How to read a cable code: guides per coding system · Mineral insulated cables (MICC, IEC 60702-1 grades) · International (mineral insulated cables)
Mineral insulated cables (MICC, IEC 60702-1 grades): how to read the cable type names
Each name in Mineral insulated cables (MICC, IEC 60702-1 grades) stands for a whole cable type: MICC, for example, comes with its own construction, standard and rating. The decoder knows 57 types of this system. Below: how the names are built, every type with its rating, and the sources the table names.
How a name is built
The type table does not split these names into parts: each name stands for the whole cable type.
Every part used in the names
| Part | Meaning | Used in |
|---|---|---|
| H | Heavy duty grade, 750 V (450/750 V): mineral insulated copper cable; the number before the letter counts the cores, the number after it is the conductor in mm2 | 1H1.5 1H2.5 1H4 1H6 1H10 1H16 1H25 1H35 1H50 1H70 1H95 1H120 1H150 1H185 1H240 1H300 1H400 2H1.5 2H2.5 2H4 2H6 2H10 2H16 2H25 3H1.5 3H2.5 3H4 3H6 3H10 3H16 3H25 4H1.5 4H2.5 4H4 4H6 4H10 4H16 4H25 7H1.5 7H2.5 12H1.5 12H2.5 19H1.5 |
| L | Light duty grade, 500 V (300/500 V): mineral insulated copper cable; the number before the letter counts the cores, the number after it is the conductor in mm2 | 2L1 2L1.5 2L2.5 2L4 3L1 3L1.5 3L2.5 4L1 4L1.5 4L2.5 7L1 7L1.5 7L2.5 |
Every type in Mineral insulated cables (MICC, IEC 60702-1 grades)
| Type | Description | Rating |
|---|---|---|
MICC | MICC: mineral insulated copper sheathed cable (light duty 500 V or heavy duty 750 V) | light duty 500 V, heavy duty 750 V; copper sheath 70 C covered or exposed to touch, 105 C bare and out of reach (IEC 60364-5-52:2009 Table 52.1) |
2L1 | 2L1: mineral insulated copper cable, light duty 500 V, 2 x 1 mm2, 5.1 mm over the copper sheath (6.6 mm with the LSZH covering) | 300/500 V; copper sheath 70 C covered or exposed to touch, 105 C bare and out of reach |
2L1.5 | 2L1.5: mineral insulated copper cable, light duty 500 V, 2 x 1,5 mm2, 5.7 mm over the copper sheath (7.2 mm with the LSZH covering) | 300/500 V; copper sheath 70 C covered or exposed to touch, 105 C bare and out of reach |
2L2.5 | 2L2.5: mineral insulated copper cable, light duty 500 V, 2 x 2,5 mm2, 6.6 mm over the copper sheath (8.1 mm with the LSZH covering) | 300/500 V; copper sheath 70 C covered or exposed to touch, 105 C bare and out of reach |
2L4 | 2L4: mineral insulated copper cable, light duty 500 V, 2 x 4 mm2, 7.7 mm over the copper sheath (9.4 mm with the LSZH covering) | 300/500 V; copper sheath 70 C covered or exposed to touch, 105 C bare and out of reach |
3L1 | 3L1: mineral insulated copper cable, light duty 500 V, 3 x 1 mm2, 5.8 mm over the copper sheath (7.3 mm with the LSZH covering) | 300/500 V; copper sheath 70 C covered or exposed to touch, 105 C bare and out of reach |
3L1.5 | 3L1.5: mineral insulated copper cable, light duty 500 V, 3 x 1,5 mm2, 6.4 mm over the copper sheath (7.9 mm with the LSZH covering) | 300/500 V; copper sheath 70 C covered or exposed to touch, 105 C bare and out of reach |
3L2.5 | 3L2.5: mineral insulated copper cable, light duty 500 V, 3 x 2,5 mm2, 7.3 mm over the copper sheath (9.0 mm with the LSZH covering) | 300/500 V; copper sheath 70 C covered or exposed to touch, 105 C bare and out of reach |
4L1 | 4L1: mineral insulated copper cable, light duty 500 V, 4 x 1 mm2, 6.3 mm over the copper sheath (7.8 mm with the LSZH covering) | 300/500 V; copper sheath 70 C covered or exposed to touch, 105 C bare and out of reach |
4L1.5 | 4L1.5: mineral insulated copper cable, light duty 500 V, 4 x 1,5 mm2, 7.0 mm over the copper sheath (8.5 mm with the LSZH covering) | 300/500 V; copper sheath 70 C covered or exposed to touch, 105 C bare and out of reach |
