Power Distribution USAPower Distribution USA

Double Throw Safety Switches

Double throw switches are intended to transfer loads from one power source to another. All 2 & 3-pole double throw switches are suitable for use as service equipment including non-fusible versions when used in combination with a UL listed circuit breaker or fusible switch. All are UL Listed and both horsepower and load break rated. Switches are rated for use on systems up to 10,000A when protected with Class H fuses or 100,000A when protected with Class R or Class T fuses. They can also be used to connect a single source of power to either of two loads. In this application it is necessary to field modify fusible switches so that the fuses are on the load side of the switching mechanism. A cover interlock is provided on all ampere ratings. The operating handle may be padlocked in the off position.

  • Positive Switching Action:
    Quick make, quick break visible blade switching action. More info

  • Rugged Durability:
    All copper current carrying parts except for lugs are constructed from copper. All general duty switches are both load break and HP rated. All are UL98 listed.

  • Flexibility:
    Switches are available in 2 and 3 pole versions and in both fusible and non-fusible designs. Both Type 1 and 3R enclosures are offered. They can be used for both branch and for service entrance applications. Fusible switches take Class H fuses as standard but are easily field convertible to Class R fuses and also to Class J fuses in 100-600A ratings. 30A plug fuse switches are also available.

  • Ease of Installation:
    Increased wire bending space and tangential knock-outs in 60-600A ratings speed installation.

  • Padlockable:
    All general duty switches are padlockable in the OFF position. The door can also be padlocked in the closed position.

  • Availability:
    General duty switches are stock items in our warehouses and will be shipped within 2-3 days after order entry.

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