F3200/NDU AS4428.1 Installation Manual
Document No: LT0255
Configuring a FIP
Page 4-6
5 July 2016
Issue 1.22
4.3.4
BATTERY SIZE
The maximum battery size given in the specification, Section 3.3.3, of 220mm x 220mm x
175mm, is imposed by the Cardframe, which obstructs insertion and removal of batteries in
the bottom of the cabinet.
The maximum sizes which fit within this restriction are:
Century Yuasa
PS-12400
40 Ah
IRH BB Battery
BP 40-12
40 Ah
Panasonic
LC-X1242P (AP)
42 Ah
YHZ Power
GP12400
40 Ah
Yuasa
NP38-12
38 Ah
If batteries larger than this are required, then a separate battery box (FP0576) can be used.
For an FP0780/782, or an FP0781/783 with a removable Cardframe, the maximum allowable
size is 220H x 260W x 175D.
Fitting and removing batteries of this maximum size is difficult, and may require the removal
of any modules or brackets fitted in the bottom of the cabinet.
These very large size batteries may also impede the plugging in and removal of modules
fitted to the bottom position of the Cardframe.
Battery Combinations
Large capacity batteries can be made up of two parallel sets of 24V batteries of smaller
capacities. This allows easier fitting, and allows larger capacities, and a greater range of
capacity to be achieved than is possible with a single pair (as indicated above).
4.3.5
BATTERY OVERCURRENT PROTECTION
The MAF/PSU has two parallel PTCs, rated to carry over 3A, for battery overcurrent
protection.
Where the Alarm load from the battery to the FIP is greater than 3A (i.e. with mains failed),
or where a 6A power supply is used, an external, overcurrent device of suitable rating
(greater than 6A), must be included, e.g., LM0571 20A Fused Battery Lead (see Fig 4.3.2).
For this option the PTCs must be shorted by soldering a suitable copper wire between the
two adjacent test VB and BATT+ (TP11 and TP16 on the MAF/PSU). For a FIP
supplied with a 6A PSU, this is done in the factory and the LM0571 is included.
