The QS034B is a safety base unit for the Mitsubishi MELSEC-QS series, providing the backplane for a CPU, power supply, and up to four I/O modules in a safety-rated PLC system.
Mounting and integration
Mounting options include DIN rail using the separately sold Q6 DIN 2 adapter, or direct panel mounting via M4 screw holes (or φ4.5 mm clearance holes for M4 screws). The base unit accepts a MELSEC-QS series power supply unit and supports up to four input or output modules, creating a compact safety PLC backplane.
Lifecycle and sourcing
Lead times typically run 1–10 working days when quoted to order; we source and supply against an RFQ, confirming fit for your BOM line.