Toggle Switches I-Series The I-Series toggle switches are heavyduty, four pole switches with a slowmake, slow-break contact mechanism. These switches are available in a wide range of terminations, circuits and bushing/toggle configurations. Specifications •Certifications*: UL, CSA •Dielectric Strength: 1,000V (minimum) •Insulation Resistance: 100 Megohms (minimum) •Base Material: Phenolic •Actuator Material: Brass/Nickel Plate or Polycarbonate •Bushing Material: Brass/Nickel Plate * Due to ongoing technological advances, consult factory for certification specifics. .075[1.91] DIA .125[3.18] DIA Dimensional Specifications: in. [mm] 15/32-32UNS-2A THREAD .330[8.38] .187[4.74] KEYWAY .072[1.82] X .038[.965] DP .687[17.44] .055[1.40] DIA .437[11.09] .394[10.00] .250[6.35] .187[4.74] SOLDER LUG .250 TAB (Q.C.) .187 TAB (Q.C.) TERMINAL TYPE .465[11.81] #6-32NC-2 THREAD .187[4.75] 6.000[152.40] .141[3.58] .370[9.39] .803[20.40] .187[4.75] .500[12.70] .350[8.89] .286[7.26] SCREW (ASSEMBLED) .500[12.70] DIA .422[10.72] PRINTED CIRCUIT .376[9.55] WIRE LEAD .062[1.57] .500[12.70] DIA 1.308[33.22] 1.436[36.47] .038[9.65] MOUNTING HOLE I K SERIES RATING I 25 10A 250VAC 15A 125VAC 3/4HP 125-250VAC 1, 2 OR 3 PHASE FOUR POLE TOGGLE CIRCUIT1 K ON-NONE-OFF L ON-NONE-ON M ON-OFF-ON 25 1 WITH KEYWAY - .500[12.70] DIA .125[3.17] DIA WITH LOCKING RING 73 TERMINATION/FUNCTION SOLDER FUNCTION LUG ON-NONE-OFF 0 (ON)-NONE-OFF A ON-NONE-(OFF) L ON-NONE-ON 0 ON-NONE-(ON) A ON-OFF-ON 0 ON-OFF-(ON) A (ON)-OFF-(ON) L .250 TAB (QC) 1 B M 1 B 1 B M .187 TAB (QC) 3 D R 3 D 3 D R SCREW TERM. 4 E S 4 E 4 E S WIRE LEAD 5 F T 5 F 5 F T PC TERM. 6 G U 6 G 6 G U TOGGLE STYLE2 NOTES: Shading indicates standard configurations. For bushing accessories, see pages 69 and 70. 1 Consult factory for additional circuits. 2 NBL toggle uses black oxide plated metal bushing for standard construction. NWH toggle uses nickel plated metal bushing for standard construction. Momentary functions are available with only 63, 73 or 78 toggles. TOGGLE LENGTH BAT .406 .562 .687 1.00 1.25 NYLON .687 .687 BUSHING LENGTH .343 .465 .465 .343 .465 .465 .465 SUFFIX NO. 52 63 73 A2 B3 NBL3 NWH3 NEOPRENE SEAL 57 68 78 A7 B8 NBL8 NWH8 Carlingswitch,Inc. (860) 793-9281• Carlingswitch, LTD. Int + 44 1392-364422 • Carlingswitch Asia-Pacific, LTD. Int + 852-2737-2277 55