Product Brochure

12
Mill Duty Safety Switches
GE’s Mill Duty safety switches are designed for mill, foundry and industrial applications where safety, high performance and
continuity of service are required. A standard NEMA 12 enclosure protects the interior from dust, lint, fibers, coolants, metal filings
and other non-corrosive contaminants. The stainless steel NEMA 4/4X enclosure additionally shields the interior from hose directed
water, splashing and falling liquids. Interlocks on all enclosure covers assure gasket compression before the switch can be turned ON.
These switches are suitable for use as service entrance equipment when installed in accordance with the National Electric Code.
Mill Duty switches are available in 30-600 amps, 600 Vac, 600 Vdc maximum, fusible and non-fusible units, and in NEMA Type
4/4X (water and dust-tight, corrosion resistant) and Type 12 (drip and dust-tight) enclosures. Horsepower ratings are to UL Listed
maximums. Short circuit ratings are UL Listed to 200,000 rms symmetrical amps when Class J or R fuses are installed.
All GE Mill Duty safety switches carry the following certifications:
UL Listed and cUL Listed (UL98 Enclosed Switches/CSA-C22.2 No. 4-04)
Federal Specification WS-865C
NEMA Enclosed Safety Switch Standard KS1-2013
Seismic Certified
Features
1
2
3
4
5
6
7
Highly visible ON/OFF label
Donut handle ideal for hook stick operation
and accepts 3 padlocks in the OFF position
Manual interlock defeat knob permits contact
inspection when switch is OFF
Three or four point mounting brackets
Unobstructed side wiring gutter
Easily removable cover
Spring reinforced fuse clips assure reliable
contact for cool operation. Suitable for Class
H, K, J or R fuses
Equipment ground lugs provided. Lugs
approved for both copper and aluminum wire;
60/75° C rated tang lugs are field convertible
to compression (crimp) connectors
1
2
3
4
5
6
7
8
8
Safety Ease of Installation
and Maintenance