Wire Type TFN
- UL 1277 Electrical Power and Control Tray Cables
- UL 1685 Vertical-Tray Fire Propagation and Smoke Release Test (1/0 and Larger)
- IEEE 1202 FT4 Flame Test (70,000) BTU/hr Vertical Tray Test
- EPA 40 CFR, Part 26, Subpart C heavy metals per Table 1, TCLP method
Construction
- Conductor: Class B stranded bare copper per ASTM B3 and B8
- Insulation: Premium Grade Polyvinyl Chloride (PVC) plus nylon. Black/White alpha-numeric print alternate and inverted. 1-ONE, 2-TWO
- Drain Wire: Tinned copper. Sized two AWG sizes smaller than pair size. For #18 awg pair: Drain is 20 awg. For #16 awg pair: Drain is 18 awg.
- Twisted Shielded Pair: 100% coverage aluminum/polyester foil shield with an individual drain wire shown in step 3
- Binder: Mylar binder
- Overall Drain Wire: Tinned Copper. Sized two AWG sizes smaller than pair size. For #18 awg pair: Drain is 20 awg. For #16 awg pair: Drain is 18 awg.
- Overall Shielded: 100% coverage aluminum/polyester foil shield with a drain wire as shown in step 6
- Rip Cord: Rip cord under jacket for ease of removal
- Jacket: Black sunlight, oil and moisture resistant Polyvinyl Chloride (PVC)