Data Sheet

ManualsBrandsUnbranded ManualsSwitches and Relays2PST Switch Toggle 25A

Medium/High Capacity Standard Size Toggles Series S

2-06

NKK Switches • email: sales@nkkswitches.com • Phone (480) 991-0942 • Fax (480) 998-1435 • www.nkkswitches.com

• Standard Hardware: AT503M Face Hex Nut, AT506 Locking Ring, AT508 Lockwasher, AT527M Backup Hex Nut. See Accessories & Hardware section.

• Solder lug terminal hole accommodates one 10-gauge solid or stranded wire.

S301

Maximum

Panel Thickness:

.185” (4.7mm)

S301 does not have terminal 2

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: 6,000 operations minimum for S331F; 15,000 operations minimum for all other S331s;

25,000 operations minimum for all others

Angle of Throw (α): Shown on following tables

Materials & Finishes

Toggle: PBT for atted lever; brass with chrome plating for all others

Bushing: Brass with chrome plating

Case: Melamine phenol

Case Cover: Steel with zinc plating

Movable Contactor: Copper with silver plating

Movable & Stationary Contacts: Silver alloy capped on copper with silver plating

Terminals: Brass with silver plating

Installation

Mounting Torque: 2.94Nm (26 lb•in) for double nut; 1.47Nm (13 lb•in) for single nut

Soldering Time & Temperature: Manual Soldering: 4 seconds maximum @ 410°C maximum

Standards & Certifications

UL Recognized: Designated with UL recognized symbol beside part numbers on following pages

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

C-UL File No. WOYR8.E44145. Add “/C-UL” to end of part number to order C-UL mark on switch.

CSA Certied: Designated with CSA certied symbol beside part numbers on following pages

File No. 023535-0-000. Add “/C” to end of part number to order CSA mark on switch.

GENERAL SPECIFICATIONS FOR S301 ~ S339

Keyway

(16.0)

.630

(17.5)

.689

(12.0)

.472

32°

(6.1) Dia

.240

M12 P1

(3.2) Dia Typ

.126

(6.0) Typ

.236

(1.6) Typ

.063

(17.4)

.685

(9.6) Max

.378

(28.5)

1.122

(9.0)

.354

(12.5) Dia

.492

(3.0) Dia

.118

SINGLE POLE WITH SOLDER LUG

Toggle Position/Connected Terminals

( ) = Momentary

Electrical Capacity

Model Approvals

Pole &

Throw

Down Center Up

Resistive Inductive

Angle

of Throw

125V

250V

30V

AC 125V

PF 0.6

S301 SPST ON 1-3 NONE OFF —

15A 6A 20A 10A 32°

S302 SPDT ON 2-3 NONE ON 2-1 15A 6A 20A 10A 32°

S303 SPDT ON 2-3 OFF ON 2-1 15A 6A 20A 10A 32°

S305 — SPDT ON 2-3 NONE (ON) 2-1 15A 6A 20A 8A 32°

S308 — SPDT (ON) 2-3 OFF (ON) 2-1 15A 6A 20A 8A 32°

S309 — SPDT ON 2-3 OFF (ON) 2-1

15A 6A 20A 8A 32°

Throw &

Schematics:

SPST

Keyway

SPDT

INTERNAL

CONNECTION

2 (COM)

Note: Terminal numbers are

actually on the switch

Summary of content (10 pages)

PAGE 1
Medium/High Capacity Standard Size Toggles Series S GENERAL SPECIFICATIONS FOR S301 ~ S339 Electrical Capacity (Resistive & Inductive Load) Power Level: Other Ratings Shown in the following tables Contact Resistance: Insulation Resistance: Dielectric Strength: Mechanical Life: Electrical Life: 10 milliohms maximum 1,000 megohms minimum @ 500V DC 2,000V AC minimum for 1 minute minimum 50,000 operations minimum 6,000 operations minimum for S331F; 15,000 operations minimum for all other S331s; 25,000 ope
PAGE 2
Medium/High Capacity Standard Size Toggles Series S DOUBLE POLE WITH SOLDER LUG Toggle Position/Connected Terminals ( ) = Momentary Down Model S331 S332 S333 S335 S338 S339 Pole & Throw Approvals R R R R R R R R R R R R Throw & Schematics: DPST Center Electrical Capacity Resistive Up Keyway Inductive AC 125V AC 250V DC 30V AC 125V PF 0.
PAGE 3
Medium/High Capacity Standard Size Toggles Series S SINGLE POLE WITH SCREW LUG Toggle Position/Connected Terminals ( ) = Momentary Down Model S301T S302T S303T Pole & Throw Approvals R R R R R R Center Electrical Capacity Resistive Up Keyway Inductive AC 125V AC 250V DC 30V AC 125V PF 0.
PAGE 4
Medium/High Capacity Standard Size Toggles Series S SINGLE POLE WITH QUICK CONNECT Electrical Capacity Toggle Position/Connected Terminals Down Model Pole & Throw Approvals S301F R SPST R Throw & Schematics: SPST 1 Center Resistive Up Keyway ON 3 1-3 NONE OFF — AC 125V AC 250V DC 30V AC 125V PF 0.
PAGE 5
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: Insulation Resistance: Dielectric Strength: Mechanical Life: Electrical Life: Angle of Throw (α): 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 Materials & Finishes To
PAGE 6
Series S Medium/High Capacity Standard Size Toggles THREE POLE WITH SOLDER LUG *See Supplement section for UL detail Model Toggle Position/Connected Terminals ( ) = Momentary Approvals S31 * R S32 S33 S38 S39 R * R S35 R * R R R R R R R R Throw & Schematics: Down Pole & Throw Center Resistive Up Keyway Inductive AC 125V AC 250V DC 30V AC 125V PF 0.
PAGE 7
Series S Medium/High Capacity Standard Size Toggles THREE POLE WITH SCREW LUG *See Supplement section for CSA detail Down Model Pole & Throw Approvals S31T — S32T — S33T — R R R Center Resistive Up Keyway α= Angle AC 250V PF 0.6 of Throw AC 250V DC 30V AC 125V PF 0.
PAGE 8
Series S Medium/High Capacity Standard Size Toggles THREE POLE WITH QUICK CONNECT *See Supplement section for UL detail Down Model S31F S32F R S33F Pole & Throw Approvals R R * R * R * Throw & Schematics: Electrical Capacity Toggle Position/Connected Terminals R Center Keyway Inductive AC 125V AC 250V DC 30V AC 125V PF 0.
PAGE 9
Medium/High Capacity Standard Size Toggles Series S GENERAL SPECIFICATIONS FOR S421 ~ S429 Electrical Capacity (Resistive & Inductive Load) Power Level: Shown in the following tables Other Ratings Contact Resistance: Insulation Resistance: Dielectric Strength: Mechanical Life: Electrical Life: Angle of Throw (α): 10 milliohms maximum 1,000 megohms minimum @ 500V DC 2,000V AC minimum for 1 minute minimum 50,000 operations minimum for all other models 15,000 operations minimum Shown in tables on followin
PAGE 10
Series S Medium/High Capacity Standard Size Toggles DOUBLE POLE WITH SOLDER LUG Toggle Position/Connected Terminals ( ) = Momentary Down Model Approvals Center Electrical Capacity Up Keyway Pole & Throw Inductive Motor Load PF 0.75 - 0.