2 - 6 Installation
K0260 Issue No. 8
2.4 Electrical Connection
WARNING: VOLTAGES IN EXCESS OF 30 VOLTS (RMS) AC OR 50 VOLTS DC, IN CERTAIN
CIRCUMSTANCES, CAN BE LETHAL. CARE MUST BE TAKEN WHEN WORKING ON LIVE,
EXPOSED CONDUCTORS.
Power Supply Connection
The unit must be connected to the correct electrical power supply as stated, adjacent to the
power connector.
Open end cables
Only a qualified technician (see page i) must fit a connector to a cable supplied by GE (see Table 2-1,
item 3).
CAUTIONS:
1T
HE SUPPLY MUST PROVIDE CONNECTION TO A PROTECTIVE GROUND TERMINAL. THE UNIT MUST, AT
ALL TIMES, BE CONNECTED TO THE SUPPLY EARTH (GROUND).
2T
HE POWER SUPPLY CABLE AND CONNECTOR MUST BE CORRECTLY RATED FOR THE POWER SUPPLY.
Note: The ADTS 505 is normally supplied with an approved power supply cable for use in the country
of delivery. This can limit the maximum supply voltage that can be safely used.
e.g. a NEMA 5-15P terminated cable, for use in the U.S.A., is approved for a maximum of 125 V
ac; it must be replaced for a higher supply voltage.
Make sure that the power supply is off before connecting the power cable.
If required, connect the hand terminal to the connector on the front panel.
Note: Connecting the hand terminal to the unit disables the front panel key-pad.
Fuses
The two fuses, located in the holders and mounted on the front panel, protect the unit. The
fuses are connected in the live and neutral supply circuit and are T5.0A/250V HBC type.
Note: Only replace the fuses with the correct type, see Figure 2-1 item1, to replace see section 4-5.
External earth/ground connection
An external earth (ground) cable may be connected to the stud on the front panel of the unit
providing integrity of the earth (ground) connection.
F
IGURE 2-2 POWER SUPPLY LABEL
Pin
(ADTS)
European
Colour
U.S.
Color
Function
1
Brown Black Live
4
Blue White Neutral
Centre
Green/Yellow Green Protective Earth (Ground)
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