ST SERIES - MINIATURE TOGGLE SWITCHES K 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): (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. Initial contact resistance: 3 milliohms max. at 3 VDC, 0.1 Amp. Insulation resistance: Greater than 200,000 megohms between terminals & case ground. Dielectric strength: Greater than 2000 VAC for 1 minute between terminals & case ground. Electrical life (resistive loads): 100,000 cycles min.for ST1-1 & ST2-1. Other models, 40,000 cycles min. Operating temperature range: -30C to +85C MATERIALS Contacts: Coin silver for power,UL & CSA models. Gold over nickel over brass for dry circuit models. Actuator: Brass, bright nickel or chrome plated. Bushing: Nickel plated brass Strap: Stainless steel Case: DAP, color blue Terminal seal: Epoxy (optional) Support bracket: Brass or steel, tin plated Spring mounting bracket: Stainless steel Bezel & bezel insert: Nylon. Available in black, red & white. Consult factory for other colors. Hardware: See Miscellaneous section. LED: Intensity: 2.0 mcd at 10 mA. Forward voltage: 2.0V (3.0V max.). Max. contin- uous 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 K45 SPECIFICATIONS SUBJECT TO CHANGE WITHOUT NOTICEST SERIES - MINIATURE TOGGLE SWITCHES K USA marking on opposite side Solder lug terminals - panel mounting POWER CKT. MODEL NO. UL MODEL NO. ST1-1KMZQ UL11KMZQ ON NONE ON ST1-2KMZQ UL12KMZQ ON OFF ON ST1-4KMZQ UL14KMZQ ON OFF MOM SINGLE DOUBLE ST2-1KMZQ UL21KMZQ ON NONE ON ST2-3KMZQ UL23KMZQ ON OFF ON POLE POLE ST2-4KMZQ UL24KMZQ ON OFF MOM ST2-6KMZQ UL26KMZQ ON ON ON ST2-7KMZQ UL27KMZQ ON ON MOM ST2-8KMZQ UL28KMZQ MOM ON MOM Terminals connected (-6, -7 & -8) 1-2, 1-2, 2-3, 4-5 5-6 5-6 Terminal numbers SINGLE POLE for reference only DOUBLE POLE USA marking on opposite side Straight p.c. terminals - panel mounting POWER CKT. MODEL NO. UL MODEL NO. ST1-1KMCB UL11KMCQ ON NONE ON ST1-2KMCB UL12KMCQ ON OFF ON ST1-4KMCB UL14KMCQ ON OFF MOM ST2-1KMCB UL21KMCQ ON NONE ON SINGLE DOUBLE ST2-2KMCB UL22KMCQ ON OFF ON POLE POLE ST2-4KMCB UL24KMCQ ON OFF MOM ST2-6KMCB UL26KMCQ ON ON ON ST2-7KMCB UL27KMCQ ON ON MOM ST2-8KMCB UL28KMCQ MOM ON MOM Terminals connected (-6, -7 & -8) 1-2, 1-2, 2-3, 4-5 5-6 5-6 Terminal numbers SINGLE POLE for reference only DOUBLE POLE K46 APEM, PO BOX 8288, HAVERHILL, MA USA 01835-0788 TOLL FREE: (877) 246-7890 FAX: (978) 372-3534 E-mail: info apem.com Double pole Sing l pole Double pole Sing l pole SPECIFICATIONS SUBJECT TO CHANGE WITHOUT NOTICE