C3911BAAAA

Toggle Switches Well known for their quality and reliability, Bulgin’s toggle switches are cost effective solutions to many existing applications. These switches offer features at an attractive price point often well below that of the existing competition. Nylon and Metal switch variants Multiple Lever Options Ratings up to 20A, 250V ac - 277V ac IP67 panel seal versions, supplied complete with gaskets (3900 Series – All Variants) Single and double pole Choice of circuit options including 3 position and momentary Mounting hole: 12.7mm diameter. Sealing accessories available Quick Connect, Solder, Screw and PCB Termination Options 215 Switches 3900 Metal Toggle Switches 16A 250Vac - IP67 Sealed Versions Key Features Metal toggle switches Panel seal version to IP67 Ratings up to 20A, 277V ac 6.3mm terminals Guard option Single and double pole Choice of circuits including 3 position and momentary Sealed version supplied complete with gaskets Terminal C Function Single Pole 3900 ON - OFF Actuator Double Pole ON - OFF 3901 ON - OFF (momentary ON) T 3902 ON - OFF (momentary OFF) 3910 ON - ON 3911 S ON - ON (momentary 1 side) 3920 ON - OFF - ON μ Screw & Clamp N/A for assemblies with 3 terminals 3921 ON - OFF - ON μ (momentary 1 side) 3951 ON - OFF (momentary ON) A A 3960 ON - ON 3961 ON - ON (momentary 1 side) Neck Seal M539 Actuator is visible Single pole Metal Metal toggle finish is nickel plate B Cover M1080 E Panel sealed, single pole Panel Covers have internal nylon nuts 3952 ON - OFF (momentary OFF) Seal A Double pole, without barrier Covers have internal metal hex nuts D 25.4 Fixing nuts Nickel plated brass are supplied B Double pole, with barrier ON - OFF - ON μ 3971 M1080-2 Metal Metal toggle finish is nickel plate 3970 ON - OFF - ON μ (momentary 1 side) Options 10.0 3950 4.8 x 0.8 Body E Knurled Front nut Panel thickness 4.0 with backnut F Panel sealed, double pole, with terminal barrier Plate P236 Plate SP or DP Panel 3922 ON - OFF - ON μ (momentary 2 sides) 3972 38.1 ON - OFF - ON μ (momentary 2 sides) Seal Metal toggle finish is nickel plate F Switches with F toggles have double pole bodies, regardless of circuit G Panel sealed, double pole, without terminal barrier Panel 17.5 Seal Metal toggle finish is nickel plate Switches 216 Approvals and specifications UL/CSA Ratings 3901, 3902, 3920, 3921, 3922 16A, 277Vac 1 HP, 250Vac 7A, 72Vdc 14A, 36Vdc 3910, 3901, 3952, 3960, 3961, 3970, 3971, 3972 16A, 277Vac 1 HP, 250Vac 1/2 HP, 125Vac 7A, 72Vdc 14A, 36Vdc 3900, 3950 20A, 277Vac 1 HP, 250Vac 1/2 HP, 125Vac 7A, 72Vdc 14A, 36Vdc ENEC Ratings 3900, 3901, 3902, 3950, 3952, 3960, 3961 16(4)A 250Vac 3910, 3911, 3920, 3921, 3922, 3951, 3970, 3972 10 4)A 250Vac Approvals and ratings vary with function. 3mm contact gap except where marked μ. * CSA approval for A and B bodies only Dimensions mm) * Indicates ON position (for ON - OFF switches) Single pole Double pole Toggle Switch - sealed version (C terminals shown) (C terminals shown with barrier) BE and BF types Flat washer (Panel seal) Diaphragm (Internal seal) Guard TG1-RED Examples C3900BE - - - 217 Switches C3920BA - - - C3950BF - - - C3972BB - - - ‘O’ ring seals (Toggle seal) 1700 & 1750 Series Key Features Approvals and specifications Nylon toggle switches 16(4)A 250Vac T85 Ratings up to 20A, 250V ac UL 20A 250Vac Non Ind (Single pole) UL 16A 250Vac Non Ind (Double pole) UL CSA (2 pos types) 250Vac 1hp, 125Vac 1/2hp UL CSA (3 pos types) 250Vac 1/2hp, 125Vac 1/4hp CSA 16A 250Vac Non Ind UL 85°C, file E45221, CSA file LR10990 UL and CSA N/A on momentary types Single and double pole Wide choice of terminals Choice of circuit options including 3 position Selective “A, B, C” and “OFF, A, A+B” circuits at 5 amp also available. 3mm contact gap except where marked μ. Flat & round actuator options Terminal C Function Single Pole 1700 ON - OFF Actuator Double Pole H Body O Single pole 1750 Material - EPDM (R Actuator only) 1710 μ ON - ON 1760 μ O Double Pole ON - ON 1720 μ ON - OFF - ON Cover M531 Material - PVC (R Actuator only) Covers have internal nylon nuts 1770 μ Fixing nuts (Standard is M506 & T92) ON - OFF - ON Panel hole (all types) X Material - Nitrile (H & R Actuators) Actuator visible Cover M1080 R T Neck Seal M539 ON - OFF H K Options Panel thickness (Max) Both nuts - 3.5mm Less backnut - 6.5mm 1721 μ T5 Hex brass M506 Hex nylon T92 Knurled brass slotted ON - OFF - ON μ (momentary 1 side) M279 Knurled nylon 1722 ON - OFF - ON μ (momentary 2 sides) The switch is on between centre terminals (2 & 5) and the terminals over which the lever is positioned. Plate P236 Plate SP or DP Switches 218 Dimensions mm) * Indicates ON position (for ON - OFF switches) Single pole Double pole (C terminals shown) (C terminals shown) Examples C1700R - Without barrier Optional F00232PAAA plate SP or DP 219 Switches With barrier C1700H - - C1760R - - C1750H - -