LiftMaster H J LOW PROFILE ELEC.BOX Manual - Page 15

THREE PHASE WIRING DIAGRAM 1742-3 WARNING Always Disconnect Power Whenever Installing or Servicing the Door Operator. RADIO RECEIVER R1 R2 R3 AUX.TERMINAL BLOCK FOR RADIO C NO AUX.OPEN L/S NC ORANGE YELLOW RED RED YELLOW PURPLE ORANGE OPEN LIMIT SWITCHES OPEN L/S NC C ORANGE ORANGE PURPLE RED YELLOW GREY PURPLE CLOSE A1 A2 13 14 5 6 3 4 1 2 PURPLE PURPLE PURPLE BLACK BLACK WHITE ORANGE ORANGE A1 A2 13 14 5 6 3 4 1 2 OPEN ORANGE YELLOW BLACK BLACK BLACK R1 RELAY ( 3/4 HP & BELOW ) BROWN RED PURPLE PURPLE C NO NC ORANGE ORANGE RED ( 1 HP & ABOVE ) ( 3/4 HP & BELOW ) INTERLOCK ( OPTIONAL ) YELLOW GREY PURPLE TO TERMINAL #2 PURPLE PURPLE TO TERMINAL #3 TIMER ( OPTIONAL ) GREY GREY C NC SAFETY L/S CLOSE LIMIT SWITCHES PURPLE NC CLOSE L/S C PURPLE BLACK BROWN LOAD 24VAC YELLOW BLACK XFMR **LINE WIRE NUT ( 3/4 HP & BELOW) *SEE NOTE: T1 L1 T2 L2 T3 L3 BROWN 96 BROWN 95 OVERLOAD ( 1 HP & ABOVE ONLY ) OVERLOAD (UP TO 3/4 HP) 230V. BRAKE SOLENOID ( WHEN REQUIRED ) RED ORANGE GREY ORANGE PURPLE PURPLE RED ORANGE YELLOW ORANGE BROWN BROWN ORANGE YELLOW YELLOW GREY BLACK BLACK BLACK BROWN BROWN BL-BK BL-BK BRAKE ( WHEN REQ'D ) TO MOTOR GY BR P BR Y BL-BK 1 74 J 2 85 3 96 J BL-BK 230V. CONNECTION GY BR P BR Y 17 28 39 BL-BK 4J 5 6J BL-BK 460V. CONNECTION GY BR P BR Y BL-BK 1 J 2 3 J BL-BK 575V. CONNECTION OVERLOAD 575V. BRAKE SOLENOID ( WHEN REQUIRED ) OVERLOAD (UP TO 3/4 HP) 230V. BRAKE SOLENOID ( WHEN REQUIRED ) 1 2 3 4 5 7 10 L1 L2 L3 OPEN CLOSE STOP EXT. INTLK. TO OPEN AND CLOSE L1 L2 L3 **3 PHASE GROUND POWER IN SAFETY EDGE * - Shipped from Factory CLOSE CONTROL WIRING OPTIONS *C2 WIRING - Constant Presssure to Close RED WIRE ON TERMINAL #2 (Shipped from Factory) B2 WIRING - Momentary Contact to Close MOVE RED WIRE FROM TERMINAL #2 TO TERMINAL #3 ** - Transformer Primary Voltage same as Line Voltage. TO REVERSE MOTOR DIRECTION INTERCHANGE PURPLE & GRAY WIRES. 15