CU/LSZH/LSZH are the electric cables referred to thermosetting insulated and thermoplastic sheathed cables for voltage 450/750V electric power and lighting and having low emission of the smoke and corrosive gases when affected by the fire.

625-B refers to thermosetting insulated and sheathed cables, single core 6241B cable, flat twin-core 6242B cable, flat 3-core 6243B cable, with circuit protective conductor (CPC) 300/500V. The conductor is annealed copper conductor of class 1 or class 2. The maximum size is up to and including 16 mm². We supply the cables according to BS7211.
6242B 6243B LSZH Flat Cores +Earth Cable Parameter
AWG No. of Cores x Nominal Cross Sectional Area Nominal thickness of insulation Nominal thickness of sheath Nominal overall dimensions Circuit protective conductor Nominal Weight Minimum insulation resistance at 90 °C
# x mm² mm mm lower limit
mm upper limit mm AWG kg/km MΩ·km
17 1 × 1.0 0.7 0.9 4.1 × 5.2 5.0 × 6.3 17 45 0.011
16 1 × 1.5 0.7 0.9 4.4 × 5.4 5.3 × 6.6 17 55 0.011
6242B
17 2 × 1.0 0.7 0.9 4.1 × 7.6 5.0 × 9.1 17 68 0.011
17(7/26) 2 × 1.0 0.7 0.9 4.2 × 7.8 5.1 × 9.4 17 73 0.011
16 2 × 1.5 0.7 0.9 4.4 × 8.1 5.3 × 9.7 17 85 0.011
16(7/24) 2 × 1.5 0.7 0.9 4.5 × 8.3 5.4 × 10.0 17 90 0.011
14 2 × 2.5 0.7 1.0 4.9 × 9.3 6.0 × 11.2 16 120 0.0092
14(7/22) 2 × 2.5 0.7 1.0 5.0 × 9.5 6.1 × 11.4 16 125 0.0084
12(7/20) 2 × 4 0.7 1.0 5.5 × 10.4 6.7 × 12.6 16 175 0.0070
10(7/18) 2 × 6 0.7 1.1 6.2 × 12.0 7.5 × 14.6 14 240 0.0059
8(7/16) 2 × 10 0.7 1.2 7.3 × 14.5 8.8 × 17.6 12(7/20) 390 0.0047
6(7/14) 2 × 16 0.7 1.3 8.4 × 17.0 10.1 × 20.5 10(7/18) 560 0.0039
6243B
17 3 × 1.0 0.7 0.9 4.1 × 10.0 5.1 × 12.1 17 91 0.011
16 3 × 1.5 0.7 0.9 4.4 × 10.7 5.3 × 12.9 17 115 0.011
14 3 × 2.5 0.7 1.0 4.9 × 12.0 6.0 × 14.6 17 170 0.0092
12(7/20) 3 × 4 0.7 1.0 5.5 × 14.0 6.7 × 16.9 16 196 0.0070
10(7/18) 3 × 6 0.7 1.1 6.2 × 16.2 7.5 × 19.5 14 291 0.0059
8(7/16) 3 × 10 0.7 1.2 7.3 × 19.5 8.8 × 23.6 12(7/20) 440 0.0047
6(7/14) 3 × 16 0.7 1.3 8.4 × 22.8 10.1 × 27.6 10(7/18) 670 0.0039

Description of 6242B 6243B LSZH Flat Cores +Earth Cable
Rated voltage: 300/500v

Test voltage: 2000 volts

Max Flexing bending radius: 15 x Ø

Operating temperature: +5 ºC to +90 ºC

Short circuit temperature: +250 ºC

Flame retardant standard: IEC 60332.1

Smoke density acc. to EN 50268 / IEC 61034

Flame test and Flame-retardant according to EN 50265-2-1, IEC 60332.1

Application Of 6242B 6243B LSZH Flat Cores +Earth Cable
6241 B LSZH cables are widely used in domestic and industrial power or lighting system. They normally installed in conduit and trunking or can be surface nounted if used as earth cable. They are good options for using in public buildings to reduce the threat to life and equipment cased by smoke and toxic fumes. They can't be installed incontrete without mechanic protection.
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