Cable Specification Sheet BS 7629-1 · Rev 01 · 2026-06

Fire resistant LSZH alarm cable · 4 core 2.5 mm²

Name: Fire resistant LSZH alarm cable · 4 core 2.5 mm²
Brand: UE Cable
SKU: fire-resistant-lszh-alarm-cable-300-500-v-fire-alarm-and-emergency-circuit-4-core-2-5-mm2

Ordering reference Fire resistant LSZH alarm cable · 4 core 2.5 mm²

BS 7629-1 Fire resistant LSZH alarm cable

Application

Fire alarms · Emergency lighting · Life safety circuits · Public building emergency systems

Indicative 4-core construction — copper conductor · screened, not to scale

Construction

1
Conductor (per core)Copper conductor · 7 × Ø0.67 mm · IEC 60228 cl.2
2
Core insulationMica fire barrier with LSZH insulation
3
FillerPP filler
4
ShieldBraid shield (C)
5
SheathLSZH outer sheath

Technical parameters

Voltage class300/500 V

Cable useFire alarm and emergency circuit

Core / pair design4 core

Conductor size2.5 mm²

Max DC resistance at 20 °C7.41 Ω/km

Fire behaviorFire resistant, low smoke and halogen-free emergency circuit construction

OD guide14 mm

Conductor materialCopper conductor

Operating temperature−15 °C to +90 °C (fire-rated)

Cable weight0.26 kg/m

Bend radius6 x OD during installation

Outer sheathLSZH outer sheath

Current rating (guide)≈ 30 A (Cu, multicore clipped, 30 °C — IEC 60364-5-52 guide)

Routine test voltage2.0 kV a.c. 5 min

Ratings & materials

StandardBS 7629-1

Voltage class300/500 V

UE Cable · China sales@uecable.com

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