

Dewalt N559228 Motor & Switch SA for DCD792 18V Cordless Drill
The N559228 assembly integrates two of the most critical components of a power tool: the motor and the electronic switch mechanism.
Integrated Design: DeWalt often designs its advanced, brushless motors to be synchronized with their specific electronic switches and control modules, requiring them to be sold as one complete, inseparable unit. This ensures optimal performance, efficiency, and safety. The entire assembly comes pre-wired, ready for installation into the drill's clamshell housing.
Core Function: The motor provides the driving force, converting the 18V battery's electrical energy into the rotational power needed for drilling and screwdriving applications. The switch assembly regulates this power, allowing the user to control the speed and direction (forward/reverse actuator) of the motor, a fundamental requirement for the drill's variable speed function and precise application of torque.
Brushless Technology: As part of the DCD792, this assembly is likely a brushless motor system, a key feature in DeWalt's XR range known for delivering increased runtime, efficiency, and durability compared to older brushed motor designs. Brushless motors have fewer wearing parts (no brushes to replace), contributing to a longer tool lifespan.
Components: The assembly includes the motor itself, the variable speed trigger switch, and likely the internal wiring/battery terminals that connect directly to the 18V Li-ion power source. Other related parts like the transmission assembly, chuck, and various screws are separate items in the overall parts diagram.
Products that use this part
DEWALT DCD792 CORDLESS DRILL 18V LI-ION (TYPE 1)