Fairford XFE Series - Enclosure Ventilation

2 M-85E0-F O81121
XFE300 Series IP00
T1,T2,T3
L1,L2,L3
B
A
C
Mountings suitable for M10 fixings.
Allow clearance of:-
sides - 25mm
Top & bottom - 200mm
Front - 25mm
Weight
Dimensions (mm) A B C
XFE302 to XFE308 490 648 285 65Kg
XFE310 508 738 282 72Kg
XFE312 to XFE319 635 746 322 72Kg
XFE320 635 782 322 77Kg
XFE322 to XFE328 775 775 475 82Kg
XFE100 Series IP20
XFE200 Series IP20
All dimensions in mm
Mounting Centres 250 x 500
suitable for M6 fixings
2 "keyholes" at top 2 open
slots at the bottom.
unit weights
XFE202 to XFE204 - 16Kg
XFE206 to XFE212 - 22Kg
Allow clearance of:-
15mm each side
75mm top & bottom
25mm front
420
222
195
380
150
125
400
All dimensions in mm
Mounting holes suitable for M6
fixings
Unit weights:-
XFE102 to XFE124 7.3Kg
XFE126 to XFE140 8.3Kg
Allow clearance of:-
15mm each side
75mm top & bottom
25mm front
520
340
265
500
250
1 Mechanical Outlines
Enclosure Ventilation
When fitting the XFE into a cabinet, ventilation must
be provided if the heat output of the unit is greater
than the cabinet will dissipate.Use the following
formula to determine the fan requirement. An
allowance has been incorporated into the formula
so that the figure for “Q” is the air delivery quoted
in the fan suppliers data.
An approximation of the heat produced (Watts) by
the XFE, when in circuit, can be made by multiplying
the line current by three.
When the XFE is bypassed the heat output can be
approximated with the formula:-
Watts (soft starter) = Start current x start time in
seconds x number of starts per Hour / 800
Exact figures for unit full load current are in the XFE
manual.
Q = volume of air (cubic metres per hour - m
3
/h)
Wt = heat produced by the unit and all other heat
sources within the enclosure (Watts)
t
max
= maximum permissible temperature within
the enclosure (40ºC for a fully rated XFE)
t
amb
= temperature of the air entering the
enclosure (ºC)
If you prefer to work in CFM, substitute ºF for ºC.
Q is now in CFM.
Q =
4 x Wt
( t
max
- t
amb
)