Alpha Technologies Cordex CXCRF 48-300W - Manual (Page 22)

0300072-J0 RevA Page 18 of 46
3.3 Installation
This part is provided for the guidance of qualified personnel to install the product, which shall be mounted in a
clean and dry environment.
3.3.1 Safety Precautions
WARNING!
Hazardous voltages are present at the input of power systems. The DC output from the rectifiers
and battery system, though not dangerous in voltage, has a high short circuit current capacity that
may cause severe burns and electrical arcing.
3.3.2 Tools and Equipment Required for Installation
• DC voltmeter
• Labels or masking tape and marker
• Torque wrench (for earth)
• Slot head screwdriver to fit the terminal blocks
• Up to 4mm² insulated copper wire for connecting the battery (colour according to local standards)
• Up to 2.5mm² insulated copper wire for connecting the loads (colour according to local standards)
• Up to 1.5mm² insulated white cable for digital in and outputs
• 2.5mm² (recommended) insulated green/yellow cable for EMC ground connection
• Battery temperature sensor kit
• High strength, flame-proof tape (such as duct tape)
3.3.3 Mounting the Shelf
All versions of the 48-300W modular switched mode rectifier system are intended for rack-mount installation
only, as shown in Figure 12. The shelf can be fixed with 19” or ETSI brackets. The brackets delivered together
with the shelf can be used for both 19” and ETSI mounting. Remove and rotate the bracket to convert from 19”
to ETSI or vice-versa.
1. Before installation, clean all fixing points on the 48-300W Modular Switched Mode Rectifier System shelf
and mounting brackets. Bring them to a bright finish. Then coat them with an anti-oxidant (such as
Sanchem Inc. No-Ox ID “A-Special Electrical Grade” or equivalent).
2. Attach the mounting brackets with the self-tapping screws and the paint piercing washers provided with the
brackets to ensure adequate grounding between the 48-300W Modular Switched Mode Rectifier System
shelf and the chassis of the enclosure.
3. Two chassis supports (not delivered) must be mounted under the shelf, as shown on Figure 12.
WARNING!
Do not operate the 48-300W rectifier system on a table on any other surface.