Atlantic Boilers RELAX DIGITAL 12 Bedienings- en onderhoudshandleiding - Pagina 4

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2). ELECTRICAL ARRANGEMENTS

2.1) Electrical power circuitry

The Relax Digital can accept up to 415volts 3phase and neutral, on 50Hz & 60Hz
The Relax Digital must have an automatic cut-out against failure of the neutral isolation
The automatic cut-out must conform to BS C 15100 – protection are indicated below
Power
output
6 kW
9 kW
12 kW
18 kW
24 kW
Correct connection of the earth terminal is absolutely essential

2.2) Voltage couplings

Coupling of the plate arrangement, for the single & 3phase supplies, are shown below
The horizontal view of the boiler shows the immersion heater positions and the plate
Arrangement alongside, where the different couplings are made.
415 Volts 3 phase &
Amperes protection per phase
415V
240V
3PH
1PH
10 A
30 A
16 A
50 A
20 A
63 A
32 A
-
40 A
-
neutral
Cable size in mm2
415V 3PH
240V 1PH
2.5
4
4
6
10
240 Volts single
phase
6
10
16
-
-
4