Cutler-Hammer
Double Throw Heavy Duty
Safety Switch

Used to transfer service from a normal power source to an alternate source or to switch from one load circuit to another. The heavy duty double throw switch is available as a fusible or non-fusible, 600V AC, 250V DC maximum switch.

Features, Benefites and Functions

• Recommended for systems where the available fault current does not exceed 100,000 rms symmetrical.
• 30 through 800 ampere switches are horsepower rated.
• 600V AC, 250V DC maximum.
• Fusible or non-fusible.
• Switches are 100% load break and 100% load make rated (fusible devices are rated at 80% of the current rating of the fuses installed).
• Approved for service entrance with neutral or ground lug kit installed.
• Wiring configuration from factory allows a single load to be supplied by a normal or alternate source. Can be field modified to allow two loads to be alternately supplied by a single power source.
• Non-fusible double throw switch can be used to feed a single throw fusible switch, the normal method to provide manual transfer from one power source to another in 800 ampere and larger switches.
• Ample wire bending space provides for easier installation.
• Visible double break rotary blade mechanism. Two points of contact provide a positive open and close, easier operation, and also help prevent contact burning for longer contact life.
• Triple padlocking capability. Personnel safety feature since the large hasp can accommodate up to three 3/8-inch (9.5 mm) shank locks.
• Clearly visible handle. The position (ON or OFF) can be clearly seen from a distance.
• Additional locking capability. Cabinet door can be further pad-locked at the top and bottom.
• Clear line shield protects against accidental contact with energized parts. Probe holes enable the user to test if the line side is energized without removing the shield.

Brochure Downloads

Application and Product Overview  (PDF : 4839Kb)

Selection Guide
Switching Devices Product Guide  (PDF : 2337Kb)
Cutler-Hammer 2003 Distribution Catalog - Section 8  (PDF : 1906Kb)

Specification
Cutler-Hammer Consulting Application Catalog - Section M1  (PDF : 188Kb)