Distribution Blocks

The primary function of a distribution block is to supply power more efficiently to a series of devices. The secondary function is to isolate short circuit incidents to prevent complete shutdown from occurring. Distribution blocks can handle a range of frequencies and currents. Using distribution blocks requires only one large wire on the input side to link each connected device back to the power source. This eliminates the need for separate wiring of each device.

What are distribution blocks used for?
Distribution blocks are used in various industries:

  • Heating/cooling for operating heaters, cooling systems and ventilation equipment.
  • Power distribution control in the form of voltage transformers, uninterrupted power supply units and distribution cabinets
  • Solar, wind and turbine as the power supply to distribute energy.
  • Electrical vehicles for charging stations.
  • Electronic automation, including elevators, lifting equipment and conveyor systems.


Types of distribution blocks
The two main types of distribution block are:

  • Bussed (enclosed) blocks, which allow for a larger input cable to be split out into smaller cables for branch circuits.
  • Independent blocks, which enable multiple individual circuits to be routed to a single location as they are not connected to each other.

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Description Price Number of Ways Termination Method Wire Size Housing Material IP Rating Current Rating Voltage Rating Cable CSA Length Width Height Colour Maximum Operating Temperature Minimum Operating Temperature
RS Stock No. 383-1633
Mfr. Part No.1SNA115338R2500
BrandEntrelec
£36.85
Each
Units
2 Clamp 6 AWG - - 200A 800 V 10-70 inputmm² 114mm - 56.7mm Grey - -
RS Stock No. 277-9809
Mfr. Part No.0 048 30
BrandLegrand
£6.86
Each
Units
4 Screw Down - PC IP20 80A 400 V ac 1.5 → 16mm² 47mm - - Green +40°C -5°C
RS Stock No. 277-9764
Mfr. Part No.0 048 50
BrandLegrand
£6.80
Each
Units
4 Screw Down - PC IP20 80A 400 V ac 1.5 → 16mm² 47mm - - Black +40°C -5°C
RS Stock No. 100-3923
Mfr. Part No.1SNL325010R0000
BrandEntrelec
£55.23
Each
Units
12 Screw Down 14 → 2 (End 2) AWG, 14 → 6 (End 2) AWG, 14 → 8 (End 2) AWG, 2 → 250 (End 1) Kcmil Polyamide IP10 250A 1 kV ac, 1.5 kV dc 2.5 → 10 (End 2) mm², 2.5 → 16 (End 2) mm², 2.5 → 35 (End 2) mm², 35 → 120 (End 1) mm² 46mm 60mm 96mm Grey +110°C -55°C
RS Stock No. 383-1554
Mfr. Part No.1SNA115406R1300
BrandEntrelec
£2.42
Each
Units
2 Clamp 12 AWG - - 32A 800 V 4mm² 14.5mm - 53mm Grey - -
RS Stock No. 277-9837
Mfr. Part No.0 048 36
BrandLegrand
£23.87
Each
Units
22 Screw Down - PC IP20 100A 400 V ac 1.5 → 16 mm², 6 → 25 mm² 176mm - - Green +40°C -5°C
RS Stock No. 675-8929
Mfr. Part No.0 371 70
BrandLegrand
