Medium/High Capacity Standard Size Toggles Series S
DOUBLE POLE WITH SOLDER LUG
Toggle Position/Connected Terminals
Electrical Capacity
(
) = Momentary
Motor
Load
AC
125V
Down
Center
Up
Resistive
Inductive
α =
Keyway
Pole &
Approvals Throw
Angle
PF 0.75 - 0.8
AC 125V AC 250V
AC
AC
Model
S421
S422
S423
S425
S428
S429
of Throw
125V 250V
—
—
—
—
—
—
—
—
—
—
—
—
DPST
DPDT
DPDT
DPDT
DPDT
DPDT
ON
ON
ON
ON
(ON)
ON
1-3 4-6
2-3 5-6
2-3 5-6
2-3 5-6
2-3 5-6
2-3 5-6
NONE
NONE
OFF
OFF
—
25A
25A
25A
15A
15A
15A
25A
25A
25A
15A
15A
15A
25A
25A
25A
15A
15A
15A
25A
25A
25A
15A
15A
15A
750W
750W
750W
400W
400W
400W
24°
24°
28°
24°
24°
24°
ON
ON
2-1 5-4
2-1 5-4
2-1 5-4
2-1 5-4
2-1 5-4
NONE
OFF
(ON)
(ON)
(ON)
OFF
2
(COM)
5
Note: Terminal numbers
are on the switch
Throw &
Schematics:
DPST
DPDT
INTERNAL
CONNECTION
1
3
4
6
3
1
6
4
• Standard Hardware: AT503M Face Hex Nut, AT506 Locking Ring, AT508 Lockwasher, AT527M Backup Hex Nut. See Accessories & Hardware section.
(2.4) Dia Typ
.094
M12 P1
Keyway
3
(12.5) Dia
.492
6
(4.8) Typ
.189
(33.2)
1.307
α
(9.0)
.354
5
4
2
1
(3.0) Dia
.118
(6.1) Dia
.240
(5.7)
.224
Maximum
Panel Thickness:
.185” (4.7mm)
(19.0)
.748
(17.5)
.689
(12.0)
.472
(25.1)
.988
(0.8) Typ
.031
S421 does not have terminals 2 & 5
S422
DOUBLE POLE WITH SCREW LUG
Toggle Position/Connected Terminals
Electrical Capacity
(
) = Momentary
Motor
Down
Center
Up
Resistive Inductive
Load
α =
Angle
Keyway
Pole &
PF 0.75 - 0.8
AC
AC
AC
125V
Model
Approvals Throw
125V 250V
of Throw
AC 125V AC 250V
S421T
S422T
S423T
S425T
S428T
S429T
—
—
—
—
—
—
—
—
—
—
—
—
DPST
DPDT
DPDT
DPDT
DPDT
DPDT
ON
ON
ON
ON
(ON)
ON
1-3 4-6
2-3 5-6
2-3 5-6
2-3 5-6
2-3 5-6
2-3 5-6
NONE
NONE
OFF
OFF
—
20A
20A
20A
15A
15A
15A
20A
20A
20A
15A
15A
15A
20A
20A
20A
15A
15A
15A
20A
20A
20A
15A
15A
15A
750W
750W
750W
400W
400W
400W
24°
24°
28°
24°
24°
24°
ON
ON
2-1 5-4
2-1 5-4
2-1 5-4
2-1 5-4
2-1 5-4
NONE
OFF
(ON)
(ON)
(ON)
OFF
2
(COM)
5
Throw &
Schematics:
INTERNAL
CONNECTION
DPST
DPDT
Note: Terminal numbers
are on the switch
1
3
4
6
3
1
6
4
• Standard Hardware: AT503M Face Hex Nut, AT506 Locking Ring, AT508 Lockwasher, AT527M Backup Hex Nut. See Accessories & Hardware section.
Keyway
M4 X 5
M12 P1
6
(12.5) Dia
.492
3
5
4
(33.2)
1.307
α
(9.0)
.354
2
(3.0) Dia
.118
1
(6.1) Dia
.240
(11.0)
.433
Maximum
Panel Thickness:
.185” (4.7mm)
(17.5)
.689
(12.0)
.472
(31.1)
1.224
(19.0)
.748
S423T
S421T does not have terminals 2 & 5
NKK Switches • email: sales@nkkswitches.com • Phone (480) 991-0942 • Fax (480) 998-1435 • www.nkkswitches.com
05-08
NKK [ NIHON KAIHEIKI INDUSTRY CO. LTD. ]
