Flexible Silicone Multicore Cable 300/500 V

This flexible silicone multicore cable combines Class 5 tinned copper conductors with silicone core insulation and a heat-resistant silicone outer sheath. It provides dependable operation in high-temperature industrial environments while remaining flexible at low temperatures.

Key Highlights

Flexible multicore construction · 300/500 V rated · Heat-resistant silicone insulation and outer sheath · Halogen-free · Low-temperature flexibility · Flame-retardant and self-extinguishing · Non-corrosive combustion gases · Very good weather resistance · Wide core and conductor-size range · RoHS compliant · PFAS-free option

Application
Construction
Technical Data
Dimensions
Packaging

Suitable for power, control, measurement and signal connections in industrial equipment exposed to heat, cold or changing ambient temperatures.

Typical applications include:

Packaging and textile machinery
Refrigeration and HVAC equipment
Plastics processing machinery
Smelteries, steelworks and hot-rolling mills
Cement, glass and ceramic production
Industrial ovens and heating systems
Safety, measurement and control equipment
Power plants and sauna equipment

Conductor: Flexible tinned copper strands, Class 5 according to IEC 60228 and EN 60228
Core insulation: Heat-resistant silicone compound, EI2 type
Core identification: Colors according to HD 308 for up to five cores
Six cores and above: Black cores with consecutive white numbers
Protective conductor: Green/yellow core included from three cores where specified
Core arrangement: Stranded in layers
Outer sheath: Heat-resistant silicone compound, EM9 type
Standard sheath color: Reddish brown, similar to RAL 3016

Nominal voltage: U₀/U 300/500 V
Testing voltage: 2000 V core to core
Minimum bending radius, fixed: 4 × cable diameter
Minimum bending radius, flexible: 6 × cable diameter
Fixed temperature range: -40°C to +180°C
Flexible temperature range: -25°C to +180°C
Short-time temperature: Up to +250°C
Radiation resistance: 2 × 10⁷ cJ/kg
Halogen-free performance: IEC 60754-1
Flame retardant and self-extinguishing: IEC 60332-1-2
Non-corrosive combustion gases: IEC 60754-2
Weather resistance: Very good
RoHS compliant
PFAS-free configuration available

Approximate outer diameters are subject to a tolerance of ±10%.

Cores × Cross Section (mm²)	Largest Single Wire Ø (mm)	Copper Weight (kg/km)	Approx. Cable Weight (kg/km)	Approx. Outer Ø (mm)
2 × 0.25	0.16	4.8	23	4.3
4 × 0.25	0.16	9.6	32	4.9
2 × 0.50	0.21	9.6	31	4.8
3 × 0.50	0.21	14.4	37	5.1
4 × 0.50	0.21	19.2	45	5.5
5 × 0.50	0.21	24.0	53	6.1
7 × 0.50	0.21	33.6	69	6.6
12 × 0.50	0.21	57.6	113	8.9
18 × 0.50	0.21	86.4	164	10.6
25 × 0.50	0.21	120.0	225	12.9
2 × 0.75	0.21	14.4	41	5.4
3 × 0.75	0.21	21.6	49	5.7
4 × 0.75	0.21	28.8	60	6.2
5 × 0.75	0.21	36.0	72	6.9
6 × 0.75	0.21	43.2	86	7.7
7 × 0.75	0.21	50.4	96	7.7
10 × 0.75	0.21	57.6	136	10.0
12 × 0.75	0.21	86.4	157	10.3
16 × 0.75	0.21	115.2	201	11.5
18 × 0.75	0.21	129.6	228	13.2
25 × 0.75	0.21	180.0	314	14.9
2 × 1.00	0.21	19.2	46	5.6
3 × 1.00	0.21	28.8	57	5.9
4 × 1.00	0.21	38.4	70	6.5
5 × 1.00	0.21	48.0	84	7.1
6 × 1.00	0.21	57.6	101	8.0
7 × 1.00	0.21	67.2	113	8.0
8 × 1.00	0.21	76.8	129	9.3
10 × 1.00	0.21	96.0	160	10.4
12 × 1.00	0.21	115.2	185	10.7
14 × 1.00	0.21	134.4	211	11.3
16 × 1.00	0.21	153.6	242	11.9
18 × 1.00	0.21	172.8	270	12.8
20 × 1.00	0.21	192.0	296	13.5
25 × 1.00	0.21	240.0	369	15.5
2 × 1.50	0.26	28.8	62	6.6
3 × 1.50	0.26	43.2	80	7.0
4 × 1.50	0.26	57.6	102	7.8
5 × 1.50	0.26	72.0	121	8.6
6 × 1.50	0.26	86.4	142	9.4
7 × 1.50	0.26	100.8	158	9.4
8 × 1.50	0.26	115.2	187	11.2
12 × 1.50	0.26	172.8	265	12.8
16 × 1.50	0.26	230.4	352	14.6
18 × 1.50	0.26	259.2	391	15.4
20 × 1.50	0.26	288.0	429	16.2
24 × 1.50	0.26	345.6	520	18.2
25 × 1.50	0.26	360.0	539	18.6
2 × 2.50	0.26	48.0	99	8.0
3 × 2.50	0.26	72.0	123	8.5
4 × 2.50	0.26	96.0	153	9.3
5 × 2.50	0.26	120.0	192	10.6
6 × 2.50	0.26	144.0	224	11.6
7 × 2.50	0.26	168.0	251	11.6
9 × 2.50	0.26	216.0	333	15.2
12 × 2.50	0.26	288.0	417	15.7
24 × 2.50	0.26	576.0	813	22.4
2 × 4.00	0.31	76.8	148	9.6
3 × 4.00	0.31	115.2	186	10.2
4 × 4.00	0.31	153.6	230	11.1
5 × 4.00	0.31	192.0	282	12.5
7 × 4.00	0.31	230.4	371	13.6
2 × 6.00	0.31	115.2	201	10.8
3 × 6.00	0.31	172.8	254	11.4
4 × 6.00	0.31	230.4	317	12.5
5 × 6.00	0.31	288.0	383	13.8
4 × 10.00	0.41	384.0	556	16.8
5 × 10.00	0.41	480.0	679	18.7
4 × 16.00	0.41	614.4	820	20.3
4 × 25.00	0.41	960.0	1330	25.4
4 × 35.00	0.41	1344.0	1800	28.8

