SPECIFICATIONS SUBJECT TO CHANGE WITHOUT NOTICE
ST SERIES - MINIATURE TOGGLE SWITCHES
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FEATURES
Dry circuit through power ratings .
Ultra-rugged construction SPDT & DPDT models with numerous options.
Panel, panel & p.c. and p.c. mounting models, lighted and unlighted.
SPECIFICATIONS
Contact ratings (resistive loads):
Initial contact resistance:
Insulation resistance:
Dielectric strength:
Electrical life (resistive loads):
Operating temperature range:
(Q) power models - coin silver: 6 Amps at 125 VAC, 3 Amps at 250 VAC or 7
Amps at 30 VDC.
(B) dry circuit models - gold over nickel over brass: 0.4 VA max. at 20 V max.
UL models - coin silver: 6 Amps at 125 VAC or 3 Amps at 250 VAC (75%
power factor). UL file no. E66367. CSA models - coin silver: same ratings as
UL models. CSA file no. LR54592-1.
3 milliohms max. at 3 VDC, 0.1 Amp.
Greater than 200,000 megohms between terminals & case ground.
Greater than 2000 VAC for 1 minute between terminals & case ground.
100,000 cycles min.for ST1-1 & ST2-1. Other models, 40,000 cycles min.
-30°C to +85°C
MATERIALS
Contacts:
Actuator:
Bushing:
Strap:
Case:
Terminal seal:
Support bracket:
Spring mounting bracket:
Bezel & bezel insert:
Hardware:
LED:
Coin silver for power,UL & CSA models. Gold over nickel over brass for dry
circuit models.
Brass, bright nickel or chrome plated.
Nickel plated brass
Stainless steel
DAP, color blue
Epoxy (optional)
Brass or steel, tin plated
Stainless steel
Nylon. Available in black, red & white. Consult factory for other colors.
See 'Miscellaneous' section.
Intensity: 2.0 mcd at 10 mA. Forward voltage: 2.0V (3.0V max.). Max. continuous forward current: 15 mA for red, 30 mA for green & 20 mA for yellow.
Red is standard. Yellow & green are optional. Specifications are subject to
change without notice - consult factory.
AGENCY RECOGNITION
UL, & CSA. Marking: Switches ordered by UL model number are supplied with recognition marking.
Switches ordered by UL model no. and with '/CSA' added at end of model no. are supplied with
both recognitions marked.
ABOUT THIS SERIES
The material in this series is organized in the following sequence:
a. Completely specified switch models b. Miscellaneous c. 'build your own switch' order format
d. Option drawings & information e. Panel cut-outs
APEM, PO BOX 8288, HAVERHILL, MA USA 01835-0788 TOLL FREE: (877) 246-7890 FAX: (978) 372-3534 E-mail: info@apem.com
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