S421 NKK Switches, S421 Datasheet - Page 6

• Manufacturer Part Number: S421
• Description: SW TOGGLE DPST 25A SOLDER LUG
• Manufacturer: NKK Switches
• Series: S400r

Specifications of S421

• Circuit: DPST
• Switch Function: On-Off
• Contact Rating @ Voltage: 25A @ 125VAC
• Actuator Type: Standard Round
• Actuator Length: 17.50mm
• Illumination: Non-Illuminated
• Mounting Type: Panel Mount
• Termination Style: Solder Lug
• Bushing Thread: M12
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: S421-RO

Medium/High 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:
Dielectric Strength:
Movable Contacts:
Mounting Torque:
Mechanical Life:
Electrical Life:
Power Level:
Case Cover:
Terminals:
Bushing:
Toggle:
Case:
CSA:
UL:
GENERAL SPECIFICATIONS FOR S31 ~ S49
Shown in the following tables
10 milliohms maximum
1,000 megohms minimum @ 500V DC
2,000V AC minimum for 1 minute minimum
50,000 operations minimum
25,000 operations minimum
Shown on following tables
PBT resin for flatted lever; brass with chrome plating for all others
Brass with chrome plating
Phenolic resin
Steel with chromate plating over 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
–10°C through +70°C (+14°F through +158°F)
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 double nut
www.nkk.com
Series S
A107
A