A compact and economical motor-driven cam timer, the 324 precisely controls one to twelve load ircuits through easily-set screwdriver adjustc able cams. Each timer provides a wide range of cycle times through a set of interchangeable gears. EASY AND PRECISE CAM ADJUSTMENT: With ATC’s unique split-cam design, each side of the cam is separately screwdriver-adjustable in either direction: either side determines the precise instant during the cycle when the switch will actuate, the other side determines how long the switch will remain actuated. Adjustments are easy and precise: 1/4 turn of the a djusting screw equals 0.5% of cycle time. A setting disc, calibrated in 1% increments, facilitates program set-up and ndicates cycle progress. i E24305 WIDE RANGE OF CYCLE TIMES: The 324 is available with a choice of 9 synchronous motors that provide more than 270 cycle times between 9 SEC and 15 HRS. Each motor provides an adjustable range of 21 cycle times, with a ratio of over 2.5:1, through a set of interchangeable gears. Changing gears is a simple operation that takes only a few minutes. Precision Switch Cam Programmer ACCURACY: The repeat accuracy and setting accuracy of the 324 are both w ithin ± 0.25%. Follower fingers precisely track the contour of the cams, accurately operating the precision switches with quick-break action. SEQUENCE CONTROL: The 324 can be ordered without a motor and with a 1 inch long shaft extension on either or both ends, for use as a rotary cam limit switch. SPECIFICATIONS CYCLE TIMES Choice of ON-Delay or OFF-Delay operation (not field-convertible). More than 270 cycle times, from 9 SEC to 60 HRS., from a choice of interchangeable motors and gears; each motor provides more than 20 cycle times. REPEAT ACCURACY ±0.25% of cycle time. LOAD SWITCHES TYPE: Precision switches; one for each cam CONTACT ACTION: SPDT(Form C) CONTACT RATING: 10 A at 120 VAC (non-inductive). 1/3 HP at 125/250 VAC MINIMUM CONTACT 1% of cycle time ACTUATION TIME: PRECISION SWITCH CAM PROGRAMMER ONE TO TWELVE PRECISION SWITCHES: Whether used as a time or sequence programmer, the 324 can be ordered with any number of camoperated switches from one to twelve. Each SPDT precision switch is rated at 10 amps, 120 VAC and is 1/3 hp rated at 120 or 240 VAC. DRIVE MOTORS SPEED: choice of 12 TYPE: Synchronous; permanently FRAME SIZES 3, 6, 9 and 12 cam frame sizes are provided lubricated; integral slip clutch for manual advance; anti-backup to CAMS NUMBER: 1 to 12 (or multiples up to 12, by prevent damage to switches combining timer assemblies); cams VOLTAGE: 120 VAC, 50 or 60 cycles; may be factory-set. 240 VAC, 50 or 60 cycles. CUT: Standard or 50% cut, as specified POWER 12 watts max (standard cams allow contact closure CONSUMPTION: adjustment of 1 to 45% or 55 to 99%, DUAL DRIVE: two motors may be used, 50% cut cams allow contact closure special applications adjustment of 12 to 52% or 48 to TORQUE-SPEED At cycle times of 30 SEC or 88%; custom cams available with CAPABILITIES: longer, the 324 can drive and 2 or 4 or cuts. switch 12 contacts simultaneously; CONSTRUCTION: below 30 SEC, the motor may be Two-inch diameter split type; limited in its ability to drive or made of Delrin switch a number of contacts LIFE EXPECTANCY MECHANICAL: over 10,000,000 operations simultaneously. CONTACTS: over 1,000,000 operations at TEMPERATURE RATING 32 to 140°F (0 to 60°C) less than 1 amp WEIGHT NET: from 1-1/2 lbs. for the 3 cam unit up to 3-1/2 lbs. for the 12 cam unit SETTING ACCURACY ±0.25% of cycle time. Automatic Timing & Controls NEMA 12 molded case for one model 324 with maximum of 3 cams. (See Accessories) (Optional)

324C Series PRECISION SWITCH CAM PROGRAMMER MODEL NUMBER MODEL NUMBER 324C MOTORS 1 1 NUMBER OF SWITCHES Motor 2 motors 2 1 Switch , 3 Cams 01 No motor 3 2 Switches, 3 Cams 02 Special 0 3 Switches, 3 Cams 03 4 Switches, 6 Cams 5 Switches, 6 Cams 6 Switches, 6 Cams 7 Switches, 9 Cams 8 Switches, 9 Cams 9 Switches, 9 Cams 10 Switches, 12 Cams 11 Switches, 12 Cams 12 Switches, 12 Cams VOLTAGE & FREQUENCY 120/60 A 240/60* B 120/50 C 240/50* D No motor X OPTIONS None 01 1/4" dia. x 1" long shaft extension 02 right end (Units with one or no motor) 1/4" dia. x 1" long shaft extension 03 left end (Units...

THIS TABLE APPLIES TO Q MOTOR ONLY MAXIMUM NUMBER OF CONTACTS SWITCHING TOGETHER Total Number of Contacts 7 8 5 6 6 3 High torque permanent magnet. No brake diode required on stop cycle units. TORQUE—SPEED CAPABILITIES PRECISION SWITCH CAM PROGRAMMER SECONDS resulting speed at 60 cycles SECONDS resulting speed at 50 cycles Time Cycle SEC One Motor 3.0 3.6 4.0 4.5 4.8 5.0 all slower cycles listed for this motor 15 RPM Motor –Q– The ability of the 324C to trip a number of load contacts simultaneously is determined in the chart below. Pick the vertical column that corresponds to the total number...