The Micro Switch for EBK340 Powerhead (Part #10.4 015‑300 / WW‑6601) is a precision electrical switch component designed specifically for the Wessel Werk EBK340 vacuum powerhead. This micro switch is integral to the internal control system, enabling the powerhead’s activation mechanism, safety cutoff, or pedal/trigger functionality. As the EBK340’s original micro switch can wear out or fail over time, replacing it with this quality OEM‑spec part restores reliable on/off control and safety responsiveness.