VEHICLE IGNITIONJUNCTIONPROTECTIONBLOCKS CENTER BussmannBussmann STUD TYPE JUNCTION BLOCKS SPECIFICATIONS Applications: Heavy-duty ground or power connection points in AC or DC circuits. Feed- thru or stand alone mount options available for transformers, communication and computer power sections along with various vehicle elec- trical systems. Mounting Torque Rating: 48in-lb (5.4Nm) max. (Dims. shown are for reference only. Consult factory for latest prints) FEATURES DIMENSIONS Modular design offers design and manufactur- 1.87 ing flexibility. (47.6) F 1.12 .75 .75 (28.6) (19.1) (19.1) H Suggested Max. Termination Ratings: J M (thread size) Thread/Stud Size Amperages CB KA KA KA 10 50 amps 1/4 & M6 100 amps 5/16 200 amps G D E L(2 MTG. HOLES) L(2 MTG. HOLES) 3/8 250 amps L (4 MTG. HOLES) 1/2 400 amps Fig. 1 Fig. 2 Fig. 3 Part Fig. A B C D E F G H J K L M Max. Torque (in-lb) Material Color C1925 1 2.75 1.5 1.25 1.25 1.12 .37 1.12 .19 .19 2.0 .22 dia. w/.44 dia. 1/2-13 300 Thermoplastic / Red * (69.8) (38.1) (31.7) (31.7) (28.6) (9.5) (28.6) (4.8) (4.8) (50.8) Cbore x .16 deep Zinc plated Brass C1925B* 1 2.75 1.5 1.25 1.25 1.12 .37 1.12 .19 .19 2.0 .22 dia. w/.44 dia. 1/2-13 300 Thermoplastic / Black (69.8) (38.1) (31.7) (31.7) (28.6) (9.5) (28.6) (4.8) (4.8) (50.8) Cbore x .16 deep Zinc plated Brass C1925-1* 1 2.75 1.5 1.25 1.25 1.12 .37 1.12 .19 .19 2.0 .22 dia. w/.44 dia. 1/2-13 300 Thermoplastic / Red (69.8) (38.1) (31.7) (31.7) (28.6) (9.5) (28.6) (4.8) (4.8) (50.8) Cbore x .16 deep Tin plated Brass C1925-1B* 1 2.75 1.5 1.25 1.25 1.12 .37 1.12 .19 .19 2.0 .22 dia. w/.44 dia. 1/2-13 300 Thermoplastic / Black (69.8) (38.1) (31.7) (31.7) (28.6) (9.5) (28.6) (4.8) (4.8) (50.8) Cbore x .16 deep Tin plated Brass C1925-2* 1 2.75 1.5 1.25 1.25 1.12 .37 1.12 .19 .19 2.0 .22 dia. w/.44 dia. 3/8-16 150 Thermoplastic / Red (69.8) (38.1) (31.7) (31.7) (28.6) (9.5) (28.6) (4.8) (4.8) (50.8) Cbore x .16 deep Tin plated Brass C1925-2B* 1 2.75 1.5 1.25 1.25 1.12 .37 1.12 .19 .19 2.0 .22 dia. w/.44 dia. 3/8-16 150 Thermoplastic / Black (69.8) (38.1) (31.7) (31.7) (28.6) (9.5) (28.6) (4.8) (4.8) (50.8) Cbore x .16 deep Tin plated Brass C1933 1 2.75 1.44 1.25 1.5 1.12 .37 None .19 None 2.0 .22 dia. 1/2-13 300 Thermoplastic / Black (69.8) (36.6) (31.7) (38.1) (28.6) (9.5) (4.8) (50.8) Zinc plated Brass C1933-1 1 2.75 1.44 1.25 1.5 1.12 .37 None .19 None 2.0 .22 dia. 5/16-18 75 Thermoplastic / Black (69.8) (36.3) (31.7) (38.1) (28.6) (9.5) (4.8) (50.8) Zinc plated Brass C1938 2 2.06 .94 .69 .87 .69 .31 .94 .06 .06 1.31 .22 dia. w/.41 dia. 3/8-16 150 Thermoplastic / Black * (52.4) (23.8) (17.5) (22.2) (17.5) (7.9) (23.8) (1.6) (1.6) (33.3) Cbore x 14 deep Zinc plated Brass C1938R* 2 2.06 .94 .69 .87 .69 .31 .94 .06 .06 1.31 .22 dia. w/.41 dia. 3/8-16 150 Thermoplastic / Red (52.4) (23.8) (17.5) (22.2) (17.5) (7.9) (23.8) (1.6) (1.6) (33.3) Cbore x 14 deep Zinc plated Brass C1938-1* 2 2.06 .94 .69 .87 .69 .31 .94 .06 .06 1.31 .22 dia. w/.41 dia. 5/16-18 75 Thermoplastic / Black (52.4) (23.8) (17.5) (22.2) (17.5) (7.9) (23.8) (1.6) (1.6) (33.3) Cbore