KEMO M103N Master/Slave 230VAC Auto Switch 15A Load Control Relay Module

The KEMO M103N Master/Slave Switch is a smart automatic load control module designed to switch auxiliary electrical devices on or off in response to a primary (master) device. When the master load is powered, the module detects the current draw and automatically activates a connected slave load, making it ideal for energy-efficient automation in workshops, offices, and home installations.

This unit is suitable for both 1-phase systems and monitored 3-phase applications (via single-phase sensing). It provides reliable switching for equipment such as vacuum cleaners, power tools, lighting systems, or auxiliary machinery that should operate only when a primary device is running.

Engineered for robust performance, the M103N supports up to 15 A per channel, with a total combined load limit of 16 A (max 3600 W at 230 VAC). It features a highly sensitive trigger threshold of approximately 40 mA, allowing it to detect even low-power devices accurately. This ensures seamless operation without manual intervention.

The internal relay supports a switching capacity of 1 x ON up to 16 A, ensuring durability under frequent switching cycles. With an ultra-low standby consumption of less than 0.5 W, the module is energy efficient and suitable for continuous operation.

Built for reliability in demanding environments, it operates across a wide temperature range from -15 C to +70 C. Compact in design (67 x 65 x 37 mm excluding mounting brackets), it can be easily installed in control panels or distribution enclosures. Connection is made via a simple single-core cable system for straightforward integration.

Overall, the KEMO M103N provides a practical and efficient solution for automated power management, reducing unnecessary energy usage while improving convenience and system control in electrical installations.

What's in the box
1 x KEMO M103N Master/Slave 230VAC Auto Switch 15A Load Control Relay Module