Atlantic Boilers RELAX DIGITAL 9 Panduan Pengoperasian & Pemeliharaan - Halaman 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

240 Volts single

phase