Datasheet

ManualsBrandsNKK ManualsNon-Illuminated Pushbutton SwitchesPushbutton Switch 1NO OFF-(ON) Black

Series SB

Low/Medium Capacity Pushbuttons

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C128

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AccessoriesSupplement

Tactiles

KeylocksRotaries

Pushbuttons

Illuminated PB

Slides

Programmable

Rockers

Touch Tilt

Toggles

Electrical Capacity (Resistive Load)

Power Level: Shown in the following tables

Other Ratings

Contact Resistance: 10 milliohms maximum

Insulation Resistance: 200 megohms minimum @ 500V DC for SB221s, SB25, & SB265;

1,000 megohms minimum @ 500V DC for SB60s.

Dielectric Strength: 1,500V AC minimum for SB265 & SB25 for 1 minute minimum;

2,000V AC minimum between contacts for SB221s & SB60s for 1 minute minimum;

1,500V AC minimum between contacts & case for SB221s & SB60s for 1 minute minimum

Mechanical Life: 50,000 operations minimum for SB221s;

30,000 operations minimum for SB25, SB60s, SB265

Electrical Life: 10,000 operations minimum

Total Travel: SB221s .116” (2.95mm); SB60s .094” (2.4mm); SB265 .213” (5.4mm);

SB25 .195” (4.95mm)

Operating Temp Range: –10°C through +70°C (+14°F through +158°F)

Materials & Finishes

Cap: Polybutylene terephthalate (PBT) (AT414)

Plunger: Polyacetal or brass with nickel plating

Bushing: Brass with nickel plating

Case: Phenolic resin or melamine phenolic resin

Case Cover: Steel with zinc plating

Movable & Stationary Contacts: Copper with silver plating for SB221s; silver alloy with silver plating for SB25, SB60s, & SB265

Terminals: Copper with tin plating for SB25 & SB60s; copper with silver plating for SB265

Installation

Soldering Time & Temp: Manual Soldering (Solder Lug): See Proﬁle A in Supplement section.

Standards & Certifications

UL: File No. E44145 - Recognized only when ordered with marking on switch.

Add “/U” or “/CUL” to end of part number to order UL recognized switch.

UL or cULus recognition designated beside part numbers on following pages.

See Supplement section to ﬁnd UL or cULus rating details.

CSA: File No. 023535_0_000 - Certiﬁed only when ordered with marking on switch.

Add “/C” to end of part number to order CSA certiﬁed switch.

CSA certiﬁcation designated beside part numbers on following pages.

See Supplement section to ﬁnd CSA rating details.

GENERAL SPECIFICATIONS FOR SB25, SB60s, SB221s, SB265

Summary of content (3 pages)

PAGE 1
Toggles Series SB GENERAL SPECIFICATIONS FOR SB25, SB60s, SB221s, SB265 Electrical Capacity (Resistive Load) Rockers Pushbuttons Programmable Illuminated PB Keylocks Rotaries Slides Low/Medium Capacity Pushbuttons Power Level: Shown in the following tables Other Ratings C Contact Resistance: Insulation Resistance: Dielectric Strength: Mechanical Life: Electrical Life: Total Travel: Operating Temp Range: 10 milliohms maximum 200 megohms minimum @ 500V DC for SB221s, SB25, & SB265; 1,
PAGE 2
Toggles Series SB Low/Medium Capacity Pushbuttons SINGLE POLE WITH SOLDER LUG * OR SCREW LUG Pushbutton Position/Connected Terminals ( ) = Momentary US SB221NO SB221NC SB221TNO SB221TNC –– –– –– –– Suffix T = Screw Lug Throw & Schematic: SPST SPST SPST SPST Normal Keyway Down OFF ON OFF ON – 1-4 – 1-4 (ON) (OFF) (ON) (OFF) SPST SB221NO 1 1-4 — 1-4 — SPST SB221NC 4 1 AC 125V AC 250V 3A 3A 3A 3A 1.5A 1.5A 1.5A 1.
PAGE 3
Series SB Toggles Low/Medium Capacity Pushbuttons DOUBLE POLE WITH SOLDER LUG * Rockers * UL, cULus & CSA recognized only when ordered with marking on switch (see General Specs) *Approvals Model R C R US Pole & Throw Normal DPDT ON C 2-3 5-6 1 Rotaries 3 5 15A 9A Note: Terminal numbers are actually on the switch. 6 4 AC 250V (2.4) Dia .094 Keyway M12 P1 (4.8) Typ .189 (13.2) Dia .520 (12.5) Dia .492 63 COM (11.5) .453 (31.2) 1.228 52 (8.0) .315 (1.5) .060 41 (7.0) .