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Heavy Duty Safety Switches

Designed to be tough, reliable and provide exceptional performance in the most grueling conditions.

Play a crucial role in today’s commercial and industrial settings, isolate power in daily activities, provide an effective way to interrupt power in an emergency, provide lockout on sight disconnect.

Schneider Eletric Square D Picture
Heavy Duty Safety Switches
  • Features

    Heavy Duty Safety Switches:

    • UL Listed
    • 30-1200A 240Vac/250Vdc or 600Vac/600Vdc
    • Fusible and non-fusible
    • NEMA Type 1, 3R, 12 and 12K Enclosures
    • NEMA Type 12 no knockouts -- Meets NEMA Type 3R requirements when drain plug is removed
    • NEMA Type 12K 30 -200 A knockouts on top, bottom and sidewalls
    • NEMA Type 4/4X/5 enclosures
    • Stainless Steel Type 304 or Type 316
    • Fiberglass reinforced polyester NEMA Type 4
    • NEMA 7 and 9 enclosures for hazardous locations
    • Suitable for service entrance equipment
    • Configuration
    • Two or three, fusible switched poles, with or without, insulated groundable solid neutral
    • Four or six, fusible switched poles, without insulated, grounded, solid neutral
    • Two, three, four, or six, non-fusible switched poles, without insulated, grounded, solid neutral
    • Up to 200 kA Short Circuit Current Ratings, utilizing appropriately rated Class R fuses and Class R fuse kits or Class L and Class J fuses
    • Horsepower rated for motor applications -- 500hp maximum
    • Quick-make, quick-break operating mechanism
    • Visible blade switches for positive "OFF" indication
    • Optional viewing window allows visual verification of blade position without opening door
    • Red and black handle indicates the ON (red) or OFF (black) condition of the switch
    • Dual cover interlock prevents the cover from being opened when the switch is ON and prevents the switch from being turned ON when the cover is open
    • Handle lock-off provision for multiple padlocks -- "OFF" position
    • Cover can be padlock closed
    • Tangential knockouts, where provided, lessen the need for conduit offset bends
    • Spring reinforced plated copper fuse clips
    • Seismically Qualified to the:
    • 2010 ASCE 7
    • 2012 International Building Code (IBC)
    • 2013 California Building Code (CBC)
    • State of California’s Office of Statewide Health Planning and Development (OSHPD) requirements for seismic certification


    Reliable performance

    Long term durability

    • Mechanical endurance of F series is guaranteed to exceed three times the NEMA requirements
    • Enclosed operating mechanism design reduces the amount of dust and other contaminants that shorten the mechanism’s operating life.
    • More current carrying copper
    • Result -- switches operate cooler
    • Cooler temperatures -- longer life
    • Galvanized Steel with E-Coat on all NEMA 3R Enclosure
    • Meets or exceeds NEMA KS1

    Efficient Installation

    • Tangential knockouts, where provided, lessen the need for conduit offset bends
    • Generous wire bending space
    • Factory or field installed Insulated, bonded solid neutral and equipment ground assemblies
    • Wire terminations suitable for aluminum or copper conductors
    • Field installable rainproof B Hubs
    • Field installable watertight H Hub

    Operation Safety Features

    • Two tone color handle clearly shows switch's status
    • Red "ON"
    • Black "OFF"
    • Dual Cover Interlock
    • The switches includes an oversized arc suppressor, a key feature in the ability of the switch to break the load by effectively attenuating the arc for a clean interruptionSwitches are stocked and ready for delivery from our warehouses


    Circuit disconnect

    • Service entrance equipment
    • Point of load

    Circuit protection (fusible switches only)

    • Overload or thermal protection
    • Short circuit or high fault protection

    Environmental protection

    Personnel protection

    • From live parts
    • Arcing during switching
    • During maintenance of loads

    Customer Locations Switch Is Typically Applied:

    • Mining and Mineral
    • Commercial Buildings
    • Manufacturing
    • Industrial Buildings
    • Water Wastewater
    • Healthcare Facilities
    • Educational Campuses


    • Heavy Duty Safety Switch Left Side View
    • Heavy Duty Safety Switch Right Side View
    • Heavy Duty Safety Switch Back View

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