4L2.5 | 4L2.5: mineral insulated copper cable, light duty 500 V, 4 x 2,5 mm2, 8.1 mm over the copper sheath (9.8 mm with the LSZH covering) | 300/500 V; copper sheath 70 C covered or exposed to touch, 105 C bare and out of reach |
7L1 | 7L1: mineral insulated copper cable, light duty 500 V, 7 x 1 mm2, 7.6 mm over the copper sheath (9.3 mm with the LSZH covering) | 300/500 V; copper sheath 70 C covered or exposed to touch, 105 C bare and out of reach |
7L1.5 | 7L1.5: mineral insulated copper cable, light duty 500 V, 7 x 1,5 mm2, 8.4 mm over the copper sheath (10.1 mm with the LSZH covering) | 300/500 V; copper sheath 70 C covered or exposed to touch, 105 C bare and out of reach |
7L2.5 | 7L2.5: mineral insulated copper cable, light duty 500 V, 7 x 2,5 mm2, 9.7 mm over the copper sheath (11.4 mm with the LSZH covering) | 300/500 V; copper sheath 70 C covered or exposed to touch, 105 C bare and out of reach |
1H1.5 | 1H1.5: mineral insulated copper cable, heavy duty 750 V, 1 x 1,5 mm2, 4.9 mm over the copper sheath (6.2 mm with the LSZH covering) | 450/750 V; copper sheath 70 C covered or exposed to touch, 105 C bare and out of reach |
1H2.5 | 1H2.5: mineral insulated copper cable, heavy duty 750 V, 1 x 2,5 mm2, 5.3 mm over the copper sheath (6.6 mm with the LSZH covering) | 450/750 V; copper sheath 70 C covered or exposed to touch, 105 C bare and out of reach |
1H4 | 1H4: mineral insulated copper cable, heavy duty 750 V, 1 x 4 mm2, 5.9 mm over the copper sheath (7.2 mm with the LSZH covering) | 450/750 V; copper sheath 70 C covered or exposed to touch, 105 C bare and out of reach |
1H6 | 1H6: mineral insulated copper cable, heavy duty 750 V, 1 x 6 mm2, 6.4 mm over the copper sheath (7.7 mm with the LSZH covering) | 450/750 V; copper sheath 70 C covered or exposed to touch, 105 C bare and out of reach |
1H10 | 1H10: mineral insulated copper cable, heavy duty 750 V, 1 x 10 mm2, 7.3 mm over the copper sheath (9.0 mm with the LSZH covering) | 450/750 V; copper sheath 70 C covered or exposed to touch, 105 C bare and out of reach |
1H16 | 1H16: mineral insulated copper cable, heavy duty 750 V, 1 x 16 mm2, 8.3 mm over the copper sheath (10.0 mm with the LSZH covering) | 450/750 V; copper sheath 70 C covered or exposed to touch, 105 C bare and out of reach |
1H25 | 1H25: mineral insulated copper cable, heavy duty 750 V, 1 x 25 mm2, 9.6 mm over the copper sheath (11.3 mm with the LSZH covering) | 450/750 V; copper sheath 70 C covered or exposed to touch, 105 C bare and out of reach |
1H35 | 1H35: mineral insulated copper cable, heavy duty 750 V, 1 x 35 mm2, 10.7 mm over the copper sheath (12.4 mm with the LSZH covering) | 450/750 V; copper sheath 70 C covered or exposed to touch, 105 C bare and out of reach |
1H50 | 1H50: mineral insulated copper cable, heavy duty 750 V, 1 x 50 mm2, 12.1 mm over the copper sheath (13.8 mm with the LSZH covering) | 450/750 V; copper sheath 70 C covered or exposed to touch, 105 C bare and out of reach |
1H70 | 1H70: mineral insulated copper cable, heavy duty 750 V, 1 x 70 mm2, 13.7 mm over the copper sheath (15.4 mm with the LSZH covering) | 450/750 V; copper sheath 70 C covered or exposed to touch, 105 C bare and out of reach |
1H95 | 1H95: mineral insulated copper cable, heavy duty 750 V, 1 x 95 mm2, 15.4 mm over the copper sheath (17.7 mm with the LSZH covering) | 450/750 V; copper sheath 70 C covered or exposed to touch, 105 C bare and out of reach |
