RZ1-K (AS+) FR2 LSZH Fire-Resistant Power Cable (0.6/1kV) for Emergency Circuits
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Product Overview
RZ1-K (AS+) FR2 is a low voltage (0.6/1kV) LSZH (Low Smoke Zero Halogen) fire-resistant power cable specifically engineered to maintain circuit integrity during fire conditions. It is designed to ensure continuous power supply to critical emergency systems, making it an essential solution for safety-critical installations in public and industrial environments.
This cable complies with IEC 60502-1 and UNE 211025 standards, ensuring reliable electrical performance and adherence to international fire safety requirements.
Key Applications
RZ1-K (AS+) FR2 is widely used in installations where operational continuity during fire is mandatory, including:
Emergency lighting systems
Fire alarm and detection circuits
Smoke extraction and ventilation systems
Water pumps and evacuation systems
Tunnels, hospitals, airports, offices, hotels, and industrial plants
Its ability to maintain power supply under fire conditions ensures safe evacuation, early warning, and system reliability.
Cable Construction
Conductor
Flexible copper conductor (Class 5)
Designed for ease of installation and improved conductivity
Insulation
Mica tape (fire barrier) + XLPE insulation
Provides enhanced fire resistance and thermal stability
Outer Sheath
LSZH polyolefin sheath (halogen-free, low smoke)
Fire-resistant, low toxicity, and reduced corrosive gas emission
Standard color: orange
Electrical & Thermal Performance
Rated voltage: 0.6/1kV
Maximum conductor temperature: 90°C
Short-circuit temperature: 250°C (max. 5 seconds)
Minimum service temperature: -40°C (fixed installation)
Minimum installation temperature: 0°C
Fire Performance & Safety Features
This cable is engineered for high fire survival performance, including:
Flame non-propagation: EN 60332-1 / IEC 60332-1
Fire non-propagation: EN 60332-3 / EN 50399
Circuit integrity:
PH120 (≥120 min at 840°C)
Category C (180 min at 950°C) according to BS 6387
CPR classification:
B2ca-s1a, d1, a1 or Cca-s1b, d1, a1
Halogen-free: EN 60754-1
Low smoke emission: EN 61034 (light transmittance > 60%)
These characteristics make it ideal for life safety systems where visibility, toxicity, and circuit continuity are critical.
Mechanical & Environmental Performance
Minimum bending radius: 5 × cable diameter
Impact resistance: Medium severity (AG2)
UV resistant (EN 50618)
Water resistance: AD5 (water jets)
Chemical and oil resistance: acceptable
Installation Conditions
Suitable for various installation environments:
Open air
Buried installations
Installed in ducts or conduits
Available Sizes & Electrical Capacity
The cable is available in a wide range of conductor sizes, including:
Single-core: 1.5 mm² up to 630 mm²
Multi-core configurations (2-core, 3-core, 4-core, etc.)
Current capacity example:
1 × 2.5 mm²: up to 39A (air)
1 × 240 mm²: up to 679A (air)
This wide range allows flexibility for different load requirements and installation conditions.
Compliance & Certifications
CE marking
AENOR certification
RoHS compliant
CPR classification (EN 50575)
Why Choose RZ1-K (AS+) FR2 Cable?
Ensures continuous power supply during fire emergencies
LSZH design improves human safety (low smoke, no toxic halogens)
High fire resistance ratings (PH120 / BS 6387)
Suitable for public infrastructure and critical installations
Reliable performance under extreme thermal and environmental conditions
