27 IFP-300 / IFP-300ECS Manual P/N LS10145-001SK-E:B 12/18/2017
4.3.1 RBB Accessory Cabinet
The Model RBB Accessory cabinet can be used when your backup batteries requirements use backup batteries that are too large to fit
into the main control panel cabinet. The RBB cabinet holds batteries up to the 35 AH size. The RBB dimensions are 16" W x 10" H x 6"
D (40.64 cm W x 25.4 cm H x 15.24 cm D).
Installing the RBB Accessory Cabinet and Batteries
To properly install the accessory cabinet and backup batteries, follow these steps:
1. Mount the accessory cabinet. See Figure 4.4 for the four cabinet mounting holes.
• If mounting onto drywall the accessory cabinet must be mounted onto 3/4-inch plywood. This is necessary because the weight of
the batteries inside the accessory cabinet could cause the cabinet to pull away from the drywall.
• When mounting on concrete, especially when moisture is expected, attach a piece of 3/4-inch plywood to the concrete surface
and then attach the RBB cabinet to the plywood.
• If using the battery cable extenders provided (P/N 140643), mount the RBB cabinet no more than 18" away from the main
control panel cabinet. This will ensure that the battery cables reach the battery terminals.
Figure 4.4 RBB Cabinet Mounting Holes
2. Connect the main control panel battery cables to the battery cable extenders as shown in Figure 4.5.
Figure 4.5 Splicing Control Panel Battery Cable to RBB Battery Cable Extenders
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