Skip to main content
Log in
Mitsubishi Electric Q312B — PLCs (Programmable Logic Controllers)

Mitsubishi Q312B Base Unit, 12 Module Slots

MPNQ312B

Mitsubishi MELSEC Q Series Q312B Controller Base Unit, 12 Module Slots, 1 Power Supply Slot, 0.45 Kg, DIN Rail Mount.

$24.00Ref. price · indicative, final on quote
Mitsubishi Electric Q312B datasheet (PDF)
Sourced new & surplus through independent channelsAuthenticity-screened · ESD-safe packingListing updated Aug 2026

Specifications

Q312B — Mechanical
ParameterValue
Mounting typeDIN Rail
Weight0.45 Kg
Q312B — Other specifications
ParameterValue
Module slots12
Product typeQ Controller Base Unit
Dimensions (L x w x h)4.4cm x 43.9cm x 9.8cm
Power supply module required1
Maximum operating temperature+55°C
Minimum operating temperature0°C

Product details

What the Q312B Covers in a MELSEC Q Rack

The Mitsubishi Q312B is a Q Controller Base Unit for the MELSEC Q Series, providing 12 module slots for I/O, special function, and communication modules. It mounts on DIN rail and requires one power supply module in the dedicated leftmost slot.

Backplane Power and Slot Budget

The backplane supplies 5 VDC power to the rack modules. Dimensions are 4.4 cm deep, 43.9 cm wide, and 9.8 cm tall. Operating range is 0°C to +55°C.

MPN
Q312B