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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.

Time Mark products are only sold through authorized Time Mark distributors. The "Buy Online" button will open a new browser window on Octopart.com and display Time Mark distributors that sell your desired product.

If Octopart does not currently display the Time Mark product you desire, please call us Toll-Free at (800) 862-2875 or use the Find a Distributor link on our website to find a distributor near you.

Additional Information


CSA and UL





Timing Range

0.1-102.3 Sec.

Timer Function

Instant & Operate Delay

Voltage Range