Oldham MX48 - 2 Installation and Connections; Installation: Recommendations; Electrical Connections of the MX48 Unit (Fig. 8); Alternative Power Supply

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2.1. Installation: recommendations
The MX48 unit can be installed in any premises without an explosive atmosphere. They should
preferably be placed in a ventilated and monitored location (guardhouse, control room,
instrumentation room, etc.).
Attachment is to be ensured in accordance with the dimensions in Figure 1 (3 attachment points).
REMARK
In order to permit the swivelling front panel of the unit to be opened completely, allowance must be
made for opening by rotation through 90° downwards (see fig 2 – end of this manual)
Before making any connections, the unit should be switched off using the main On/Off switch
below and to the left of the FRONT circuit (see Figures 3 rep A).
2.2. Electrical connections of the MX48 Unit (Fig. 8)
The MX48 unit is equipped with a pulse automatic device which enables to connect 24 V DC
voltage in a lack of 220 V AC voltage so we can use no expansive save power supply.
2.2.1. Alternative power supply
- Voltage: 230 V AC (207 to 244 V) 50/60 Hz
- Maximum power: 200 VA
- Maximum current in cable: 1 A
- Cable: 3 x 1.5 mm² (including earth)
- Location of connection terminal blocks: Fig. 8,
- Protection: the phase and neutral wires are protected by time-delayed 2 A
fuses located at the rear of the power module (fig3).
- Voltage: 103 to 122 V AC - 50/60 Hz on option
CAUTION
It is mandatory that the appliance must be earthed. A terminal is reserved for this purpose at the
back of the power module: see Fig. 5. This connection is required in order to ensure correct
operation of the following:
- mains power interference filter,
- protective devices against electromagnetic interference.