S21A NKK Switches, S21A Datasheet

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S21A

Manufacturer Part Number
S21A
Description
SW TOGGLE DPST 15A SOLDER LUG
Manufacturer
NKK Switches
Series
Sr
Type
Toggler
Datasheets
1.AT537.pdf (5 pages)
2.S3A.pdf (3 pages)

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
Medium Capacity Standard Size Toggles
Electrical Capacity (Resistive & Inductive Load)
Other Ratings
Materials & Finishes
Environmental Data
Installation
Standards & Certifications
Soldering Time & Temperature:
Maximum Panel Thickness:
Operating Temp Range:
Insulation Resistance:
Stationary Contacts:
Movable Contactor:
Angle of Throw (α):
Contact Resistance:
Movable Contacts:
Dielectric Strength:
Mounting Torque:
Mechanical Life:
Electrical Life:
Power Level:
Case Cover:
Terminals:
Bushing:
Sealing:
Toggle:
Case:
CSA:
GENERAL SPECIFICATIONS FOR S1 ~ S29
UL:
Shown in the following tables
10 milliohms maximum
1,000 megohms minimum @ 500V DC
2,000V AC minimum for 1 minute minimum
30,000 operations minimum for S5AW, S8AW, S9AW, S25AW, S28AW, S29AW
50,000 operations minimum for all other models
25,000 operations minimum
Shown in tables on following pages
Brass with chrome plating
Brass with chrome plating
Phenolic resin
Steel with zinc plating
Copper with silver plating
Silver alloy capped on copper with silver plating
Silver alloy capped on copper with silver plating
Brass with tin plating
–30°C through +70°C (–22°F through +158°F) for Splashproof models;
–10°C through +70°C (+14°F through +158°F) for all other models
Splashproof & lever lock panel seal models meet IP67 standard
1.47Nm (13 lb
2.94Nm (26 lb
Shown beneath panel cutout in switch dimension drawings
Manual Soldering: See Profile A in Supplement section.
File No. E44145
UL or cULus recognition designated beside part numbers on following pages.
See Supplement section to find UL or cULus rating details.
Add “/U” to end of part number to order UL mark on switch.
Add “/CUL” to end of part number to order cULus mark on switch.
File No. 023535_0_000
CSA certification designated beside part numbers on following pages.
See Supplement section to find CSA rating details.
Add “/C” to end of part number to order CSA mark on switch.
•
•
in) for single nut on AW & AL models
in) for double nut on other models
www.nkk.com
Series S
A97
A

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S21A Summary of contents

Page 1

... Medium Capacity Standard Size Toggles GENERAL SPECIFICATIONS FOR S1 ~ S29 Electrical Capacity (Resistive & Inductive Load) Power Level: Other Ratings Contact Resistance: Insulation Resistance: Dielectric Strength: Mechanical Life: Electrical Life: Angle of Throw (α): Materials & Finishes Toggle: Bushing: Case: Case Cover: Movable Contactor: ...

Page 2

... CONNECTION (2.4) Dia Typ M12 P1 .094 (4.8) Typ α .189 (6.0) Dia .236 (5.7) .224 (17.5) (10.0) (25.7) .689 .394 1.012 S21A does not have terminals 2 & 5 www.nkk.com * Electrical Capacity Resistive Inductive 125V 125V 250V 30V PF 0.6 15A 6A 20A 8A 15A 6A 20A ...

Page 3

... Medium Capacity Standard Size Toggles SINGLE POLE WITH QUICK CONNECT Toggle Position/Connected Terminals Approvals Down Pole & Keyway Model Throw R S1F –– –– SPST ON 1-3 –– –– S2F SPDT ON 2-3 S3F –– –– SPDT ON 2-3 Throw & ...

Page 4

... DPDT INTERNAL CONNECTION (17.0) Dia .669 Flat α (5.7) Dia M12 P1 .224 (7.5) .295 (17.5) (12.5) (25.7) .689 .492 1.012 S21AW does not have terminals 2 & 5 www.nkk.com * Electrical Capacity Resistive 125V 250V 30V — 15A 6A 20A 2-1 15A 6A 20A 2-1 15A ...

Page 5

... Dia Typ .094 6 (4.8) Typ .189 5 4 (7.5) .295 (12.0) (5.7) .472 .224 (17.0) (25.7) (0.8) Typ .669 1.012 .031 S21AL does not have terminals 2 & 5 www.nkk.com Series S * Electrical Capacity Resistive Inductive Angle 125V of Throw 250V 30V PF 0.6 6A 20A 8A 6A ...

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