Technical Data Bulletin

Heavy Duty Safety Switches Class 3100
Fuse Pullers
Class J Fuse
Provisions Alternate
mounting holes
make for easy
conversion to Class
J fuses
Tangential
Knockouts
Wall
• Factory installed fuse pullers are standard on 30–100 A, NEMA Type 4/4X/5
stainless steel, NEMA Type 4X fiberglass reinforced polyester and NEMA Type 12
or 12K switches; Available as a kit for field installation on 30–100 A, F Series
switches, NEMA Type 1 and 3R switches
• 30–600 A switches are shipped with standard Class H fuse spacing. These
switches will accept Class R fuses also; A field-installed rejection kit is available,
which when installed, rejects all but Class R fuses;
• See page 32 for Class R Fuse Kits
• Fuse load base(s) can be repositioned to accept Class J fuses on
• 30–600 A, 600 V switches and 100–600 A, 240 V switches;
• 600 A switches also require a mounting kit (catalog number H600J)
• Multiple padlock provision in OFF position (three 3/16-5/16 in. (4-7 mm) shank
padlocks)
• Provisions to lock ON with one 3/8 in. (9 mm) padlock available factory installed,
except for NEMA Type 7/9 and NEMA Type 4X fiberglass reinforced polyester
switches
• Tangential knockouts, where provided, lessen the need for conduit offset bends
• Lock-OFF provision is standard on all heavy duty safety switches
3100CT1602 21