Westhomes WSB9L DIN‑Rail Earth Leakage MCB

The WSB9L series provides combined overcurrent (MCB) and residual current (ELCB) protection for AC 50/60 Hz circuits with rated voltages of 230 V (single phase) and up to 400 V (multiple poles). Available in configurations up to 100 A, it is designed to prevent electric shock, overload, and short circuit, while also supporting infrequent manual line switching—ideal for residential, hotel, commercial, and industrial settings.

Key Features:

Rated Current (In): 6, 10, 16, 20, 25, 32, 40, 50, 63, 80, up to 100 A
Residual Operative Current (IΔn): 30 mA, 50 mA, or 100 mA
Poles & Width: 1P+N or 3P+N; available widths: 36 mm or 72 mm
Breaking Capacity: Standard 6 kA (N); High („H“) version up to 10 kA
Standards Compliance: IEC 61009, GB 16917.1 & GB 16917.22

Advantages

Precision earth leakage detection to reduce shock risks
Integrated overcurrent and short-circuit protection
Compact DIN‑rail design ensures easy panel integration
Customizable current and residual current ratings to fit diverse needs
Fully certified for international and Chinese safety standards

Applications

Suitable for installation on standard 35 mm DIN rails, the WSB9L series offers a modular, compact design with fast installation. Ideal for protecting circuits in homes, commercial buildings, hotels, light industry, and mining facilities.