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
242 Switches
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 circuits
including 3 position and
momentary
Sealed version supplied
complete with gaskets
Panel seal version to IP67
6.3mm terminals
Guard option
Terminal
Function
Actuator
Body
Options
C
Single Pole
Double Pole
A
10.0
Metal
Metal toggle finish is
nickel plate
A
Single pole
Neck Seal M539
Actuator is visible
3900
ON - OFF
4.8 x 0.8
3950
ON - OFF
3901
T
3902
3910
ON - ON
ON - OFF
(momentary ON)
3951
3952
3960
ON - ON
Cover M1080
ON - OFF
(momentary ON)
B
E
Panel sealed, single pole
Panel
Covers have internal nylon nuts
Seal
ON - OFF
(momentary OFF)
ON - OFF
(momentary OFF)
M1080-2
Metal
Metal toggle finish is
nickel plate
A
Double pole, without barrier
3911
S
3920
Screw & Clamp
N/A for assemblies
with 3 terminals
ON - ON
(momentary 1 side)
3961
3970
3971
3972
D
25.4
Covers have internal metal hex nuts
Fixing nuts
Nickel plated brass are supplied
ON - ON
(momentary 1 side)
B
Double pole, with barrier
ON - OFF - ON μ
ON - OFF - ON μ
ON - OFF - ON μ
(momentary 1 side)
3921
3922
ON - OFF - ON μ
(momentary 1 side)
E
38.1
Knurled Front nut
Panel thickness 4.0 with backnut
F
Panel sealed, double pole,
with terminal barrier
Panel
Plate P236
Plate SP or DP
ON - OFF - ON μ
(momentary 2 sides)
ON - OFF - ON μ
(momentary 2 sides)
Metal toggle finish is
nickel plate
Seal
Switches with F toggles have
double pole bodies, regardless of circuit
F
17.5
G
Panel sealed, double pole,
without terminal barrier
Panel
Seal
Metal toggle finish is
nickel plate
Switches 243
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
Single pole
(C terminals shown)
mm) * Indicates ON position (for ON - OFF switches)
Double pole
(C terminals shown with barrier)
Toggle Switch - sealed version
BE and BF types
Flat washer
(Panel seal)
Diaphragm
(Internal seal)
‘O’ ring seals
(Toggle seal)
Guard TG1-RED
Examples
C3900BE - - -
C3920BA - - -
C3950BF - - -
C3972BB - - -
244 Switches
1700 & 1750 Series
Key Features
Nylon toggle switches
Ratings up to 20A,
250V ac
Single and double
pole
Wide choice of
terminals
Choice of circuit
options including 3
position
Flat & round actuator
options
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 1/2hp
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
Selective “A, B, C” and “OFF, A, A+B” circuits at 5
amp also available.
3mm contact gap except where marked μ.
Terminal
Function
Actuator
Body
Options
C
Single Pole
Double Pole
H
O
Single pole
Neck Seal M539
Material - Nitrile
(H & R Actuators)
Actuator visible
1700
ON - OFF
1750
ON - OFF
H
Cover M1080
Material - EPDM
(R Actuator only)
K
1710 μ
ON - ON
1760 μ
ON - ON
O
Double Pole
R
Cover M531
Material - PVC
(R Actuator only)
Covers have internal nylon
nuts
Fixing nuts
(Standard is M506 & T92)
T5 Hex brass
M506 Hex nylon
T
1720 μ
ON - OFF - ON
1770 μ
ON - OFF - ON
Panel hole (all types)
Panel thickness (Max)
Both nuts - 3.5mm
Less backnut - 6.5mm
X
ON - OFF - ON μ
(momentary 1 side)
M279 Knurled nylon
The switch is on
between centre
terminals (2 &
5) and
the terminals
over which
the lever is
positioned.
1721 μ
T92 Knurled brass -
slotted
ON - OFF - ON μ
(momentary 2 sides)
1722
Plate P236
Plate SP or DP
Switches 245
Dimensions
Single pole
(C terminals shown)
mm) * Indicates ON position (for ON - OFF switches)
Double pole
(C terminals shown)
Examples
C1700R - -
Without barrier
With barrier
C1700H - -
C1760R - -
C1750H - -
Optional
F00232PAAA
plate SP or DP
246 Switches
模拟电子