1H120 | 1H120: mineral insulated copper cable, heavy duty 750 V, 1 x 120 mm2, 16.8 mm over the copper sheath (19.1 mm with the LSZH covering) | 450/750 V; copper sheath 70 C covered or exposed to touch, 105 C bare and out of reach |
1H150 | 1H150: mineral insulated copper cable, heavy duty 750 V, 1 x 150 mm2, 18.4 mm over the copper sheath (20.7 mm with the LSZH covering) | 450/750 V; copper sheath 70 C covered or exposed to touch, 105 C bare and out of reach |
1H185 | 1H185: mineral insulated copper cable, heavy duty 750 V, 1 x 185 mm2, 20.4 mm over the copper sheath (23.2 mm with the LSZH covering) | 450/750 V; copper sheath 70 C covered or exposed to touch, 105 C bare and out of reach |
1H240 | 1H240: mineral insulated copper cable, heavy duty 750 V, 1 x 240 mm2, 23.3 mm over the copper sheath (26.1 mm with the LSZH covering) | 450/750 V; copper sheath 70 C covered or exposed to touch, 105 C bare and out of reach |
1H300 | 1H300: mineral insulated copper cable, heavy duty 750 V, 1 x 300 mm2, 26.0 mm over the copper sheath (28.8 mm with the LSZH covering) | 450/750 V; copper sheath 70 C covered or exposed to touch, 105 C bare and out of reach |
1H400 | 1H400: mineral insulated copper cable, heavy duty 750 V, 1 x 400 mm2, 30.0 mm over the copper sheath (32.8 mm with the LSZH covering) | 450/750 V; copper sheath 70 C covered or exposed to touch, 105 C bare and out of reach |
2H1.5 | 2H1.5: mineral insulated copper cable, heavy duty 750 V, 2 x 1,5 mm2, 7.9 mm over the copper sheath (9.6 mm with the LSZH covering) | 450/750 V; copper sheath 70 C covered or exposed to touch, 105 C bare and out of reach |
2H2.5 | 2H2.5: mineral insulated copper cable, heavy duty 750 V, 2 x 2,5 mm2, 8.7 mm over the copper sheath (10.4 mm with the LSZH covering) | 450/750 V; copper sheath 70 C covered or exposed to touch, 105 C bare and out of reach |
2H4 | 2H4: mineral insulated copper cable, heavy duty 750 V, 2 x 4 mm2, 9.8 mm over the copper sheath (11.5 mm with the LSZH covering) | 450/750 V; copper sheath 70 C covered or exposed to touch, 105 C bare and out of reach |
2H6 | 2H6: mineral insulated copper cable, heavy duty 750 V, 2 x 6 mm2, 10.9 mm over the copper sheath (12.6 mm with the LSZH covering) | 450/750 V; copper sheath 70 C covered or exposed to touch, 105 C bare and out of reach |
2H10 | 2H10: mineral insulated copper cable, heavy duty 750 V, 2 x 10 mm2, 12.7 mm over the copper sheath (14.4 mm with the LSZH covering) | 450/750 V; copper sheath 70 C covered or exposed to touch, 105 C bare and out of reach |
2H16 | 2H16: mineral insulated copper cable, heavy duty 750 V, 2 x 16 mm2, 14.7 mm over the copper sheath (16.4 mm with the LSZH covering) | 450/750 V; copper sheath 70 C covered or exposed to touch, 105 C bare and out of reach |
2H25 | 2H25: mineral insulated copper cable, heavy duty 750 V, 2 x 25 mm2, 17.1 mm over the copper sheath (19.4 mm with the LSZH covering) | 450/750 V; copper sheath 70 C covered or exposed to touch, 105 C bare and out of reach |
3H1.5 | 3H1.5: mineral insulated copper cable, heavy duty 750 V, 3 x 1,5 mm2, 8.3 mm over the copper sheath (10.0 mm with the LSZH covering) | 450/750 V; copper sheath 70 C covered or exposed to touch, 105 C bare and out of reach |
3H2.5 | 3H2.5: mineral insulated copper cable, heavy duty 750 V, 3 x 2,5 mm2, 9.3 mm over the copper sheath (11.0 mm with the LSZH covering) | 450/750 V; copper sheath 70 C covered or exposed to touch, 105 C bare and out of reach |
3H4 | 3H4: mineral insulated copper cable, heavy duty 750 V, 3 x 4 mm2, 10.4 mm over the copper sheath (12.1 mm with the LSZH covering) | 450/750 V; copper sheath 70 C covered or exposed to touch, 105 C bare and out of reach |
