Insulated Electrical Spring Connector 312 Data Sheet Application: Regulatory Agencies: Use a 312 connector to electrically connect two or more wire U.L. Listed as a Pressure Cable Connector ends in a pigtail application and insulate the connection, or to Tested per UL Standard 486C insulate a single wire end. U.L. File No. E23438 Wire Range: AWG Range COPPER conductors only, No. 22 thru No. 10 solid or stranded wire. LISTED 540H Canadian Standards Association METRIC Range Standard NO. 22.2 2 2 NO. 188M1983 COPPER conductors only, 0.75 mm thru 4,0 mm rigid 3M File NO. LR15503 (solid or stranded) and flexible. (See wire matrix for specific wire combinations.) Construction: Spring Spring steel, Corrosion resistant coating IEC Publications Insulator Flame retardant nylon, ColorYellow 6851 and 68524 3M File NO. E95240 Weight: 0.004 lb. (1.8 gm) OPERATING TEMPERATURE: 105 C (221 F) VOLTAGE RATING: 600 volts maximum building wire Abbreviations: 1000 volts maximum in signs and lighting fixtures UL: Underwriters Laboratories (luminaries). AWG: American Wire Gauge Federal Specification WS610: CU: Copper sol.: solid, str.: stranded, mm: millimeters, 2 mm : square millimeters, Commercial Package Only C: degrees Celsius, F: degrees Fahrenheit, gm: gram, Type Class Kind Style lb.: pound 1 1 cu G Engineering Specification: Electrical Spring Connector (3M part No. 312) shall be capable of connecting wires within the range of No. 22 thru No. 10 solid or stranded copper conductors, in a pigtail application. The connector shall constructed of an active (live) spring and covered by a nylon insulator. The spring shall have a corrosion resistant coating. The connector shall be UL Listed as a pressure cable connector, and be CSA Certified. The connector shall be voltage rated 600 volts maximum, building wire, 1000 volts maximum, signs, fixtures and luminaries. The connector shall have a maximum operating temperature of 105 C.1 22 312 SOL 2 OR 3 STR 4 AWG Wire Combinations 5 LISTED 540H copper to copper coductors 1 20 2 SOL = 300 volts OR 3 STR = 600 volts 4 5 All 14 thru 10 AWG wire combination are 600 volt UL 1 18 SOL 2 Listed when using insulation OR 3 such as TW and THHN STR 4 5 UL Listed single wire terminanations: No. 8, 10, 12 and 14 1 16 2 STR 3 4 HOW TO READ THIS CHART 1 16 2 SOL 3 EXAMPLE 1: 4 2 No. 16 sol + 4 No. 16 sol (=6) may be 1 14 connected using a 312 connector 2 STR 3 4 EXAMPLE 2 1 3 No. 14 str + 1 No. 14 str (=4) 14 2 SOL 3 may be connected using a 4 312 connector 12 1 STR 2 12 1 SOL 2 10 1 STR 10 1 SOL 12345 12345 12345 1234 123 4 123 123 12 12 22 SOL 20 SOL 18 SOL 16 16 14 14 12 12 OR STR OR STR OR STR STR SOL STR SOL STR SOL Installation Instructions: 3. Turn connector onto wires in a clockwise direction until WARNING secure. 4. To remove, turn connector counter-clockwise. Turn power off before installing or removing terminal. All electrical work should be done according to Conductor Size Strip Length appropriate electrical codes. 22 16 AWG 5/8 1. Strip wire insulation to length specified in , according to 2 (0,75 1,5 mm ) (15,9 mm) size. 14 8 AWG 1/2 2. Flrmly grasp wires, making sure insulation ends are even 2 (2,5 4,0 mm ) (12,7 mm) and tightly bundled (wires may be twisted or untwisted). Slip connector over wire. 2