Mitsubishi HN331C is an operation panel I/O PCB offered by REACO CNC for replacement and repair enquiries. The photographed board carries BN638A663G52B identification and is shown with an additional HN371A PCB in a stacked assembly.

The pictured assembly includes grey multipin connectors with retaining latches, metal-shell signal connectors, brown multipin connectors and an installed R-TM terminator. Confirm whether the quotation covers the HN331C board alone or the complete photographed assembly.

HN331C Product Information

HN331C and HN371A Identification

Match HN331C / BN638A663G52B against the original board. Record the separate HN371A / BN638A514G52 identification when replacing the paired assembly. These are distinct PCB references; labels or markings on the additional board should be recorded separately.

Source-Checked Details

Mitsubishi's E70 Series Connection Manual, section 4.3.4.3 lists HN331 and HN371 among operation panel I/O card names. This provides family-level context; it does not confirm every revision, board combination or host-unit application shown here.

Connector Layout and Assembly Matching

The photographs show MPG, RIO3, CG71, NCKB and ADDON labels around the signal connectors, together with an R-TM terminator. Compare connector keying, contacts, retaining latches, mounting supports and board spacing with the original assembly. Follow the exact host-unit documentation for wiring and signal assignments.

Product Scope and Testing

Confirm the included PCBs, terminator and mounting hardware with the quotation. Send photographs of both sides, the complete host-unit nameplate, fault details and required quantity. REACO CNC provides a testing video before shipment; confirm actual-unit condition, availability and test scope before purchase.

Browse Related Components

Explore Mitsubishi PCB boards and Mitsubishi CNC parts for related replacement enquiries.