usitt 37-CONTACT (TWELVE-CIRCUIT) CONNECTOR CONTACT NO. NOTES TO F FUNCTIO CO TACT NO. FUNCTION 1 Circuit #1 Ungrounded Conductor 20 Circuit #7 Grounded Conductor 2 Circuit #1 Grounded Conductor 21 Circuit #7 Grounding Conductor 3 Circuit =;-1 Grounding Conductor 22 Circuit #8 Ungrounded Conductor 4 Circuit =2 Ungrounded Conductor 23 Circuit #8 Grounded Conductor 5 Circuit ==2 Grounded Conductor 24 Circuit #8 Grounding Conductor 6 Circuit #2 Grounding Conductor 25 Circuit #9 Ungrounded Conductor 7 Circuit #3 Ungrounded Conductor 26 Circuit #9 Grounded Conductor 8 Circuit #3 Grounded Conductor 27 Circuit #9 Grounding Conductor 9 Circuit #3 Grounding Conductor 28 Circuit #10 Ungrounded Conductor 10 Circuit #4 Ungrounded Conductor 29 Circuit #10 Grounded Conductor 11 Circuit #4 Grounded Conductor 30 Circuit #10 Grounding Conductor 12 Circuit #4 Grounding Conductor 31 Circuit #11 Ungrounded Conductor 13 Circuit #5 Ungrounded Conductor 32 Circuit #11 Grounded Conductor 14 Circuit #5 Grounded Conductor 33 Circuit #11 Grounding Conductor 15 Circuit #5 Grounding Conductor 34 Circuit #12 Ungrounded Conductor 16 Circuit #6 Ungrounded Conductor 35 Circuit #12 Grounded Conductor 17 Circuit #6 Grounded Conductor 36 Circuit #12 Grounding Conductor 18 Circuit #6 Grounding Conductor 37 Not Used 19 Circuit #7 Ungrounded Conductor CTION CHART: I." ngrounded" conductors are also known as "hot" conductors. 2. "Grounded" conductors are also known a "neutral" conductors though they are not neceSSaI' iJy neutrals. 3. "Grounding" conductors are also know as "ground" or "safety ground" conductors. 4. Contact #3 shall be bonded (jumpered) to the sheU of the connector. 5. Contact #3 shall make-first and break-last via a longer male contact. Longer male contacts are recommended on other "grounding" conductors. 6. Each "grounding" contact shaU be connected to a cable conductor equal to the largest size in the cable. . Connector ampacity shaU be equal to or greater than that of the overcurrent protection device protecting it. 8. Cable ampacity shaU be per the National Electrical Code, especiaUy Articles 400 and 520. COMME TS: 1. Cables without Contact #3 bonded to the sheU of the connector are in use. SheU should be extra-hard anodized or otherwise made to be non-conductive. 2. Cables without "grounding" contacts aU of the first-make, last-break type are in use. AU circuits should be de-energized before connecting or disconnecting connectors of this type. 3. Cables ,vithout cable conductors terminated to aU "grounding" contacts are in use. Continuity of "grounding" conductor in each circuit of a break-out should be verified. 4. Since Contact #3 is the only contact required to be bonded to the connector sheU, Circuit #1 of a break-in should always be connected first, or the sheU should be extra-hard anodized or otherwise made to be non-conductive. TZ>&T WI I N T E R I 9 9 9 ;9