Technical Data Bulletin

Class 3100 Heavy Duty Safety Switches
Accessories
Square D by Schneider Electric brand heavy duty safety switches are UL Listed for
use with the following accessories:
Rainproof Bolt-On Hubs
Rainproof Bolt-On
Hubs
Order bolt-on hubs separately from Rainproof Bolt-on, page 30.
• UL Listed for indoor or rainproof applications
• Suitable for use with conduit having ANSI standard taper pipe thread
• NEMA Type 3R enclosures with catalog number ending in RB have a bolt-on
closing cap factory installed
◦ Accepts 3/4 in. (19 mm) through 2-1/2 in. (63 mm) bolt-on hubs
• Switches with R suffix have blank top endwalls
◦ Accepts 3 in. (76 mm) through 4 in. (101 mm) bolt-on hubs
◦ Conduit entry holes must be cut in the field
Table 26 - Rainproof Bolt-on
Conduit
Size
3/4 19 1 25
1–
1/4
31
1–
1/4
38 2 50
2–
1/2
63 3 76
3–
1/2
88 4 101
Cl-
os-
ing
Capin.
mm
in.
mm
in.
mm
in.
mm
in.
mm
in.
mm
in.
m-
m
in.
mm
in.
mm
Hub Cat.
Number
B075 B100 B125 B150 B200 B250 B300 B350 B400
BC-
AP
Watertight Hubs
Watertight Hubs
• UL Listed for dust tight and watertight applications
• Suitable for use with conduit having ANSI standard taper pipe thread
• Watertight hubs are field installed on NEMA Type 4/4X/5 stainless steel and
• NEMA Type 12/3R and 12K enclosures
• Watertight hubs are available in zinc or chrome plated finish
Table 27 - Watertight Hubs
Con-
duit
Trade
Size
59
1/2 12 3/4 19 1 25
1–
1/4
38
1–
1/2
38 2 50
2–
1/2
63 3 76
3–
1/2
88 4 101
in.
m-
m
in.
m-
m
in.
m-
m
in.
m-
m
in.
m-
m
in.
m-
m
in.
m-
m
in.
m-
m
in.
m-
m
in.
m-
m
Stand-
ard Zinc
Hub
Cat.
Number
H050 H075 H100 H125 H150 H200 H250 H300 H350 H400
Chrome
Plated
Hub
Cat.
Number
H050CP H075CP H100CP H125CP H150CP H200CP
— — — —
30 3100CT1602
59. Gaskets are provided.