£2.964
Each (In a Pack of 5)
Units
1 Screw Down 12 AWG Metal - 18A 800 V 2.5mm² 52.2mm 5mm 46.4mm Green, Yellow +55°C -30°C
RS Stock No. 100-3921
Mfr. Part No.1SNL316010R0000
BrandEntrelec
£29.42
Each
Units
8 Screw Down 10 → 6 (End 1) AWG, 14 → 6 (End 2) AWG, 6 → 2/0 (End 1) AWG Polyamide IP10 160A 1 kV ac, 1.5 kV dc 10 → 70 (End 1) mm², 2.5 → 16 (End 2) mm², 6 → 16 (End 1) mm² 28.2mm 50.7mm 75mm Grey +110°C -55°C
RS Stock No. 100-3924
Mfr. Part No.1SNL340010R0000
BrandEntrelec
£58.28
Each
Units
12 Screw Down 14 → 2 (End 2) AWG, 14 → 6 (End 2) AWG, 14 → 8 (End 2) AWG, 3/0 AWG → 400 Kcmil (End 1) Polyamide IP10 400A 1 kV ac, 1.5 kV dc 2.5 → 10 (End 2) mm², 2.5 → 16 (End 2) mm², 2.5 → 35 (End 2) mm², 95 → 185 (End 1) mm² 46mm 60mm 96mm Grey +110°C -55°C
RS Stock No. 675-8922
Mfr. Part No.0 371 71
BrandLegrand
£18.49
1 Pack of 5
Pack(s)
1 Screw Down 10 AWG Metal - 23A 800 V 4mm² 52.2mm 6mm 46.4mm Green, Yellow +55°C -30°C
RS Stock No. 100-3922
Mfr. Part No.1SNL317510R0000
BrandEntrelec
£37.49
Each
Units
12 Screw Down 14 → 6 (End 2) AWG, 6 → 2/0 (End 1) AWG Polyamide IP10 175A 1 kV ac, 1.5 kV dc 10 → 70 (End 1) mm², 2.5 → 16 (End 2) mm² 46.2mm 52.3mm 72.5mm Grey +110°C -55°C
RS Stock No. 383-1611
Mfr. Part No.1SNA115336R1300
BrandEntrelec
£27.67
Each
Units
2 Clamp 6 AWG - - 200A 800 V 10-70 inputmm² 74mm - 56.7mm Grey - -
RS Stock No. 239-5120
Mfr. Part No.7601.1101.1
BrandKopp
£14.97
Each
Units
1 - - - - 16A - - - - - - - -
RS Stock No. 239-5164
Mfr. Part No.7602.2100.4
BrandKopp
£31.41
Each
Units
2 - - - - - 230 V ac - - - - - - -
RS Stock No. 239-5136
Mfr. Part No.7601.2101.8
BrandKopp
£15.14
Each
Units
2 - - - - 16A - - - - - - - -
RS Stock No. 138-3488
Mfr. Part No.1562190000
BrandWeidmuller
£49.94
1 Pack of 1
Pack(s)
15 (Output), 3 (Input) Screw - Wemid - 125A 1 kV ac/dc 16 mm², 25 mm², 35 mm² 108.3mm 53.7mm 70mm Grey +130°C -50°C
New
RS Stock No. 187-9909
Mfr. Part No.3273378
£60.35
1 Bag of 8
Bag(s)
19 Push In 26 → 12 (Solid) AWG, 26 → 14 (Flexible) AWG Polyamide - 57A 450 V 0.14 → 2.5 (Flexible) mm², 0.14 → 4 (Solid) mm² 28.6mm 56.45mm 21.7mm Red - -
RS Stock No. 180-6100
Mfr. Part No.0 048 32
BrandLegrand
£77.46
1 Box of 10
Box(es)
8 Screw 1.5 → 16 mm² PC IP20 80 A, 100 A 400 V - 75mm - - Green +40°C -5°C
RS Stock No. 138-3489
Mfr. Part No.1562220000
BrandWeidmuller
£26.00
1 Pack of 1
Pack(s)
3 (Input), 8 (Output) Screw 6 AWG Wemid - 192 A, 200 (UR) A 1 kV ac/dc, 600 V 25 mm², 35 mm², 95 mm² 52.5mm 54.5mm 73mm Grey +130°C -50°C
RS Stock No. 138-3498
Mfr. Part No.1561100000
BrandWeidmuller
£5.152
Each (In a Pack of 5)
Units
2 (Input), 2 (Output) Screw 14 → 4 AWG Wemid - 152 A, 90 (UR) A 1 kV ac/dc, 600 V 16 mm², 25 mm² 17.8mm 49.3mm 55.7mm Black +130°C -50°C
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