WC3445 DESCRIPTION OF PARTS
4
2. 4 Power Supply
The WC3445 is powered by a mains supply with an input voltage of 100-250VAC 50-60Hz
and with an input current of 60 to 24 mA, depending upon the input voltage. Power
consumption is approximately 6 watts. The WC3445 is provided ex-factory with a 250mA
internal fuse. AC Mains power is connected via the IEC inlet on the rear of the unit.
An alternative -48VDC powered unit is available. The input voltage and current ranges are
-36 to -72 volts DC, 200 - 100mA. A Buccaneer type socket is fitted to the rear panel, and a
plug is provided with the unit for the customer’s own wiring. The connections are labelled on
the rear panel of the WC3445.
On some units, an additional Ground stud may be located on the rear panel to permit a
separate Ground connection to be made.
Figure 2. 3 -48VDC connections
Note:
The WC3445 must be connected to mains safety earth for correct operation.
Excessive voltages are present inside the unit. There are no user serviceable parts inside
the unit, and the cover should not be removed by unqualified personnel. The unit must not
be exposed to damp or condensing conditions.
Pin no
Connection
1
-48VDC
2
Ground
3
0VDC
