H03S-K Cable for High Temperature Appliance Wiring
H03S-K cable is a 300/300V single core silicone rubber insulated wire used for fixed electrical connections in places with high temperatures. It is commonly selected for ovens, electric cookers and similar appliance wiring where a compact, flexible and heat resistant cable is required.
Key Features
- High temperature operation: Rated from -60°C to +180°C for appliance wiring and fixed high temperature connections.
- Silicone rubber insulation: Provides heat resistance and flexibility where standard PVC insulated wire may not be suitable.
- Flexible Class 5 conductor: Available with bare or tinned copper conductor for easier installation in compact appliance spaces.
- Short circuit withstand: Maximum short circuit temperature of 350°C for up to 5 seconds.
- Small conductor sizes: Available from 0.5mm² to 2.5mm² for appliance and internal equipment wiring.
- Multiple colour options: Supports circuit identification with black, blue, brown, grey, orange, pink, red, turquoise, violet, white, green, yellow and green/yellow.
Technical Specifications
| Product Name | H03S-K Single Core Silicone Rubber High Temperature Cable |
| Cable Type | Single core non-sheathed silicone insulated cable |
| Voltage Rating | 300/300V |
| Test Voltage | 2kV |
| Temperature Rating | Operating: -60°C to +180°C |
| Short Circuit Temperature | 350°C maximum, up to 5 seconds |
| Conductor | Class 5 flexible bare or tinned copper |
| Insulation | Silicone rubber |
| Size Range | 0.5mm², 0.75mm², 1mm², 1.5mm² and 2.5mm² |
| Minimum Bending Radius | 5 x overall diameter |
| Standards | EN 50525-2-41, EN 60228, EN 50363-1, IEC/EN 60724 |
Cable Construction
- Conductor: Class 5 flexible bare copper or tinned copper conductor.
- Insulation: Silicone rubber insulation for high temperature electrical connections.
- Colour Options: Black, blue, brown, grey, orange, pink, red, turquoise, violet, white, green, yellow and green/yellow.
Applications
- Fixed wiring in ovens
- Electric cooker internal connections
- High temperature appliance wiring
- Electrical equipment requiring compact silicone insulated wire
- Fixed installations in areas exposed to high operating temperatures
Available Sizes
H03S-K cable is available in 0.5mm², 0.75mm², 1mm², 1.5mm² and 2.5mm². Nominal overall diameters range from approximately 2.1mm to 3.6mm, depending on conductor size and construction.
Why Choose H03S-K Silicone Cable
H03S-K cable is suitable for manufacturers, appliance repair teams and electrical buyers who need a reliable high temperature wire for compact fixed connections. Its silicone rubber insulation, flexible Class 5 conductor and recognised EN standards make it a practical choice for ovens, cookers and other high temperature appliance wiring.
FAQ
What is H03S-K cable used for?
H03S-K cable is used for fixed electrical connections in high temperature areas, especially ovens, electric cookers and high temperature appliances.
What temperature can H03S-K silicone cable withstand?
The cable has an operating temperature range from -60°C to +180°C, with a maximum short circuit temperature of 350°C for up to 5 seconds.
Is H03S-K cable sheathed?
No. H03S-K is a single core non-sheathed cable with silicone rubber insulation.
What conductor options are available?
The cable uses a Class 5 flexible conductor and can be supplied with bare copper or tinned copper, depending on the required specification.