3H6 | 3H6: mineral insulated copper cable, heavy duty 750 V, 3 x 6 mm2, 11.5 mm over the copper sheath (13.2 mm with the LSZH covering) | 450/750 V; copper sheath 70 C covered or exposed to touch, 105 C bare and out of reach |
3H10 | 3H10: mineral insulated copper cable, heavy duty 750 V, 3 x 10 mm2, 13.6 mm over the copper sheath (15.3 mm with the LSZH covering) | 450/750 V; copper sheath 70 C covered or exposed to touch, 105 C bare and out of reach |
3H16 | 3H16: mineral insulated copper cable, heavy duty 750 V, 3 x 16 mm2, 15.6 mm over the copper sheath (17.9 mm with the LSZH covering) | 450/750 V; copper sheath 70 C covered or exposed to touch, 105 C bare and out of reach |
3H25 | 3H25: mineral insulated copper cable, heavy duty 750 V, 3 x 25 mm2, 18.2 mm over the copper sheath (20.5 mm with the LSZH covering) | 450/750 V; copper sheath 70 C covered or exposed to touch, 105 C bare and out of reach |
4H1.5 | 4H1.5: mineral insulated copper cable, heavy duty 750 V, 4 x 1,5 mm2, 9.1 mm over the copper sheath (10.8 mm with the LSZH covering) | 450/750 V; copper sheath 70 C covered or exposed to touch, 105 C bare and out of reach |
4H2.5 | 4H2.5: mineral insulated copper cable, heavy duty 750 V, 4 x 2,5 mm2, 10.1 mm over the copper sheath (11.8 mm with the LSZH covering) | 450/750 V; copper sheath 70 C covered or exposed to touch, 105 C bare and out of reach |
4H4 | 4H4: mineral insulated copper cable, heavy duty 750 V, 4 x 4 mm2, 11.4 mm over the copper sheath (13.1 mm with the LSZH covering) | 450/750 V; copper sheath 70 C covered or exposed to touch, 105 C bare and out of reach |
4H6 | 4H6: mineral insulated copper cable, heavy duty 750 V, 4 x 6 mm2, 12.7 mm over the copper sheath (14.4 mm with the LSZH covering) | 450/750 V; copper sheath 70 C covered or exposed to touch, 105 C bare and out of reach |
4H10 | 4H10: mineral insulated copper cable, heavy duty 750 V, 4 x 10 mm2, 14.8 mm over the copper sheath (16.5 mm with the LSZH covering) | 450/750 V; copper sheath 70 C covered or exposed to touch, 105 C bare and out of reach |
4H16 | 4H16: mineral insulated copper cable, heavy duty 750 V, 4 x 16 mm2, 17.3 mm over the copper sheath (19.6 mm with the LSZH covering) | 450/750 V; copper sheath 70 C covered or exposed to touch, 105 C bare and out of reach |
4H25 | 4H25: mineral insulated copper cable, heavy duty 750 V, 4 x 25 mm2, 20.1 mm over the copper sheath (22.9 mm with the LSZH covering) | 450/750 V; copper sheath 70 C covered or exposed to touch, 105 C bare and out of reach |
7H1.5 | 7H1.5: mineral insulated copper cable, heavy duty 750 V, 7 x 1,5 mm2, 10.8 mm over the copper sheath (12.5 mm with the LSZH covering) | 450/750 V; copper sheath 70 C covered or exposed to touch, 105 C bare and out of reach |
7H2.5 | 7H2.5: mineral insulated copper cable, heavy duty 750 V, 7 x 2,5 mm2, 12.1 mm over the copper sheath (13.8 mm with the LSZH covering) | 450/750 V; copper sheath 70 C covered or exposed to touch, 105 C bare and out of reach |
12H1.5 | 12H1.5: mineral insulated copper cable, heavy duty 750 V, 12 x 1,5 mm2, 14.1 mm over the copper sheath (15.8 mm with the LSZH covering) | 450/750 V; copper sheath 70 C covered or exposed to touch, 105 C bare and out of reach |
12H2.5 | 12H2.5: mineral insulated copper cable, heavy duty 750 V, 12 x 2,5 mm2, 15.6 mm over the copper sheath (17.9 mm with the LSZH covering) | 450/750 V; copper sheath 70 C covered or exposed to touch, 105 C bare and out of reach |
19H1.5 | 19H1.5: mineral insulated copper cable, heavy duty 750 V, 19 x 1,5 mm2, 16.6 mm over the copper sheath (18.9 mm with the LSZH covering) | 450/750 V; copper sheath 70 C covered or exposed to touch, 105 C bare and out of reach |
Common questions
What is MICC cable?
