WaterMaster FET100
Electromagnetic floweter | Transmitter 3 Electrical Installation
16 OI/FET100–EN Rev. A
3.6 Power Supply Connections
3.6.1 AC Power Supply
Warning.
Electrical installation and earthing (grounding) must be in accordance with relevant national and
local standards.
Power must be connected via a suitable isolator and fused in accordance with relevant standards.
When changing fuses F1 or F2, isolate the power supply and wait 20 seconds before opening the
enclosure.
Replace fuses with the correct part – see Fig 3.11 (AC power) and 3.12, page 17 (DC power).
Fig. 3.11 AC Power Supply Connections
Transmi tter Lab el
External Earth Screw
AC power via a
suitable isolator
and fuse
*AC Fuse F1 250 mA Type T
(see table below for suppliers)
>4 mm
2
(<10 AWG) Copper Wire
Power Supply Indicator LED
**Can be used as a
Protective Earth (PE)
if required by
national standards
Brown
Blue
Green / Yellow
Internal Earth
Screws**
*Fuse Supplier Fuse Part Number
ABB B20411
Bussmann BK/ETF 250 mA
Wickmann 19372 K250mA