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S421T Datasheet(PDF) 5 Page - Nihon Kaiheiki Industry Co. Ltd.

Part # S421T
Description  Medium/High Capacity Standard Size Toggles
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Manufacturer  NKK [Nihon Kaiheiki Industry Co. Ltd.]
Direct Link  http://www.nkkswitches.com
Logo NKK - Nihon Kaiheiki Industry Co. Ltd.

S421T Datasheet(HTML) 5 Page - Nihon Kaiheiki Industry Co. Ltd.

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NKK Switches • email: sales@nkkswitches.com • Phone (480) 991-0942 • Fax (480) 998-1435 • www.nkkswitches.com
05-08
Medium/High Capacity Standard Size Toggles
Series S
GENERAL SPECIFICATIONS FOR S31 ~ S49
Electrical Capacity (Resistive & Inductive Load)
Power Level:
Shown in the following tables
Other Ratings
Contact Resistance:
10 milliohms maximum
Insulation Resistance:
1,000 megohms minimum @ 500V DC
Dielectric Strength:
2,000V AC minimum for 1 minute minimum
Mechanical Life:
50,000 operations minimum
Electrical Life:
25,000 operations minimum
Angle of Throw (α):
Shown on following tables
Materials & Finishes
Toggle:
PBT resin for flatted lever; brass with chrome plating for all others
Bushing:
Brass with chrome plating
Case:
Phenolic resin
Case Cover:
Steel with chromate plating over zinc plating
Movable Contactor:
Copper with silver plating
Movable Contacts:
Silver alloy capped on copper with silver plating
Stationary Contacts:
Silver alloy capped on copper with silver plating
Terminals:
Brass with silver plating
Environmental Data
Operating Temp Range:
–10°C through +70°C (+14°F through +158°F)
Installation
Mounting Torque:
2.94Nm (26 lbin) for double nut
Maximum Panel Thickness:
Shown beneath panel cutout in switch dimension drawings
Soldering Time & Temperature:
Manual Soldering: See Profile A in Supplement section.
Standards & Certifications
UL Recognized:
Designated with UL recognized symbol beside part numbers on following pages.
See Supplement section to find UL rating details. UL File No. WOYR2.E44145
Add “/U” to end of part number to order UL mark on switch.
C-UL Recognized:
Designated with C-UL recognized symbol beside part numbers on following pages.
See Supplement section to find C-UL rating details. C-UL File No. WOYR8.E44145
Add “/C-UL” to end of part number to order C-UL mark on switch.
CSA Certified:
Designated with CSA certified symbol beside part numbers on following pages
See Supplement section to find CSA rating details. File No. 023535-0-000
Add “/C” to end of part number to order CSA mark on switch.


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