SiHF

Company Name

Business Email

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Required Quantity

Required Delivery

Additional Requirements

Armoured Cables: 2 Properties

Building wires: 6 Properties

Control Cables: 3 Properties

Data & Communication Cables: 5 Properties

EV Charging Cables: 3 Properties

Fibre optic cables: 1 Property

Fire Performance Cables: 3 Properties

Flexible wires: 6 Properties

Instrumentation Cables: 2 Properties

Photovoltaic: 1 Property

Power cables 1 - 30 kV: 15 Properties

Technical Specifications

SiHF-J / SiHF-O
Cable Type

High Temperature Flexible Connections
Application

IEC 60228 / IEC 60332-1-2 / IEC 60754 / VDE 0293
Standard

Details

Insulation Material Silicone Rubber
Packaging Coils / Wooden Drums
Availability Stock

Cable Configuration SiHF-J / SiHF-O
Conductor Type Class 5 Tinned Copper
Insulation Silicone Rubber
Outer Sheath Silicone Rubber
Rated Voltage 300/500 V
Maximum Conductor Temperature +180°C
Fixed Installation Temperature -60°C to +180°C
Flame Retardance IEC 60332-1-2
Halogen-Free IEC 60754
UV Resistance No

Conductor Material Tinned Copper
Cable Group Flexible wires
Insulation Material Silicone Rubber
Rated Voltage 300/500 V
Standard IEC 60228 / IEC 60332-1-2 / IEC 60754 / VDE 0293

SiHF · HIGH-TEMPERATURE SILICONE RUBBER FLEXIBLE CABLE

SiHF Silicone Rubber Flexible Cable 300/500 V

SiHF is a flexible silicone rubber cable for connecting movable electrical equipment under low mechanical stress and high ambient temperatures. It features finely stranded tinned copper conductors (Class 5), silicone rubber insulation and a silicone rubber outer sheath.

Suitable for industrial equipment, steelworks and cold environments. The insulation and sheath are resistant to oils, greases, acids, alkalis and oxidising agents. Available as SiHF-J (with protective conductor) and SiHF-O (without protective conductor).

300/500 VRated Voltage

Tinned CuConductor

Class 5Flexibility

SiliconeInsulation / Sheath

+180°CMax. Temperature

Construction

TINNED CU / SILICONE / SILICONE

Conductor

Finely stranded tinned copper, Class 5

Conductor Standard

DIN EN IEC 60228 (VDE 0295)

Core Insulation

Silicone rubber

Core Identification

Colours according to VDE 0293; numbered cores for multicore SiHF-J

Outer Sheath

Silicone rubber; red catalogue construction

Cable Variants

SiHF-J with green/yellow protective conductor; SiHF-O without protective conductor

Technical Data

Electrical and installation characteristics

Rated Voltage U₀/U300/500 V

Test Voltage2 kV

Maximum Permissible Conductor Temperature+180°C

Fixed Installation Temperature−60°C to +180°C

Minimum Bending Radius – Fixed5 × D

Minimum Bending Radius – Moving15 × D

Insulation Resistance200 MΩ·km

Flame RetardanceIEC 60332-1-2

Halogen-FreeIEC 60754

Oil ResistanceYes

UV ResistanceNo

CPR ClassificationNot specified

Standards

Applicable conductor and test standards

IEC 60228Class 5 copper conductors

IEC 60332-1-2Single-cable flame propagation

IEC 60754Halogen-related gas testing

VDE 0293Core identification

Applications

High-temperature flexible electrical connections

Industrial EquipmentConnections to movable equipment under low mechanical stress.

SteelworksUse in steel and metallurgical plants.

High TemperaturesApplications exposed to elevated ambient temperatures.

Cold EnvironmentsFixed installations exposed to very low temperatures.

Chemical ExposureEnvironments with oils, greases, acids, alkalis and oxidising agents.

Machinery ConnectionsFlexible connections where silicone insulation and sheath are required.

SiHF · TINNED CU / SILICONE / SILICONE SiHF-J includes a protective conductor; SiHF-O does not. Dimensions and weights are approximate. Current ratings refer to installation in air at 30°C. Not UV resistant. Availability and final technical data subject to confirmation.

SiHF · CABLE DIMENSIONS

Available Cable Sizes

Technical dimensions for SiHF-J and SiHF-O silicone rubber cables. Values are indicative; dimensions and weights are approximate.

