LIYCY Shielded Signal Cables Selection Guide
When selecting LIYCY shielded signal cables, compare tinned copper braid screening, 0.14–1.5 mm² cross-section, DIN 47100 color code and twisted-pair (TP) options.
This guide explains what to look for when choosing products in the LIYCY Signal Cables category for analog transmitters (4–20 mA / 0–10 V), load cells, encoders, PT100 temperature sensors and industrial data buses.
Tinned copper braid shielding (C) and EMC noise immunity
LIYCY cables combine fine-stranded flexible copper conductors (LI), color-coded PVC core insulation (Y), a high-coverage tinned copper braided screen (C) and a flame-retardant PVC outer jacket (Y). The braided screen shields low-level analog and digital signals against capacitive and inductive interference from nearby power feeders and variable frequency drives.
Cross-section sizing (0.14 mm² – 1.5 mm²) and LIYCY vs LIYCY-TP (Twisted Pair)
Short electronic interfaces and encoders typically use 0.14 mm², 0.22 mm² or 0.34 mm²; industrial 4–20 mA loops, PT100 RTDs and proportional valves use 0.50 mm², 0.75 mm² or 1.0 mm²; and longer combined power/signal runs use 1.5 mm². For differential serial communication (RS485/RS422) and strain-gauge load cells, specify twisted-pair LIYCY-TP (e.g. 2×2×0.50 mm²) to cancel magnetic crosstalk between pairs.
LIYCY signal cable comparison table
| Selection Criterion | LIYCY (Standard Shielded Signal) | LIYCY-TP (Twisted-Pair Shielded) | LIYY (Unshielded Signal Cable) |
|---|---|---|---|
| Shielding Construction | Tinned copper braid screen (≥80% coverage) | Twisted pairs + overall tinned copper braid | Unshielded (PVC jacket only) |
| Typical Cross-Sections | 2×0.22 mm² – 25×1.5 mm² | 2×2×0.22 mm² – 8×2×0.75 mm² | 2×0.22 mm² – 12×0.75 mm² |
| Core Identification | DIN 47100 color code (or numbered JZ/OZ) | DIN 47100 paired color code | DIN 47100 color code |
| Primary Application | 4–20 mA / 0–10 V analog loops, PT100, PLC I/O | RS485, encoders, load cells & differential data | Short, noise-free discrete signal wiring |
Frequently asked questions
How should the braided shield on a LIYCY cable be grounded?
For low-frequency analog loops (4–20 mA), ground the shield at the control cabinet (PLC) end using a 360° EMC clamp or gland while insulating the field end to prevent ground-loop currents. For high-frequency digital buses, follow the equipment manufacturer's 360° bonding guidelines.
What is the difference between LIYCY and LIHCH cables?
LIYCY uses PVC insulation and a PVC jacket, whereas LIHCH is the halogen-free (LSZH / HFFR) equivalent specified for public buildings, tunnels and marine or rail applications.
How many cores are needed when wiring a PT100 temperature sensor with LIYCY cable?
Industrial PT100 RTD sensors use 3-wire or 4-wire compensation to eliminate lead-resistance error over long runs, so 3×0.50 mm², 3×0.75 mm² or 4×0.50 mm² LIYCY cable is standard.