| Class |
Insulating Material |
Impregnation Material |
Max. Continuous Temperature |
Cable Type |
| Y |
Cotton, Synthetic and natural silk, Polyamide fibers, Paper, Polyvinylchloride (PVC), Polyethylene (PE), Vulcanized rubber
|
- |
90°C
|
European PVC + Neoprene cables |
| A |
Cotton, Synthetic and natural silk, Polyamide, Paper, heat-resistant impregnated textiles, Polyester resin |
Bitumous varnish Synthetic resin varnish Insulating oil and synthetic di-electrical fluids |
105°C |
HELUTHERM® single conductors, control cables UL + CSA-approved |
| (E) |
Special wire enamel, Special synthetic foils, Compressed material with cellulose fillers, Paper and cotton tapes
|
Synthetic resin varnish and Polyester resin, both with a permissible continuous withstand temperature of > 120°C
|
105°C (short time operation 120°C)
|
HELUTHERM® 120
|
| B |
Glass fiber, Mica products, Special synthetic foils, Compressed materials with mineral fillers
|
As under E but with a permissible continuous withstand temperature of > 130°C
|
145°C |
HELUTHERM® 145 |
| F |
Glass fiber, Mica products, Aromatic polyamides, Impregnated glass fiber braids
|
Resins with a permissible continuous withstand temperature of > 155°C
|
155°C
|
HELUTHERM® 145
|
| H |
Glass fiber, Mica products, Aromatic polyamides, Silicone rubber, Polyamide foils, PTFE |
Silicone resins with a permissible continuous withstand temperature of > 180°C |
180°C
|
Silicone + HELUFLON® tinned conductors
|
| C |
Mica, Porcelain, Glass, Quartz, and similar fire resistant materials
|
As under H but with a permissible continuous withstand temperature of > 225°C
|
> 180°C
|
HELUFLON® PTFE+FEP with tinned or nickel plated conductors, HELUTHERM® 400/600/800/1200
|
All-weather, Rubber & Welding