Other core counts, conductor sizes, sheath colors and customized dimensions are available on request.

hulk packing

About Hulk Electric

THE FACTORY
BEHIND EVERY METER

Founded in 2007 in Foshan, Guangdong, Hulk Electric has grown from a regional producer into a globally recognised manufacturer of customised industrial cable solutions. Our 10,000㎡ facility runs on Toyota Production System lean principles, operated by 150+ skilled professionals producing over 300,000 metres every month.

Every cable you see on this page — including the HK-TRVV series — is engineered, extruded, tested, and shipped from that single facility. No trading company sits between you and the extrusion line.

20+Years Manufacturing

30+Countries Served

10K㎡Factory Floor

35+Certifications

About Our Factory Talk to an Engineer

Source Factory

Direct manufacturer — no middlemen, no markups. You deal with the engineers who run the line.

Deep Customization

Conductor, shielding, jacket compound, colour coding, certification — built to your exact spec.

7-Day Sampling

Rapid samples for new specifications. 15-day lead time on standard production orders.

Global Compliance

35+ certifications covering UL, CE, TÜV, IEC, RoHS and REACH for every major market.

Common Questions

BEFORE YOU ORDER

For stocked configurations listed in the ordering table, MOQ is 100 metres per specification. Custom configurations — non-standard core counts, jacket colours, or special compounds — carry a 500 metre MOQ. Samples of 5–10 metres are available free of charge for qualification testing.

Use shielded (P or PP suffix) whenever the cable runs alongside servo drives, VFDs, or inverters, or when carrying encoder, sensor, or analogue signals. Unshielded is suitable for pure power distribution and simple on/off control lines. If in doubt, our engineering team can review your cabinet layout and advise — this is included with any quotation.

Yes. Send us the existing part number or a sample and we will produce a cross-reference specification with matching electrical, mechanical, and dimensional characteristics. Most cross-references are turned around within 3 working days, with a physical sample following within 7 days.

Standard shipments include the CE Declaration of Conformity, RoHS and REACH statements, and the batch test report. UL Recognition (UL 2464 / UL 20549) is available on request for North American projects — specify this at the quotation stage as it affects the material specification.

Standard configurations ship in 15 working days from order confirmation. Custom-engineered specifications typically require 20–25 working days, depending on compound availability. Rapid sampling for new specifications is 7 days. We will confirm the exact date in writing with your order acknowledgement.

Get a Quotation

SEND US YOUR
SPECIFICATION

Tell us your core count, cross-section, and application — our engineering team will confirm the right configuration and send pricing within one working day.

Reply within 1 working day

Free samples for qualification

Cross-reference from any brand

Direct factory pricing — no middlemen