S21A NKK Switches, S21A Datasheet - Page 3

• Manufacturer Part Number: S21A
• Description: SW TOGGLE DPST 15A SOLDER LUG
• Manufacturer: NKK Switches
• Series: Sr
• Type: Toggler

Specifications of S21A

• Circuit: DPST
• Switch Function: On-Off
• Contact Rating @ Voltage: 15A @ 125VAC
• Actuator Type: Standard Round
• Actuator Length: 17.50mm
• Illumination: Non-Illuminated
• Mounting Type: Panel Mount
• Termination Style: Solder Lug
• Bushing Thread: M12
• Body Style: Standard
• Contact Form: DPST
• Current, Rating: 15 A
• Dielectric Strength: 2000 VAC
• Mounting Hole Size: 0.453 "
• Number Of Poles: 2
• Number Of Positions: 2
• Operation: On-None-Off
• Special Features: Medium Capacity
• Termination: Solder
• Voltage, Rating: 250/30 VAC/VDC
• Pole Throw Configuration: DPST
• Switch Configuration: ON None OFF
• Actuator Style: Toggle
• Current Rating (max): 15A
• Ac Voltage Rating (max): 250VVAC
• Dc Voltage Rating (max): 30VVDC
• Contact Material: Silver Alloy/Copper
• Contact Plating: Silver
• Mechanical Life: 50000
• Product Height (mm): 53.2mm
• Product Depth (mm): 18.6mm
• Operating Temperature Min Deg. C: -10C
• Product Length (mm): 31.2mm
• Operating Temperature Max Deg. C: 70C
• Mounting Style: Panel Mount with Threads
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: S21A-RO; S21A-RO

NKK Switches
Model
Model
Throw &
Schematics:
• Standard Hardware: AT504M Knurled Nut, AT508 Lockwasher, AT527M Backup Hex Nut. See Accessories & Hardware section.
Throw &
Schematics:
• Standard Hardware: AT504M Knurled Nut, AT508 Lockwasher, AT527M Backup Hex Nut. See Accessories & Hardware section.
S21A
S6A
S7A
S1A
S2A
S3A
S6A
S2A
—
R
—
R
R
R
Approvals
Approvals
DPST
—
R
R
R
R
SPST
1
Keyway
Keyway
1
Pole &
Pole &
Throw
Throw
DPDT
DPDT
SPDT
SPDT
DPST
SPST
3
(18.6)
.732
(18.0)
.709
4
3
ON
ON
ON
ON
ON
ON
INTERNAL
CONNECTION
Keyway
Down
Toggle Position/Connected Terminals
Toggle Position/Connected Terminals
Keyway
DOUBLE POLE WITH SOLDER LUG
Down
SINGLE POLE WITH SOLDER LUG
6
Medium Capacity Standard Size Toggles
1-3 4-6
2-3 5-6
2-3 5-6
INTERNAL
CONNECTION
.236
.236
1-3
2-3
2-3
(6.0) Dia
(6.0) Dia
25°
α
(17.5)
.689
(17.5)
.689
NONE
NONE
Center
NONE
NONE
Center
OFF
OFF
M12 P1
M12 P1
SPDT
DPDT
(10.0)
.394
(10.0)
.394
OFF
ON
ON
3
3
OFF
ON
ON
Up
(25.7)
1.012
(23.7)
.933
Up
2-1 5-4
2-1 5-4
2 (COM)
2
—
(COM)
1
1
2-1
2-1
—
.224
(5.7)
.224
(5.7)
S21A does not have terminals 2 & 5
.094
6
(2.4) Dia Typ
.094
(2.4) Dia Typ
(4.8) Typ
.189
(0.8) Typ
.031
(4.8) Typ
.189
5
S1A does not have terminal 2
125V
125V
15A
15A
15A
15A
20A
20A
AC
AC
4
Resistive
Resistive
Electrical Capacity
Electrical Capacity
250V
250V
15A
10A
10A
6
5
4
6A
6A
6A
AC
AC
3
2
1
Note: Terminal numbers are
Note: Terminal numbers are
(0.8) Typ
.031
2
3
1
20A
20A
20A
15A
20A
20A
30V
30V
actually on the switch
actually on the switch
DC
DC
(30.0)
(31.2)
1.228
1.181
Series S
Inductive
Inductive
AC 125V
AC 125V
PF 0.6
PF 0.6
8A
8A
8A
8A
8A
8A
Panel Thickness:
Panel Thickness:
.158” (4.0mm)
.158” (4.0mm)
Maximum
Maximum
.060
.060
(1.5)
(1.5)
of Throw
of Throw
Angle
Angle
25°
25°
25°
(12.5) Dia
.492
21°
21°
28°
(12.5) Dia
.492
(11.5)
.453
α =
(11.5)
.453