The Model 333 and 363 Instant & Operate Delay Timers are industrial quality devices with a high accuracy electronic timing circuit driving two internal SPDT relays. One relay transfers upon application of power, the other relay transfers after a delay period.
Each model is functionally interchangeable and available in multiple voltage/timing range combinations. The Model 333 is a potentiometer (knob-adjust) timer and the Model 363 is a high-accuracy digital input timer.
An “SG” version of this model is available using silver with gold flash contacts. Models 333 and 363 are UL Recognized and CSA Certified.
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