The Federal Pioneer DOC MK.II Instantaneous Overcurrent Relay is a DC-rated protection device that trips immediately when current exceeds its preset level, providing rapid fault isolation. This DOC MK.II model operates at 250 VDC, designed for protection schemes in DC power circuits that demand swift, no-delay overcurrent response. As a Federal Pioneer (FPE) relay, it helps safeguard electrical equipment by interrupting fault current promptly to minimize damage. In short, the DOC MK.II is an instantaneous tripping overcurrent relay whose primary function is to detect overcurrent conditions and trigger fast protection in DC electrical systems.
