Engineering specifications for the Kasa KS240 describe a specialized dual-load controller designed for AC ceiling fan and light integration. The unit utilizes a triac-based dimming circuit for lighting and a stepped capacitance circuit for 4-speed fan regulation. This stepped approach preserves a cleaner sine wave compared to pulse-width modulation (PWM) controllers, which mitigates audible motor hum and bearing wear in analog AC motors.
Physical analysis reveals an ESP32-based chipset that supports the Matter protocol, facilitating local control and reduced latency. The hardware is designed to fit within a single-gang electrical box but features a deep chassis to accommodate the dual-relay thickness. Material analysis confirms the use of high-tolerance relays with mechanical dampening to minimize operational noise during switching events.
Technical constraints and capabilities include:
- Stepped capacitor regulation for silent fan operation.
- Matter protocol support for local network execution.
- Dual-load control within a single-gang vertical form factor.
- Mandatory neutral wire requirement for power sensing.
The KS240 is incompatible with DC motor fans or those with integrated proprietary remote receivers. In such cases, the BroadLink RM4 Pro is recommended as an alternative to bridge the fan's original RF remote into the smart home ecosystem without bypassing the motor's internal controller.
This unit is a highly specialized device within the smart wall switches architecture for integrated climate and lighting control.
