C3950BA Bulgin

10-Cat171 P034-038 Toggle Switches:Cat No.171 Oct 2011 16/11/11 10:13 Page 34 3900 Metal Toggle Switches 16A 250Vac - IP67 Sealed Versions Approvals and specifications Metal toggle switches 16(4)A 250Vac T85 (3900 & 3950) Ratings up to 20A, 10(4)A 250Vac T85 (All other circuits) 277V ac Single and double pole UL CSA* 20A 125/277Vac (ON-OFF Circuits) UL CSA* 16A 125/277Vac (Other Circuits) Choice of circuits UL CSA* 7A 72Vdc, 14A 36Vdc including 3 position and UL 250Vac 1hp, 125Vac 1/2hp momentary UL 65C, file E45221, CSA file LR10990 Sealed version supplied Approvals and ratings vary with function. complete with gaskets 3mm contact gap except where marked . Panel seal version to Technical data on pages 4 & 5. IP67 * CSA approval for A and B bodies only 6.3mm terminals Guard option C 3900 B E - - - TERMINAL FUNCTION ACTUATOR BODY OPTIONS TERMINAL FUNCTION ACTUATOR B C Single pole Double pole B 456 17.5 123 123 10.5 10.5 3900 3950 metal 6.3 x 0.8 ON - OFF 3901 3951 Metal toggle finish is nickel plate ON - OFF (momentary ON) 3902 3952 ON - OFF (momentary OFF) 3910 3960 ON - ON 3911 3961 ON - ON (momentary 1 side) 3920 3970 ON - OFF - ON 3921 3971 ON - OFF - ON (momentary 1 side) 3922 3972 Other terminals to special order ON - OFF - ON (momentary 2 sides) 34 tel: +44 (0)20 8979 3232 Arcolectric email: europe elektron-technology.com toggle switchestoggle switches 10-Cat171 P034-038 Toggle Switches:Cat No.171 Oct 2011 16/11/11 10:13 Page 35 Flat washer (Panel seal) O ring seals Diaphragm (Toggle seal) (Internal seal) C3900BE --- C3920BA --- Toggle switch - sealed version BE and BF types Guard R17-10 C3950BF --- C3972BB --- DIMENSIONS (mm) * Indicates ON position (for ON - OFF switches) BODY OPTIONS Single Pole A Neck Seal A0539MOAAA (C terminals shown) Single pole Actuator is visible Thread: 15/32 x 32TPI 1.3 Thread: 15/32 x 32TPI Keyway Keyway 12.7 11.1 * * Cover A1080MOAAA 17.5 10.5 17.0 17.5 10.5 17.0 A Body E Panel sealed, single pole Thread: 15/32 x 32TPI Thread: 15/32 x 32TPI Keyway Keyway 12.7 Covers have internal nylon nuts * * Fixing nuts 17.5 10.5 17.0 Nickel plated brass are supplied 17.5 10.5 17.0 E body (panel sealed) B Double pole Double Pole Thread: 15/32 x 32TPI 14.0 (C terminals shown with barrier) Keyway Thread: 15/32 x 32TPI 1.3 Hex Back nut Keyway D 12.7 11.1 * 31.0 * 15.0 17.5 10.0 31.1 F 21.5 17.5 10.0 31.1 Knurled Front nut B Body Panel sealed, double pole Panel thickness 4.0 with backnut Thread: 15/32 x 32TPI Thread: 15/32 x 32TPI Plate F00232PAAA Keyway Keyway Plate SP or DP 12.7 31.0 0FF * * 21.5 17.5 10.0 31.1 0N 17.5 10.0 31.1 F body (panel sealed) 35 tel: +44 (0)20 8979 3232 Arcolectric email: europe elektron-technology.com 29.5 14.0 29.5 14.0 2 2 3 2 1 3 1 3 2 1 3 1 2 3 2 1 3 1 3 2 1 3 2 1