300/500 VRated Voltage

Class 5Tinned Copper

SiHF-JWith PE Conductor

SiHF-OWithout PE

30°CCurrent Rating in Air

SiHF-J – With Protective Conductor

Catalogue dimensions with protective conductor

Size (mm²)	Resistance (Ω/km)	Current in Air (A)	Diameter (mm)	Copper (kg/km)	Weight (kg/km)
3×0.5	40.1	9	5.9	14.4	42
4×0.5	40.1	9	6.6	19.2	54
5×0.5	40.1	9	7.3	24	62
7×0.5	40.1	9	8.1	34	82
10×0.5	40.1	9	10.4	48.1	124
12×0.5	40.1	9	10.8	57.6	141
16×0.5	40.1	9	12.3	76.8	186
18×0.5	40.1	9	12.9	86.5	211
3×0.75	26.7	12	6.3	21.6	66
4×0.75	26.7	12	7.1	28.8	84
5×0.75	26.7	12	7.7	36	101
6×0.75	26.7	12	9.4	43.2	126
7×0.75	26.7	12	8.7	50.4	158
12×0.75	26.7	12	11.5	86.5	178
18×0.75	26.7	12	14.2	130	260
25×0.75	26.7	12	16.7	180	370
3×1	20	15	6.7	28.8	78
4×1	20	15	7.4	38.4	95
5×1	20	15	8.5	48	116
7×1	20	15	9.2	67.2	177
12×1	20	15	12.5	115.2	256
16×1	20	15	14.3	154	302
18×1	20	15	15.1	172.9	374
20×1	20	15	15.4	192	400
25×1	20	15	17.8	240	431
3×1.5	13.7	18	7.8	43.2	98
4×1.5	13.7	18	8.9	57.6	122
5×1.5	13.7	18	9.9	72	148
7×1.5	13.7	18	10.8	101	232
8×1.5	13.7	18	11.6	115.2	213
12×1.5	13.7	18	15	172.8	332
18×1.5	13.7	18	17.6	259.2	510
20×1.5	13.7	18	18.3	288	549
24×1.5	13.7	18	20.2	345.6	635
25×1.5	13.7	18	20.8	360	449
3×2.5	8.21	26	9.6	72	152
4×2.5	8.21	26	10.5	96	189
5×2.5	8.21	26	11.4	120	229
7×2.5	8.21	26	12.8	168	348
12×2.5	8.21	26	17.8	288	530
16×2.5	8.21	26	19.1	384	659
19×2.5	8.21	26	21	456	912
21×2.5	8.21	26	23	504	1008
25×2.5	8.21	26	25.7	600	1200
3×4	5.09	34	11.2	115	249
4×4	5.09	34	12.6	154	330
5×4	5.09	34	14.4	192	359
7×4	5.09	34	16	269	487
3×6	3.39	44	13.6	173	352
4×6	3.39	44	14.8	230	429
5×6	3.39	44	16.6	288	564
7×6	3.39	44	18.2	403	685
4×10	1.95	61	18.9	384	710
4×16	1.24	82	22.9	615	1014
4×25	0.795	108	27.2	960	1460
4×35	0.565	135	30.2	1344	2044
4×50	0.393	168	34	1920	2990
4×70	0.277	207	44.5	2688	3550
4×95	0.21	250	51	3648	4800
5×10	1.95	61	21.2	480	900
5×16	1.24	82	26.9	768	1206
5×25	0.795	108	29.2	1200	2029
5×35	0.565	135	36.7	1680	2850

SiHF-O – Without Protective Conductor

Catalogue dimensions without protective conductor

Size (mm²)	Resistance (Ω/km)	Current in Air (A)	Diameter (mm)	Copper (kg/km)	Weight (kg/km)
2×0.75	26.7	12	6	14.4	57
3×0.75	26.7	12	6.3	21.6	66
2×1	20	15	6.3	19.2	64
2×1.5	13.7	18	7.4	28.8	87
2×2.5	8.21	26	8.9	48	137
2×4	5.09	34	10.6	76.8	192
2×6	3.39	44	12.3	116	289

SiHF · TECHNICAL SIZE DATA Current ratings apply to air at 30°C. Copper figures and cable weights are expressed in kg/km. Dimensions and weights are approximate. Availability and final specifications subject to confirmation.