Instrumentation cables carry low-level analogue or digital signals (4–20mA, 0–10V, RTD, thermocouple) and must have twisted pairs/triads with EMI shielding (Al-Mylar screen + drain wire) to prevent signal distortion from electrical interference.

Control cables carry switching signals at higher voltages (110V, 230V, 415V) and do not require shielding. Using a control cable in a DCS instrumentation loop causes signal noise, measurement errors, and loop calibration failures.

Individual Screened (IS): Each pair has its own Al-Mylar screen and drain wire. Eliminates cross-talk between signal loops in a multi-pair cable. Essential for DCS multi-loop systems.

Overall Screened (OS): One screen covers all pairs. More economical. Adequate for single-loop or where all pairs carry signals from the same instrument.

IS + OS: double-layer protection — required in high-EMI environments like refineries and near HV transformers.

0.5 sq mm — Short-distance wiring inside panels and marshalling cabinets (under 50m)
0.75 sq mm — Standard field runs up to 200–250m for 4–20mA loops
1.0 sq mm — General purpose field runs, medium distance
1.5 sq mm — Long-distance field wiring (300m+), intrinsically safe circuits
2.5 sq mm — Solenoid valve power, high-current field devices, very long runs.

We can calculate the exact conductor size based on your loop resistance requirement. Contact us with your transmitter model and cable run length.

Yes. Every batch from our Bhiwadi factory comes with a Mill Test Certificate (MTC) covering conductor resistance, insulation resistance, spark test, and dimensional data as per the applicable IS/IEC standard.

For EPC and government project orders, we support third-party inspection by agencies such as RITES, Bureau Veritas, TUV, Intertek or any client – nominated agency. Pre-dispatch inspection can be arranged at our factory with advance notice.

• Non-standard core counts (e.g. 7-pair, 15-triad, mixed pair + triad)
• Special insulation colour codes per customer BOM or IEC standard
• Custom reel lengths (100 m, 250 m, 500 m, 1000 m drums)
• Private labelling with your brand/project name printed on the sheath.
• Special sheath colours (grey, blue, black, red, orange).
• Combined pair + triad cables in a single design.

Standard PVC: Most economical. Adequate for general industrial use. Releases halogen gases when burned — not suitable for enclosed spaces.

FRLS-H: (Flame Retardant Low Smoke) — self-extinguishing, low smoke density. Required for buildings, metros, hospitals. Still contains halogens.

LSZH / ZHFR: Zero halogen gas emission. Mandatory in tunnels, ships, offshore platforms, pharma cleanrooms, nuclear facilities. Higher cost but critical for personnel safety in enclosed spaces.

EMI screening is standard on our instrumentation cables — specify overall screened (OS), individually screened (IS), or IS+OS double-screened construction depending on your interference environment. For low-noise indoor applications we also manufacture plain unscreened twisted pair constructions on request. Either way, we build to your exact datasheet — Al-Mylar tape, copper braid, or both, with tinned copper drain wire.