300 & 400 series Miniature pushbutton switches Distinctive features and specifications Dry circuit through power ratings . Compact size. Panel, panel & PC and PC mounting models. B ELECTRICAL SPECIFICATIONS MATERIALS Base: diallyphthalate (DAP) Max. current/voltage rating with resistive load : Actuator: nylon - gold over nickel plated brass contacts : 0.4VA - 20V Max. - coin silver contacts : 1A 125VAC or 28VDC, 0.5A 250VAC, 3A Bushing: nickel plated brass 125VAC or 28VDC, Contacts Initial contact resistance : 10 milliohms max. at 3VDC, 0.1 Amp. B: Gold Insulation resistance : 10,000 M min . Dielectric strength : 1,000 Vrms min at sea level. Q: Coin silver Electrical life : Terminal seal: epoxy Spring bracket: stainless steel Support bracket: brass or tin Model Contacts Rating Number of cycles plated steel 300 (Q) coin silver 1A 125VAC or 28 VDC 250,000 Bezel and cap: nylon 300 (Q) coin silver 3A 125VAC or 28VDC 10,000 300 (B) gold 0.4VA max. at 20V 250,000 400 (Q) coin silver 1A 125VAC or 28 VDC 40,000 400 (Q) coin silver 3A 125VAC or 28VDC 10,000 400 (B) gold 0.4VA max. at 20V 40,000 GENERAL SPECIFICATIONS AGENCY APPROVAL Operating temperature : -30C to +85C Availability: All models with coin silver contacts (Q) only. Marking:: To order switches marked UL, complete appropriate box on ordering format. APEM www.apem.com300 & 400 series Miniature pushbutton switches Overview E SERIES Bushing Bezel & Cap Contact material 301 J81 Snap-in B Gold None Q Coin Silver 302 T1 Standard 15/32 thdd. 305 (see dwg - 301, 303 & 306 305 only). 401 402 B Actuators Terminations Sealing Standard Z Solder lug E Epoxy S Long (see dwg. - specify for C Printed circuit board all models with bezels-not V-1 Right angle p.c. available for 306) terminals for 301, 302, 305, 401 & 402 only. (see dwg) Cap Color Agency approval Bezel color 2 Black NNoo aapppprroovvaall 2 Black 66 Red /UL UL Approval 88 White (Q contact material only) ABOUT THIS SERIES On the following pages, you will find successively : - model structure of switches - options in the same order as in above chart Dimensions : first dimensions are in mm while inches are shown as bracketed numbers. NOTICE : please note that not all combinations of above numbers are available. Refer to the following pages for further information. www.apem.com APEM