Floor loads figure, Cubicle footpads Rear

Floor loads (figure 5)

◗the floor supports the weight of each cubicle via the four 60 mm diameter pads at the bottom of the feet screwed into the corners of the frame;

◗the exact locations of the footpads are indicated in the figure;

◗normally the cubicles do not have to be secured to the floor; the footpads nevertheless have holes with an average depth of 12 mm designed for the fitting of M16 anchor bolts;

◗to determine the stresses applied by the cubicle feet on the floor, divide the cubicle weight (see the first 3 tables of this manual) by the total area of the 4 footpads (110 cm2).

Installation (cont.)

Cubicle footpads
rear	33	cubicle width	33
		less 66 mm
	33		33
four 60 mm dia.
footpads with
12 mm average
depth holes for
M16 anchor bolts
	736
	33		33

front

Fig. 5

Cubicle layout on false floor or normal floor (figures 6, 7, 8)

◗	the cubicles can be installed directly
up against the rear wall;
◗	an overall clearance of 400 mm must
be left above the entire surface of the

Layout for a single-unit UPS with one battery cubicle

cubicles for ventilation;

◗ a side clearance of 25 mm is

provided by the vertical bars on the

sides of the cubicles to allow door

opening. For cubicles mounted side by

side, the two adjacent bars ensure an

inter-cubicle clearance of 50 mm;

◗ a minimum clearance of 1000 mm is

required in front of the cubicles to allow

complete opening of the doors and

easy access for maintenance work

(replacement of subassemblies);

◗ for extended battery backup times or

high output systems, the UPS may

have several battery cubicles (see the

table at the end of the previous

chapter). If this is the case, install the

battery cubicles on the left side of the

rear

>25	cubicle width W	50	cubicle width W
>25	(see table)	50	(see table)
	(see table)		(see table)
	battery cubicle		rectifier-inverter cubicle

spacing uprights

> 1000

front

cutouts necessary for

cable entry from underneath a false floor:

200 mm x (W – 160 mm)

can equal 0

800

location of trench under cubicles (if applicable)

rectifier-inverter cubicle with the cubicle

containing the battery circuit breaker

QF1 closest to the rectifier-inverter

cubicle (figure 7);

◗ when an auxiliary cubicle is included

in the UPS, it should be installed to the

left of the battery cubicle(s);

◗ connection via the bottom

The connection cables may be run in three ways:

◗in a cable trench running underneath the front of the cubicles (see trench dimensions and layout in figure 6),

◗under a false floor.

A cutout must in this case be made in the floor for cable entry (see figure 6 for dimensions),

Fig. 6

Layout for a single-unit UPS with several battery cubicles

rear

battery cubicle 1

battery cubicle 2 containing batteryrectifier-inverter cubicle circuit breaker QF1

front

Fig. 7

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