266 Switches

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: 12.2mm diameter.

Sealing accessories available

Quick Connect, Solder, Screw and PCB Termination Options

Switches 267

3900 Metal Toggle Switches 16A 250Vac - IP67 Sealed Versions

Key Features

Metal toggle switches Ratings up to 20A,277V ac

Single and double pole

Choice of circuitsincluding 3 position andmomentary

Sealed version suppliedcomplete with gaskets

Neck Seal M539Actuator is visible

Cover M1080

Covers have internal nylon nuts

M1080-2

Covers have internal metal hex nuts

Fixing nutsNickel plated brass are supplied

Knurled Front nutPanel thickness 4.0 with backnut

Plate P236Plate SP or DP

Single poleA

Panel sealed, single poleE

Double pole, without barrier

B

A

F

Panel sealed, double pole, without terminal barrierG

Single Pole Double Pole

3900ON - OFF

3950ON - OFF

3901ON - OFF(momentary ON)

3951ON - OFF(momentary ON)

3902ON - OFF(momentary OFF)

3952ON - OFF(momentary OFF)

3910ON - ON

3960ON - ON

3911ON - ON(momentary 1 side)

3961ON - ON(momentary 1 side)

3920ON - OFF - ON μ

3970ON - OFF - ON μ

3921ON - OFF - ON μ(momentary 1 side)

3971ON - OFF - ON μ(momentary 1 side)

3922ON - OFF - ON μ(momentary 2 sides)

3972ON - OFF - ON μ(momentary 2 sides)

A

Metal toggle finish is nickel plate

Metal

B

38.1

E

F

17.5

D

25.4

Metal toggle finish is nickel plate

Metal

10.0

Panel seal version to IP67

6.3mm terminals

Guard option

Terminal Actuator OptionsBodyFunction

C

6.3 x 0.8

S

Screw & Clamp

Switches with F toggles havedouble pole bodies, regardless of circuitMetal toggle finish is

nickel plate

Metal toggle finish is nickel plate

Panel

Seal

Panel

Seal

Panel

Seal

Double pole, with barrier

Panel sealed, double pole, with terminal barrier

T

Ø 3.1

Solder

268 Switches

C3900BE - - - C3972BB - - -C3950BF - - -C3920BA - - -

Examples

Approvals and specifications

UL/CSA Ratings 3901, 3902, 3920, 3921, 392216A, 277Vac 1 HP, 250Vac

7A, 72Vdc14A, 36Vdc

3910, 3901, 3952, 3960, 3961, 3970, 3971, 3972

16A, 277Vac 1 HP, 250Vac1/2 HP, 125Vac7A, 72Vdc14A, 36Vdc

DimensionsSingle pole Double pole Toggle Switch - sealed version

Guard TG1-RED

mm) * Indicates ON position (for ON - OFF switches)

(C terminals shown) (C terminals shown with barrier) BE and BF types

Flat washer(Panel seal)

Diaphragm(Internal seal)

‘O’ ring seals(Toggle seal)

3900, 395020A, 277Vac 1 HP, 250Vac1/2 HP, 125Vac7A, 72Vdc14A, 36Vdc

ENEC Ratings3900, 3901, 3902, 3950, 3952, 3960, 396116(4)A 250Vac

3910, 3911, 3920, 3921, 3922, 3951, 3970, 397210 4)A 250Vac

Approvals and ratings vary with function.3mm contact gap except where marked μ.

* CSA approval for A and B bodies only

Switches 269

1700 & 1750 Series

Key Features

Nylon toggle switches Ratings up to 20A,250V ac

Single and doublepole

Wide choice ofterminals

Choice of circuitoptions including 3position

Flat & round actuatoroptions

Approvals and specifications

16(4)A 250Vac T85

UL 20A 250Vac Non Ind (Single pole)UL 16A 250Vac Non Ind (Double pole)UL CSA (2 pos types) 250Vac 1hp, 125Vac 1/2hpUL CSA (3 pos types) 250Vac 1/2hp, 125Vac 1/4hpCSA 16A 250Vac Non IndUL 85°C, file E45221, CSA file LR10990UL and CSA N/A on momentary types

Selective “A, B, C” and “OFF, A, A+B” circuits at 5 amp also available.3mm contact gap except where marked μ.

Neck Seal M539

Material - Nitrile(H & R Actuators)Actuator visible

Cover M1080

Material - EPDM(R Actuator only)

Cover M531

Material - PVC(R Actuator only)

Covers have internal nylon nuts

T

X

R

The switch is on between centreterminals (2 &

5) andthe terminals over which the lever is positioned.

H

Fixing nuts (Standard is M506 & T92)

T5 Hex brassM506 Hex nylon

T92 Knurled brass -slotted

M279 Knurled nylon

Plate P236Plate SP or DP

Terminal Actuator OptionsBodyFunction

C

H

K

Single Pole Double Pole

1721 μON - OFF - ON μ(momentary 1 side)

1722ON - OFF - ON μ(momentary 2 sides)

1700ON - OFF

1750ON - OFF

1710 μON - ON

1760 μON - ON

1720 μON - OFF - ON

1770 μON - OFF - ON

Single poleO

Double PoleO

Panel thickness (Max)Both nuts - 3.5mmLess backnut - 6.5mm

Panel hole (all types)

270 Switches

DimensionsSingle pole Double pole

C1700R - - C1750H - -C1760R - -C1700H - -

Examplesmm) * Indicates ON position (for ON - OFF switches)

(C terminals shown)

OptionalF00232PAAAplate SP or DP

(C terminals shown)

Without barrier With barrier