MICC: mineral insulated copper sheathed cable (light duty 500 V or heavy duty 750 V). Rating: light duty 500 V, heavy duty 750 V; copper sheath 70 C covered or exposed to touch, 105 C bare and out of reach (IEC 60364-5-52:2009 Table 52.1). Standard: IEC 60702-1 / BS EN 60702-1 (as the makers cite it; not held here).
What is 2L1 cable?
2L1: mineral insulated copper cable, light duty 500 V, 2 x 1 mm2, 5.1 mm over the copper sheath (6.6 mm with the LSZH covering). Rating: 300/500 V; copper sheath 70 C covered or exposed to touch, 105 C bare and out of reach. Standard: IEC 60702-1 / BS EN 60702-1 (as the makers cite it; not held here).
Mineral insulated cables (MICC, IEC 60702-1 grades): what does H mean in a cable name?
H means: Heavy duty grade, 750 V (450/750 V): mineral insulated copper cable; the number before the letter counts the cores, the number after it is the conductor in mm2. Used in 1H1.5, 1H2.5, 1H4, 1H6, 1H10, 1H16, 1H25, 1H35 +35.
What is 2L1.5 cable?
2L1.5: mineral insulated copper cable, light duty 500 V, 2 x 1,5 mm2, 5.7 mm over the copper sheath (7.2 mm with the LSZH covering). Rating: 300/500 V; copper sheath 70 C covered or exposed to touch, 105 C bare and out of reach. Standard: IEC 60702-1 / BS EN 60702-1 (as the makers cite it; not held here).
What is 2L2.5 cable?
2L2.5: mineral insulated copper cable, light duty 500 V, 2 x 2,5 mm2, 6.6 mm over the copper sheath (8.1 mm with the LSZH covering). Rating: 300/500 V; copper sheath 70 C covered or exposed to touch, 105 C bare and out of reach. Standard: IEC 60702-1 / BS EN 60702-1 (as the makers cite it; not held here).
What is 2L4 cable?
2L4: mineral insulated copper cable, light duty 500 V, 2 x 4 mm2, 7.7 mm over the copper sheath (9.4 mm with the LSZH covering). Rating: 300/500 V; copper sheath 70 C covered or exposed to touch, 105 C bare and out of reach. Standard: IEC 60702-1 / BS EN 60702-1 (as the makers cite it; not held here).
Sources the type table names
Standards named in the table
- IEC 60702-1 / BS EN 60702-1 (as the makers cite it
- not held here)
Documents and pages the readings were taken from
- Wrexham Mineral Cables, Wrexham Mineral Cables catalogue, Standard Conductor Cable tables, pp. 20 to 21: https://electricaldirect-assets.s3.amazonaws.com/product-documentation/technical/835702.pdf [seen: manufacturer]
- nVent Pyrotenax, nVent Pyrotenax MI Wiring Cable System brochure, Pyro MI Cable System Data, p. 10: https://www.topazfiresystems.com/images/special-systems/micc/MICC%20Cable.pdf [seen: manufacturer]
- KME Italy, KME Italy MICO mineral insulated cables brochure, Cable technical data, p. 10: https://www.kme.com/fileadmin/DOWNLOADCENTER/COPPER%20DIVISON/6._Mineral_Insulated_Cables/Mineral_Insulated_Cables_Manuals_KME_Italy_Spa/Brochure_KME_Italy_MICO_Mineral_Insultated_Cables.pdf [seen: manufacturer]
Taken from the type table of this site, with the sources named above. Check the manufacturer's datasheet before you specify a cable.
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