Series SB

Low/Medium Capacity Pushbuttons

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C128

C

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