Tri-rated and Bi-rated single core heat resistant (HR-PVC) cables are suitable for use as internal connector cables in controllers, for induction loops, motor starters, rectifier equipment, switchgear, relay and instrumentation panels.
The term Tri-rated (generally available up to 120mm²) indicates cables that have three approvals: American (UL), Canadian (CSA) and British (BS). Larger sizes are Bi-rated, therefore having two approvals (UL and CSA) only. Both versions however are structurally the same.
| Construction – Tri-rated and Bi-rated |
|---|
| stranded plain copper conductors |
| heat resistant polyvinylchloride (HR-PVC) outer sheath |
| Technical – Tri-rated and Bi-rated | |
|---|---|
| conductor make-up: | class 5 (flexible fine stranded), see Stranding/Resistance page |
| bend radius: | 6 x overall diameter |
| voltage rating: | 600V/1000V operating |
| current rating: | as per PVC single core 105°C chart, see Current Ratings page |
| temperature range: | 0°C to +90°C flexible, -15°C to +105°C static |
| 0°C minimum during installation | |
| flame retardant: | according to BS EN 50265 and IEC 60332-1 |
| approvals: | Bi-rated (150-300mm2) = CSA Type CEW and UL Type AWM |
| Tri-rated: (0.5-120mm2) = as above, plus BS6231 Type CK | |
| UL style no’s: | 1015 1015, 1028, 1283 or 1284 (depending on cable size) |
| colours available: | brown, black, grey, blue, green/yellow, red, yellow, white, orange, |
| green, pink & violet (not all colours available in all sizes) | |
A printable specification is available here: Tri-rated or Bi-rated single core HR-PVC cable.
A similar cable with low smoke zero halogen sheathing can be found here: 6701B-2491B LSHF
For other power or wiring cables return to the PVC Power & General Wiring Cables front page.