x 14 deep Tin plated Brass C1938-1R* 2 2.06 .94 .69 .87 .69 .31 .94 .06 .06 1.31 .22 dia. w/.41 dia. 5/16-18 75 Thermoplastic / Red (52.4) (23.8) (17.5) (22.2) (17.5) (7.9) (23.8) (1.6) (1.6) (33.3) Cbore x 14 deep Tin plated Brass C2791 3 2.06 .69 .44 .62 .69 .31 .69 .06 .06 1.31 .22 dia. w/.41 dia. 1/4-20 30 Thermoplastic / Black * (52.4) (17.5) (11.2) (15.9) (17.5) (7.9) (17.5) (1.6) (1.6) (33.3) Cbore x .14 deep Zinc plated Brass C2791-R 3 2.06 .69 .44 .62 .69 .31 .69 .06 .06 1.31 .22 dia. w/.41 dia. 1/4-20 30 Thermoplastic / Red * (52.4) (17.5) (11.2) (15.9) (17.5) (7.9) (17.5) (1.6) (1.6) (33.3) Cbore x .14 deep Zinc plated Brass C2909 3 2.06 .69 .44 .62 1.0 .31 .69 .06 .06 1.31 .22 dia. w/.41 dia. 10-32 24 Thermoplastic / Black * (52.4) (17.5) (11.2) (15.9) (25.4) (7.9) (17.5) (1.6) (1.6) (33.3) Cbore x 14 deep Zinc plated Brass C2909-1 3 2.06 .69 .44 .62 1.0 .31 .69 .06 .06 1.31 .22 dia. w/.41 dia. 1/4-20 30 Thermoplastic / Black * (52.4) (17.5) (11.2) (15.9) (25.4) (7.9) (17.5) (1.6) (1.6) (33.3) Cbore x 14 deep Zinc plated Brass C4044 2 2.06 .87 .62 .62 1.12 .31 .94 .06 .06 1.31 .22 dia. w/.41 dia. 3/8-16 150 Thermoplastic / Black * (52.4) (22.2) (15.9) (15.9) (28.6) (7.9) (23.8) (1.6) (1.6) (33.3) Cbore x .14 deep Zinc plated Brass C4044-1* 2 2.06 .87 .62 .62 1.12 .31 .94 .06 .06 1.31 .22 dia. w/.41 dia. 3/8-16 150 Thermoplastic / Black (52.4) (22.2) (15.9) (15.9) (15.9) (7.9) (23.8) (1.6) (1.6) (33.3) Cbore x .14 deep Tin plated Brass C4044-1R* 2 2.06 .87 .62 .62 1.12 .31 .94 .06 .06 1.31 .22 dia. w/.41 dia. 3/8-16 150 Thermoplastic / Red (52.4) (22.2) (15.9) (15.9) (15.9) (7.9) (23.8) (1.6) (1.6) (33.3) Cbore x .14 deep Tin plated Brass C5898 2 2.06 .94 .69 .87 .69 .31 .94 .06 .06 1.31 .22 dia. w/.41 dia. 3/8-16 150 Thermoplastic / Red * (52.4) (23.8) (17.5) (22.2) (17.5) (7.9) (23.8) (1.6) (1.6) (33.3) Cbore x .14 deep Zinc plated Brass C6344-2 2 2.06 .87 .62 .62 1.12 .31 None .06 None 1.31 .22 dia. w/.41 dia. 1/2-20 150 Thermoplastic / Black (52.4) (22.2) (15.9) (15.9) (15.9) (7.9) (1.6) (33.3) Cbore x .14 deep Zinc plated Steel C7018 3 2.06 .69 .44 .47 .69 .31 .53 .06 .06 1.31 .22 dia. w/.41 dia. M6 55 Thermoplastic / Black * (52.4) (17.5) (11.2) (11.9) (17.5) (7.9) (13.5) (1.6) (1.6) (33.3) Cbore x 14 deep Zinc plated Steel C7020* 2 2.06 .94 .69 .88 .69 .31 1.25 .06 .06 1.31 .22 dia. w/.41 dia. 3/8-16 150 Thermoplastic / Red (52.4) (23.8) (17.5) (22.2) (17.5) (8.0) (31.8) (1.6) (1.6) (33.3) Cbore x 14 deep Zinc plated Brass JB3816-2 2 2.12 .98 .62 .87 .69 .31 None .06 None 1.37 .22 dia. w/.37 dia. 3/8-16 150 Thermoplastic / Black (54.0) (24.9) (15.9) (22.2) (17.5) (7.9) (1.6) (34.9) Cbore x .14 deep Zinc plated Sleel JB3816-3 2 2.12 .98 .62 .87 .69 .31 None .06 None 1.37 .22 dia. w/.37 dia. 3/8-16 150 Thermoplastic / Red (54.0) (24.9) (15.9) (22.2) (17.5) (7.9) (1.6) (34.9) Cbore x .14 deep Zinc plated Sleel Feed-thru Options Nuts & washers consult factory. * Cooper Bussmann Transportation Products Phone: 1-888-867-8194 Website: JUNCTION BLOCKS Bussmann STUD TYPE JUNCTION BLOCKS (Non Feed-Thru) Series C4559 & C6083 SPECIFICATIONS Rating: 30A, 600V Temperature Rating: 250F (120C) Materials: Black thermoplastic with zinc-plated steel studs. Termination: 10-24 threaded studs on .750 centers. Studs feature a dog point to guide nut onto thread. Torque Rating: 25 in-lb (2.8Nm) max. Mounting Torque Rating: 24in-lb (2.7Nm) max. OPTIONS Positions: 2-16 positions available. FEATURES Numbers and arrows molded on top of barriers indicate terminals. Compliances: UL/CSA CE Certified84 Part No. A B C Dimensions (Dims. shown are for reference only. (21.34) C4559-2 3.00 (76.2) 2.25 (57.1) 0.75 (19.0) Consult factory for latest prints) C4559-3 3.75 (95.2) 3.00 (76.2) 1.50 (38.1) 1.05 (26.67) C4559-4 4.50 (114.3) 3.75 (95.2) 2.25 (57.1) A C4559-5 5.25 (133.3) 4.50 (114.3) 3.00 (76.2) .75 1.12 C (19.05) (28.45) C4559-6 6.00 (152.4) 5.25 (133.3) 3.75 (95.2) C4559 .31 (7.87) C4559-7 6.75 (171.4) 6.00 (152.4) 4.50 (114.3) Mtg. holes 9/32 x 3/8 slot C4559-8 7.50 (190.5) 6.75 (171.4) 5.25 (133.3) .375 .84 C4559-9 8.25 (209.5) 7.50 (190.5) 6.00 (152.4) .75 (9.53) 10-32 zinc plated .375 (19.05) (21.34) C4559-10 9.00 (228.6) 8.25 (209.5) 6.75 (171.4) steel studs (9.53) B C4559-11 9.75 (247.6) 9.00 (228.6) 7.50 (190.5) 1.09 C4559-12 10.50 (266.7) 9.75 (247.6) 8.25 (209.5) (27.69) 0ther series available with .750 centers: C4559-13 11.25 (285.7) 10.50 (266.7) 9.00 (288.6) C4559-14 12.00 (308.4) 11.25 (285.7) 9.75 (247.6) C6083 .31 C4559-15 12.75 (323.8) 12.00 (308.4) 10.50 (266.7) (7.87) (A,B,C Dimensions are the same as C4559) C4559-16 13.50 (342.9) 12.75 (323.8) 11.25 (285.7) Series C5237 & JB1032 SPECIFICATIONS Rating: UL: 30A, 300V CSA: 30A, 600V. Temperature Rating: 250F (120C) Materials: Black thermoplastic with brass studs. Termination: 10-32 threaded studs on .625 centers. Studs feature a dog point to guide nut onto thread. Torque Rating: 25 in-lb (2.8Nm) max. Mounting Torque Rating: 24in-lb (2.7Nm) max. OPTIONS Positions: 1-15 positions available. FEATURES Numbers and arrows molded on top of barriers indicate terminals. Compliances: UL/CSA CE Certified. Part No. A B C Dimensions .81 (Dims. shown are for reference only. C5237-1 2.00 (50.8) 1.25 (31.7) Consult factory for latest prints) C5237-2 2.62 (66.7) 1.87 (47.5) .625(15.9) 1.16 A C5237-3 3.25 (82.5) 2.50 (63.4) 1.25 (31.7) C5237-4 3.87 (98.4) 3.12 (79.4) 1.87 (47.5) 1.0 C C5237 C5237-5 4.50 (114.3) 3.75 (95.2) 2.50 (63.4) .31 Mtg. holes 9/32 X3/8 slot C5237-6 5.12 (130.8) 4.37 (111.1) 3.12 (79.4) .75 .5 C5237-7 5.75 (146.0) 5.00 (127.0) 3.75 (95.2) .375 C5237-8 6.37 (161.9) 5.62 (142.9) 4.37 (111.1) .625 .375 1.16 C5237-9 7.00 (177.8) 6.25 (158.7) 5.00 (127.0) B C5237-10 7.62 (193.7) 6.87 (174.6) 5.62 (142.9) C5237-11 8.25 (209.5) 7.50 (190.5) 6.25 (158.7) .31 C5237-12 8.87 (225.4) 8.12 (206.4) 6.87 (174.6) JB1032-120-XX C5237-13 9.50 (241.3) 8.75 (222.2) 7.50 (190.5) (No bosses between studs) C5237-14 10.12 (257.2) 9.37 (238.1) 8.12 (206.4) (A,B,C Dimensions ars the same as C5237) C5237-15 10.75 (273.0) 10.00 (254.0) 8.75 (222.2) Cooper Bussmann Transportation Products Phone: 1-888-867-8194 Website: