Technical Data Bulletin

General Duty Safety Switches Class 3100
Tangential Knockouts
Wall
• Series F handle/lock-plate is a field-replaceable modular design
• Series F operating mechanism is an enclosed, field-replaceable, modular design
• Series F NEMA Type 3R covers have side opening construction
• Top endwalls in 30–200 A NEMA Type 3R switches have bolt-on hub provisions
• Multiple padlock provisions in “OFF” position
• Tangential combination knockouts alleviate the need for offset bends
Enclosures
Enclosures are finished in gray, baked enamel that is electrodeposited on cleaned,
phosphatized steel.
• NEMA Type 1 general purpose, indoor
• NEMA Type 3R general purpose, outdoor
Accessories
Rainproof Hubs
RB Hub Provisions
30–200 A
Bolt-on hubs for rainproof applications. Switches with RB suffix accept 3/4 in. (19 mm)
through 2-1/2 in. (63 mm) bolt-on hubs. Switches with R suffix have blank endwalls.
Table 2 - Rainproof Bolt-On Hubs—For Use on NEMA Type 3R Enclosures
Con-
duit
Size
3/4 1 1–1/4 1/1/2 2 2–2/1 3 3–1/2 4
Clos-
ing
Cap
Hub
Cat.
Num-
ber
B075 B100 B125 B150 B200 B250 B300 B350 B400 BCAP
NEMA Type 3R rainproof enclosures with a catalog number ending in RB, have a bolt-
on closing cap factory-installed. Order bolt-on hubs separately. Refer to the
information in Table 2 above. Hubs through size 2-1/2 in. (63 mm), can be directly
installed on RB devices. Devices requiring 3 in. (76 mm) or larger hubs, must have
holes cut in the field. Gaskets are provided on 3 in. (76 mm) and larger hubs. All hubs
are UL Listed for indoor and rainproof applications and suitable for use with conduits
containing an ANSI standard taper pipe thread.
Class R Fuse Kits
Class R Fuse Kits
Series F Switches
Only
• This kit rejects all but Class R fuses when installed
• For systems up to 100,000 rms symmetrical amperes
3100CT1602 7