BCHF-208 / БЧФ-208 Phase-Sequence Unit

BCHF-208 / БЧФ-208 Phase-Sequence Unit

BCHF-208 (БЧФ-208) is a phase-sequence unit used in the electrical system of Mi-8, Mi-17 and Mi-171 helicopters to monitor and verify the correct phase sequence of AC power. It ensures proper phase order and protects connected equipment from incorrect phase rotation or loss. Offered as a standalone certified aviation electrical unit for sale with traceability and documentation available subject to contract.