ORDER FORMAT TERMINAL FUNCTION ACTUATOR BODY
CODE CODE CODE CODE
C 3900 B A
C
6.3 x 0.8
S
Screw & clamp
T
Solder
10.5
10.5
10.5
Ø3.1
B
D
E
F
Metal toggle finish is nickel plate
17.5
25.4
38.1
E
17.5
metal
metal
metal
nylon
Switches with F toggles have
double pole bodies, regardless of circuit
Metal toggle switches
Ratings up to 20A,
125/277V ac
Single and double pole
Choice of circuits
including 3 position and
momentary
Sealed version supplied
complete with gaskets
Panel seal version to
IP67
3 Terminal Options
Guard option
Phone: 760-343-3650
Arcolectric E
mail: americas@elektron-technology.com
toggle
switches
34
TERMINAL ACTUATORFUNCTION
Single pole Double pole
123
123
456
3920 3970
ON - OFF - ON µ
3911 3961
ON - ON
(momentary 1 side)
3910 3960
ON - ON
3902 3952
ON - OFF
(momentary OFF)
3901 3951
ON - OFF
(momentary ON)
3900 3950
ON - OFF
3921 3971
ON - OFF - ON µ
(momentary 1 side)
3922 3972
ON - OFF - ON µ
(momentary 2 sides)
16(4)A 250Vac T85 (3900 & 3950)
10(4)A 250Vac T85 (All other circuits)
UL CSA* 20A 125/277Vac (ON-OFF Circuits)
UL CSA* 16A 125/277Vac (Other Circuits)
UL CSA* 7A 72Vdc, 14A 36Vdc
UL 250Vac 1hp, 125Vac 1/2hp
UL 65˚C, file E45221, CSA file LR10990
RoHS compliant
Approvals and ratings vary with function.
3mm contact gap except where marked µ.
Technical data on pages 4 & 5.
* CSA approval for A and B bodies only
RoHS
3900 Metal Toggle Switches 16A 250Vac - IP67 Sealed Versions
CAT 170 P34-38 0600-3900-1750_2_11-0328:CAT 170 P34-38 0600/3900/1750 23/5/11 08:55 Page 34
Switch Boot
(B Actuator only)
Rubber
-57T145
Switch Boot
(B & C Actuators)
Rubber
-57T145
Boots have internal brass or nylon nuts
Mounting nuts
Nickel plated brass are supplied
Hex Back nut
Knurled Ring nut
Panel thickness 4.0 with backnut
Plate
P236 plate SP or DP
A
Single pole
E
Panel sealed, single pole
B
Double pole
F and G
Panel sealed, double pole
F with barriers, G withoutbarriers
Phone: 760-343-3650
Arcolectric E
mail: americas@elektron-technology.com
Guard TG1-RED
Anti-rotation tab can be specified
for guard fitted in On or Off position
(Guard is suitable for On Off switches only)
0FF
0N
14.0
toggle
switches
35
Double Pole
(C terminals shown with barrier)
Thread: 15/32” x 32TPI
31.1
1
2
3
10.017.5
Keyway
*
Ø12.7 11.1
1.3
Thread: 15/32” x 32TPI
17.010.517.5
1
2
3
Keyway
*
31.0
21.5
Thread: 15/32” x 32TPI
31.1
1
2
3
10.017.5
Keyway
*
A Body
Ø12.7 11.1
1.3
BODY OPTIONS
29.5
14.0
Thread: 15/32” x 32TPI
17.010.517.5
1
2
3
Keyway
*
Single Pole
(C terminals shown)
DIMENSIONS (mm) * Indicates ON position (for ON - OFF switches)
Thread: 15/32” x 32TPI
17.010.517.5
1
2
3
Keyway
*
Thread: 15/32” x 32TPI
31.1
1
2
3
10.017.5
Keyway
*
Ø12.7
29.5
14.0
Thread: 15/32” x 32TPI
17.010.517.5
1
2
3
Keyway
*
E body (panel sealed)
B Body
F body (panel sealed)
31.0
21.5
Thread: 15/32” x 32TPI
31.1
1
2
3
10.017.5
Keyway
*
Ø12.7
Toggle switch - sealed version
BE and BF types
Diaphragm
(Internal seal)
Flat washer
(Panel seal)
‘O’ ring seals
(Toggle seal)
C3900BE --- C3920BA ---
C3950BF --- C3972BB ---
CAT 170 P34-38 0600-3900-1750_2_11-0328:CAT 170 P34-38 0600/3900/1750 23/5/11 08:55 Page 35