Technical Data Bulletin

Catalog Number Description Class 3100
Catalog Number Description
Table 14 - Heavy Duty Switch Catalog Number Description
Number Segment
Character
Description
H 3 2 1 N RB
—
Type of Switch
Fusible
H = Heavy duty
Non-
Fusible
HU = Heavy duty
Blades – Switched
Poles
2
Two-poles
3
Three-poles
4
Four-poles
6
Six-poles
Voltage Rating
2 240 Vac / 250 Vdc Maximum
6 600 Vac / 600 Vdc Maximum
Ampere Rating
1 30 A
2 60 A
3 100 A
4 200 A
5 400 A
6 600 A
7 800 A
8 1200 A
Neutral N
Factory-installed neutral (neutrals are field-installable
on most heavy duty safety switches).
Enclosure
No suffix
NEMA Type 1
A
NEMA Type 12K
AWK
NEMA Type 12 (without Knock Outs)
DF
NEMA Type 4X Fiberglass Reinforced Polyester
DS
NEMA Type 4, 4X, and 5 (NEMA Type 304 stainless
steel)
DX
NEMA Type 4X KrydonTM Fiberglass Reinforced
Polyester
R
NEMA Type 3R
RB
NEMA Type 3R (with bolt-on hub provision)
SS
NEMA Type 4, 4X, and 5 (NEMA Type 316 stainless
steel)
See Table
21 on
page 24
NEMA Type 7 / 9 (Cast aluminum)
Factory Modifications
CLR
Class R fuse kit (Rejects all but Class R fuses)
EI or EI2
Electrical interlock kit (EI = 1 NO / 1 NC contacts. EI2 =
2 NO / 2 NC contacts)
GL
Equipment ground lugs
31
3100CT1602 17
31. Equipment Ground Kits (Al/Cu) are factory installed standard in 30–200 A, Series F, NEMA Type 4/4X/5 (stainless steel), 12 and 12K.
Equipment Ground Kits are standard on all receptacle switches and Series F, 30–200 A, four- and six-pole switches.