Mitsubishi RM492 is an electrolytic capacitor bank circuit board assembly offered for replacement and maintenance enquiries. The photographed PCB carries RM492 beside the Mitsubishi logo, with additional RM492B and BN638A501G51 markings near the board edge.

Visible capacitor sleeves are marked 470 µF, 400 V. These values identify individual components and must not be used as the complete board's input-voltage rating or total capacitance. Match the full PCB identification, terminal arrangement and original equipment model before ordering.

RM492 Product Information

Capacitor Bank and Terminal Layout

The assembly contains upright electrolytic capacitors mounted on a shaped PCB. Visible labels include P, N and CON1, with an LED1 marking beside the red LED. Compare the terminal positions, mounting holes, connector and capacitor clearance with the original assembly. The labels alone do not establish operating limits or the indicator's function.

RM492, RM492B and BN638A501G51 Identification

Use RM492 as the primary enquiry reference and include photographs of the RM492B and BN638A501G51 markings. These identifiers are visible on the supplied assembly; they should be checked together rather than treated as proof that all similarly named boards are interchangeable. Provide the original equipment nameplate for matching.

Condition and Installation Checks

Confirm that the quotation covers the populated capacitor board shown. A qualified technician should check capacitor condition, solder joints, terminals and the original fault before replacement. Capacitors can retain charge after power is removed: isolate the equipment, follow the specified discharge procedure and verify absence of voltage before handling the assembly. Do not rely on an unlit LED as proof of discharge.

Testing, Warranty and Dispatch

REACO CNC provides actual product photographs and a testing video before shipment. The supplied condition and applicable test scope are confirmed for the quoted board. Confirmed stock normally ships within 1–2 business days after payment. Warranty is 1 year for new/refurbished items and 3 months for used items.

Related resources: Mitsubishi PCB boards and Mitsubishi drive units.