Alpha BS II Type B TP&N Metering Options

125A TP&N Distribution Boards

No of  Dimensions (mm)
TP ways   H    W    D          List No.
4 way     490 430 155  8GP1 204-2DA54
6 way     570 430 155  8GP1 206-2DA54
8 way     650 430 155  8GP1 208-2DA54
12 way   815 430 155  8GP1 212-2DA54
16 way   895 430 155  8GP1 216-2DA54
20 way   1000 430 155  8GP1 220-2DA54
24 way   1140 430 155  8GP1 224-2DA54

125A rated Distribution Boards with Integral DIN Rail           
4 way    650   430 155  8GP1 104-2DA50
8 way    815   430 155  8GP1 108-2DA50
12 way  975   430 155  8GP1 112-2DA50
16 way  1140  430 155  8GP1 116-2DA50
20 way  1140  430 155  8GP1 120-2DA50

  • Switch disconnector, rccb or direct connected incomer options

  • Integral meter facility available as standard

  • 80A 10kA rated mcb’s available

  • Designed to terminate 4 core 600/1000V cable up to 50mm2

  • (stranded copper conductors) to BS 5372:1997


Integral Meter Pack*

                                                                                            List No.
125A ct op. 3ph 4w Energy Meter Pack - Std             8GP1 921-2DA80
125A ct op. 3ph 4w Energy Meter Pack - MID             8GP1 991-2DA80
Contains: Digital meter offering Amps, Volts, kWh readout plus pulsed output. 3x125A ct's, fuses & cable loom (the latter supplied loose for connection by others)
* Not recommended for use with incomers mtd in the lower incomer position i.e. rccb incomer, 4P Sw Disconnect or 5TT8 814 TP Switch Disconnector.

Add-On Meter Pack in Enclosure

125A ct op. 3ph 4w Energy Meter Pack - Std             8GP1 990-2DA10
125A ct op. 3ph 4w Energy Meter Pack - MID             8GP1 991-2DA10
Dims:   245 430 155
Contains: Digital meter offering Amps, Volts, kWh readout plus pulsed output. 3x125A ct's, fuses & associated cable loom

125A TP&N Distribution Board with Add-on meter pack fitted
An example of a 125A TP&N Distribution Board with Add-on meter pack fitted (Standard or MID options available).

Horizontal Lighting & Power Board Metering

125A TP&N Horizontal Lighting and Power Board
An example of a 125A TP&N Horizontal Lighting and Power Board (Standard or MID options available).

125A ct op. Twin 3ph 4w Energy Meter Pack -Std      8GP1 992-2DA10
125A ct op. Twin 3ph 4w Energy Meter Pack -MID  

250A rated Distribution Boards

No of  Dimensions (mm)
TP ways  H     W    D             List No.
4 way     650 430 155   8GP1 204-4DA54
6 way     815 430 155   8GP1 206-4DA54
8 way     815 430 155   8GP1 208-4DA54
12 way  895 430 155    8GP1 212-4DA54
16 way  975 430 155    8GP1 216-4DA54
20 way  1085 430 155  8GP1 220-4DA54
24 way  1190 430 155  8GP1 224-4DA54

  • Switch Disconnector, mccb or direct connected incomer options

  • Integral meter facility as standard

  • 25kA conditional fault rated board to EN61439-2 as standard

  • 10kA, 15kA or 25kA rated mcb’s available


250A TP&N Distribution Boards

Add-on Meter Pack in Enclosure
250A ct op. 3ph 4w Energy Meter Pack - Std                          8GP1 990-4DA10
250A ct op. 3ph 4w Energy Meter Pack - MID                          8GP1 991-4DA10
Dims:   245 430 155
Contains: Digital meter offering Amps, Volts, kWh readout plus pulsed output. 3x250A ct's, fuses & associated wiring.

SP&N Distribution Board with socket outlet
SP&N Distribution Board fitted with socket outlet

TP&N Distribution Board fitted with socket outlet and integral meter
TP&N Distribution Board fitted with socket outlet and integral meter