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PLC Racks & Enclosures

PLC racks are the simple components that hold everything together within a programmable logic controller. They're available in different sizes to suit the specific needs of a controller, and to hold more modules if needed.

How do PLC racks work?

PLC racks have a backplane at the rear that let the cards communicate with the CPU (central processing unit). A PLC rack can take many different types of I/O modules that just slide into the rack and plug in. A power supply is connected into the rack, feeding power to the modules that are plugged into the rack. Once you remove all modules you're left only with the power supply and the PLC rack.

Types of PLC racks

PLCs feature in devices that can be small enough to fit in your pocket, or industrially sized. Therefore some PLCs will need larger PLC racks with greater capacity. Variations between PLC racks include different backplane currents, widths, lengths and number of module slots.

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Part Details Brand Manufacturer Series For Use With Module Slots Maximum Backplane Current Mounting Type Weight Unloaded Length Width Depth Minimum Operating Temperature Maximum Operating Temperature Dimensions
Schneider Electric TSX 37 PLCs 3 Slots, Panel Mount Mount 151 x 341.4 x 152 mm Schneider Electric TSX 37 TSX Series 3 60A Panel Mount 1.75kg 151mm 341.4mm 152mm 0°C +60°C 151 x 341.4 x 152 mm
Schneider Electric BMX Serial Modbus 2 Slots, DIN Rail Mount Schneider Electric BMX M340 Series 2 - DIN Rail 0.2kg 100mm - 93mm 0°C +60°C -
Pepperl + Fuchs UG Mounting Base 80 x 45 x 20 mm Pepperl + Fuchs UG AS-I - - - - 80mm 45mm 20mm -25°C +60°C 80 x 45 x 20 mm
Schneider Electric Modicon M340 Backplane 4 Slots, DIN Rail Mount 242.4 x 103.7 x 19 mm Schneider Electric Modicon M340 Modicon M340 4 - DIN Rail 0.630kg 242.4mm 103.7mm 19mm 0°C +60°C 242.4 x 103.7 x 19 mm
Schneider Electric Modicon M340 Backplane 8 Slots, DIN Rail Mount 372.8 x 103.7 x 19 mm Schneider Electric Modicon M340 Modicon M340 8 - DIN Rail 0.950kg 372.8mm 103.7mm 19mm 0°C +60°C 372.8 x 103.7 x 19 mm
Pepperl + Fuchs UG Mounting Base 80 x 45 x 34 mm Pepperl + Fuchs UG AS-I - - - - 80mm 45mm 34mm -25°C +60°C 80 x 45 x 34 mm
Schneider Electric Modicon M340 Backplane 6 Slots, DIN Rail Mount 307.6 x 103.7 x 19 mm Schneider Electric Modicon M340 Modicon M340 6 - DIN Rail 0.790kg 307.6mm 103.7mm 19mm 0°C +60°C 307.6 x 103.7 x 19 mm
Mitsubishi Q Controller Base Unit 8 Slots, DIN Rail Mount Mitsubishi Q Controller MELSEC Q Series 8 - DIN Rail - - - - 0°C +55°C -
Schneider Electric Modicon M340 Backplane 12 Slots, DIN Rail Mount 503.2 x 103.7 x 19 mm Schneider Electric Modicon M340 Modicon M340 12 - DIN Rail 1.270kg 503.2mm 103.7mm 19mm 0°C +60°C 503.2 x 103.7 x 19 mm
Mitsubishi Q Controller Base Unit 12 Slots, DIN Rail Mount Mitsubishi Q Controller MELSEC Q Series 12 - DIN Rail - - - - 0°C +55°C -
Phoenix Contact FL CAT5 TERMINAL BOX Terminal Box, DIN Rail Mount 90 x 25 x 52 mm Phoenix Contact FL CAT5 TERMINAL BOX - - - DIN Rail 39g 90mm 25mm 52mm 0°C +70°C 90 x 25 x 52 mm
Schneider Electric TSX 37 PLCs 3 Slots, Panel Mount Mount 151 x 341.4 x 152 mm Schneider Electric TSX 37 TSX Series 3 60A Panel Mount 1.72kg 151mm 341.4mm 152mm 0°C +60°C 151 x 341.4 x 152 mm
Mitsubishi Q Controller Base Unit 5 Slots, DIN Rail Mount Mitsubishi Q Controller MELSEC Q Series 5 - DIN Rail - - - - 0°C +55°C -
Pepperl + Fuchs UG Mounting Base 119 x 60 x 10 mm Pepperl + Fuchs UG AS-I - - - - 119mm 60mm 10mm -25°C +60°C 119 x 60 x 10 mm
Schneider Electric BMEXBP Backplane 12 Slots, DIN Rail Mount 503.2 x 105.11 x 19 mm Schneider Electric BMEXBP BMEP58 Processor, BMXCPS Power Supply, I/O Module, Specific Application Module 12 164mA DIN Rail 1.377kg 503.2mm 105.11mm 19mm 0°C +60°C 503.2 x 105.11 x 19 mm
Schneider Electric TSX Micro Rack 250 Slots, Plate Mount Schneider Electric TSX Micro TSX Series 250 - Plate 0.63kg 151mm 282.7mm - 0°C +60°C -
Backplane 16 Slot CC Schneider Electric - Expansion I/O Unit - - - - - - - - - -
Mitsubishi MELSEC Q Extension Base 12 Slots, DIN Rail Mount Mitsubishi MELSEC Q MELSEC Q Series 12 - DIN Rail - - - - 0°C +55°C -
Mitsubishi MELSEC Q Extension Base 8 Slots, DIN Rail Mount Mitsubishi MELSEC Q MELSEC Q Series 8 - DIN Rail - - - - 0°C +55°C -
Omron CS1 Series Backplane 5 Slots 130 x 330 x 132 mm Omron CS1 Series C200H Series, CS Series 5 0.11A - - 130mm 330mm 132mm - - 130 x 330 x 132 mm
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