5
2.1.3 Rack-Mounting the A75D(E)
The A75D(E) can be installed in most relay racks with standard EIA hole spacing. If a relay rack is needed they
are available for purchase from La Marche. The
4B75 & 475
cases are shipped from the factory with the
necessary brackets installed for rear mounting on a 19” relay rack
(The same bracket is used for wall mounting
and cannot be removed).
If center mounting is desired a rack-mounting kit is available for the
4B75
case
(P3-
4B-R03A)
, the
475
case
(P3-4-R03A)
, and the
975
case
(P3-9-R02A)
. The rack mounting kit for both the
4B75
case and the
475
case allows for mounting on either a 19” or 23” rack. The rack mounting kit for the
975
case
only allows for mounting on a 23” rack.
Before installing the charger on the rack locate the placement of the conduit entrances and be sure the
knockouts on the sides or bottom of the charger are accessible after the charger is rack-mounted.
The table and figure below shows rack-mounting options for A75D(E).
Rack Mounting Procedure
To rack mount the A75D(E), first mount the unit onto
the rack-mounting brackets using the hardware
supplied. Second, install the brackets onto the rack.
Provide at minimum 6in (152mm) of air space above
and below to allow for cooling.
If you are center-mounting the charger, install the bracket on the front side of the relay rack. If you are
rear-mounting the charger, install the bracket to the back side of the relay rack, as pictured in the Figure 5
above-left.
Case
Number
Rear
Mounting
Center
Mounting
4B75
Yes
(19” rack only)
Yes
(with optional hardware)
475
Yes
(19” rack only)
Yes
(with optional hardware)
975
No
Yes
(with optional hardware)
(23” rack only)
72
No
No
Table 4 - Available Rack Mount Configurations
Rear
Mounting
Center
Mounting
Figure 5 - Rack-Mounting Configurations
(4B75 Case)
