The YCS6-D 3P is a robust surge protection device (SPD) designed to protect three-phase electrical systems from transient overvoltages caused by lightning strikes or switching operations. Operating at AC 385V, it features a 3-pole configuration and can discharge surge currents up to 20kA, making it suitable for TT, TN, and IT systems.
Its 36mm width allows for compact installation in distribution boards, and the yellow indicator provides clear visual feedback on protection status. Built to comply with IEC 61643-1, the device is typically installed at the incoming line of low-voltage distribution boxes.
The SPD supports DIN rail mounting (35mm) and operates reliably across a wide temperature range (–40°C to +85°C). It is recommended to pair with 16A–25A fuses or circuit breakers for optimal performance.
TECHNICAL DETAILS:
| Specification | Value |
| Model | YCS6-D 3P |
| Poles | 3P |
| Rated Voltage | AC 385V |
| Discharge Current Range (Imax) | 10–20kA |
| Voltage Protection Level (Up) | ≤1.5kV |
| Response Time | <25ns |
| Indicator Color | Yellow |
| Width | 36mm |
| Mounting Type | 35mm DIN rail |
| Test Standard | IEC 61643-1 |
| Recommended Fuse/Breaker | 16A–25A |
| Operating Temperature | –40°C to +85°C |
| Relative Humidity (at 25°C) | ≤95% |
| Application | Incoming line of LV distribution box |
EN 
FR 
