328E-200-F-10-XX - 

A versatile dial-adjustable time delay relay, the ATC 328 provides a choice of ON-delay, OFF-delay or interval operation for any timing period between 50 mSEC and 10 hours – all in the same timer. Based on a unique digital circuit, it features cycle progress annunciation and is suitable for the most demanding industrial service.

DESIGNED FOR INDUSTRIAL SERVICE: With a load relay that is rated for 100,000,000 mechanical operations, and power supply that protects circuit components against the voltage transients that are typical of industrial plants,the 328 has a long life expectancy even in tough environments.

CYCLE PROGRESS INDICATION: The 328's LED annunciator provides a unique and extremely effective method of cycle progress indication. Off before timing, the LED blinks at an ever-increasing rate as the cycle progresses: once every 31⁄2 seconds during the first 10% of the cycle, twice during the second 10%, and so on. At time-out, the LED stays on constantly, pulsing at a high rate. (In the 1 and 10-second ranges, the LED is off before timing, steady on during timing, and pulsing on after time-out.)

VERSATILE MOUNTING: The standard 328 has an 11-pin base which accepts push-on connectors or plugs into a surface-mounted socket. Since all connections are made to the socket, the 328 is readily removed without disturbing the wiring. It is also available with an optional quick-connect plug and brackets for flush panel-mounting.

MULTIPLE RANGES REDUCES INVENTORY: Because the 328 has six switch-selected ranges–from 1 SEC to 10 hours–each timer can provide any dial-adjustable timing period between 50 ms and 10 hours—thus greatly reducing inventory requirements especially for large users. The range selector switch knob can be easily removed to prevent unauthorized range change.

HIGH ACCURACY: The 328's digital circuit maintains rated accuracy from cycle to cycle, regardless of reset time. Its oscillator-based circuit is also effectively compensated for changes in temperature and voltage and thus achieves excellent overall accuracy.

VERSATILE CONTROL CAPABILITY: Every 328 can be used for either ON-Delay, OFF-Delay or interval operation, depending on how its terminal block is wired.