Lutron Electronics Switch - Manual (Page 14)

R 14 Installation Guide for Switching Panels
Ratings
Softswitch128
TM
(XPS)
3Ø 4W or
1Ø 3W
Main Lug Accepts:
#4 AWG to 250
KCMIL (MCM)
(25-120 mm
2 )
120 V Panels
with Branch Circuit Breakers
XPS
Model Switch
Legs Feed
Type Max
Feed
XPS8
XPS12
XPS16
XPS20
XPS24
XPS28
XPS32
XPS36
XPS40
XPS42 8
12
16
20
24
28
32
36
40
42
200 A
225 A
Use the charts below to determine feed and load wiring sizes for Softswitch128 panels. Note that load circuit
wiring sizes are shown bottom right.
277 V Panels
with Branch Circuit Breakers
XPS
Model Switch
Legs Feed
Type Max
Feed
XPS8
XPS12
XPS16
XPS20
XPS24
XPS28
XPS32
XPS36
XPS40
XPS42 8
12
16
20
24
28
32
36
40
42
Load Circuit Wiring
Terminal blocks accept one #14-#10 AWG
(2.5-4.0 mm
2 ) wire. Preferred entry is from the top
of the panel.
1Ø 2W
#14-#10 AWG
(2.5 -4.0
mm
2 )
Feed-Through (FT) and Rough-In (RI)
Panels (120 V
, 277 V , 120/277 V )
FT RI
Model Model
Switch
Legs Feed
Type Max
Feed
XPS8 SINT8
XPS12 SINT12
XPS16 SINT16
XPS20 SINT20
XPS24 SINT24
XPS28 SINT28
XPS32 SINT32
XPS36 SINT36
XPS40 SINT40
XPS44 SINT44
XPS48 SINT48
8
12
16
20
24
28
32
36
40
44
48
20 A
3Ø 4W or 1Ø 3W
Main Lug Accepts:
#4 AWG to 250
KCMIL (MCM)
(25-120 mm
2 )
Main Lug Accepts:
#4 AWG to 350
KCMIL (MCM)
(25-185 mm
2 )
250 A
300 A
220-240 V and 230 V Panels
with Branch Circuit Breakers
XPS
Model Switch
Legs Feed
Type Max
Feed
XPS8
XPS12
XPS16
XPS20
XPS24 8
12
16
20
24 3Ø 4W
Isolation Switch
Accepts:
#14-#2 AWG
(2.0-35 mm 2 )
125 A