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Fire Rated Instrumentation Cable

Fire Rated Instrumentation Cable
Product Introduction:
Instrument signals are extremely weak. A few milliamps of change can represent a critical process parameter. When a fire occurs, you may not only lose the signal, but the fire may also propagate along the cable into the control room.
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Description
Technical Parameters
Protects weak signals and prevents fire spread
 

Instrument signals are extremely weak. A few milliamps of change can represent a critical process parameter. When a fire occurs, you may not only lose the signal, but the fire may also propagate along the cable into the control room.

Our Fire rated instrumentation cable is designed to protect signal integrity while prioritizing fire safety. The insulation and jacket are made of flame-retardant materials. They are self-extinguishing when exposed to fire and do not support flame propagation. This helps slow down fire spread and provides valuable time for firefighting and evacuation.

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Signal accuracy is preserved

 

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We also focus on transmission performance. The conductor is high-purity oxygen-free copper, ensuring low resistance and stable conductivity for accurate transmission of weak instrument signals.

The insulation is HDPE or flame-retardant PVC with stable dielectric properties. Crosstalk between pairs is effectively controlled.

A dual shielding structure is applied: aluminum foil for each pair and a high-density tinned copper braid overall. This provides strong protection against EMI from VFDs and motors, ensuring accurate transmission of 4–20mA, thermocouple, and RTD signals without distortion.

Strict quality control for fire safety
 

We follow strict quality control procedures for flame-retardant and fire safety cables. The product is tested in accordance with IEC 60332 and certified to CE and RoHS standards.

Common flame-retardant instrumentation cable models such as ZR-DJYPV, ZR-DJYPVP, and ZR-DJYPVR are available in stock. We support Class A, B, and C flame-retardant grades.

For export projects, we provide full test reports and customs documentation. Moisture-proof and impact-resistant packaging is used for transportation.

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Key Specifications

 

Parameter

Specification

Common Models

ZR-DJYPV, ZR-DJYPVP, ZR-DJYPVR, ZR-DJYPVPR

Conductor

High-purity OFC / tinned copper

Shielding Structure

Foil (pair) + tinned copper braid (overall)

Working Capacitance

≤ 60 nF/km

Flame Retardant Standard

IEC 60332 compliant

 

Frequently Asked Questions

 

Q: What is the performance difference between flame-retardant and standard instrument cable?

A: Electrically, the performance is almost identical. Both comply with IEC 61156 standards, including capacitance and insulation resistance.
The key difference is fire behavior. Flame-retardant cables contain additives in the insulation and jacket that allow them to self-extinguish when exposed to flame. This prevents fire propagation along the cable route.
Properly formulated flame-retardant cables do not negatively affect electrical performance or signal accuracy.

Q: What does your warranty service cover?

A: We provide a 12-month warranty from the date of delivery. During this period, we cover issues caused by manufacturing defects such as insulation breakdown, jacket cracking, or failure of flame-retardant performance.
Our after-sales team responds within 24 hours. Standard issues are handled within 24 hours, and urgent cases can be escalated with on-site support within 3 days if required.

 

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