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Interval Timers - Spring Wound
Spring-wound interval timers are easily operated with a simple rotary knob and are
available in 3 popular styles. These manually set time switches are interchangeable
with standard toggle switches and turn circuits “Off” at the end of a pre-set time
period. Their simple 2-wire design also makes them easy to install in NEMA wall
boxes. Typical applications include controlling electrical circuits for lighting, heating,
ventilating and air-conditioning equipment, attic fans, heat lamps, whirlpools
and saunas, as well as in conjunction with HVAC systems as a thermostat bypass.
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