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.