M3950/16 & M83731/24 QPL listed toggle switches - threaded bushing O 11,9 (15/32) Distinctive features Approval and lists M3950/16 M83731/24 QPL listed This range of professional toggle switches is suitable for use in military and other high specification environments. Contacts Highly reliable contacts suitable for low level applications (10mA 50mV 10A 5VDC min.) or power applications (2A 250VAC - 4A 125VAC 4A 30VDC max.) Pinned lever The base of the switch lever is pinned to the bushing, thus earthing the lever to the bushing. This also provides strain relief to protect the switch if accidentally knocked. Double shell case For high mechanical strength and high electrical insulation. Compact size The small rear end of the switch allows space saving behind the panel. Finish Matt black finish on body, bushing, lever and hardware. Sealing Panel sealed to IP 67, these switches are frontal sealed by two O-rings and have full rear end sealing. Accessories A comprehensive range of protection boots (both full and half length), locking levers and security caps are available. www.apem.com APEM M3950/16 & M83731/24 QPL listed toggle switches - threaded bushing O 11,9 (15/32) Specifications ELECTRICAL SPECIFICATIONS * Max. current/voltage rating with resistive load : 2A 250VAC - 4A 125VAC - 4A 28VDC * Minimum load : 10mA 50mV, 10A 5VDC When used above 300mA 28VDC, the gold plating is removed on contact areas and is considered only as a protection against oxidation during storage. * Initial contact resistance : 10 m max. Volts * Insulation resistance : 1.000 M min. at 500VDC 250 VAC * Dielectric strength : 1.000 Vrms 50 Hz min. between terminals 125 VAC 2.000 Vrms 50 Hz min. between poles 2.000 Vrms 50 Hz min. between terminals and frame * Contact bounce : 2 ms max. * Electrical life : 48 VDC - At 2A 250VAC - 4A 28VDC : 20.000 cycles (10.000 for functions 5, 4-1R, 4-2R) 28 VDC - At low level (50mV 10mA) : 5 VDC 150.000 cycles (switches with 2 maintained positions) 50 mV 100.000 cycles (switches with 3 maintained positions) Amps 10mA 10A 2A 1A 4A 50.000 cycles (momentary functions 7, 8, 4-1R, 4-2R, 5) MATERIALS * Case: diallylphthalate (DAP) with plastic external shell (epoxy sealed) * Actuator: brass, black chrome plated * Bushing : brass, black chrome plated * Contacts : solid rivet gold plated silver/nickel alloy SEALING * Front panel sealing by two O-rings Flatted bush for precise orientation Flat * Panel seal withstands 1 bar pressure and remains sealed even when the switch is operated. * Epoxy sealed terminals 1 O-rings * Splash-proof case GENERAL SPECIFICATIONS * Torque : 1,50 Nm (1.10 Ft.lb) max. applied to nut * Panel thickness : 8 mm (.314) max. - 3 mm (.118) min. * Shock test : 50g - 11ms (IEC 68-2-27) * Vibrations : 10-500 Hz - 10g (IEC68-2-6) * Operating temperature : -40C to +85C * Humidity test : 56 days, 93 % R.H., 40C (IEC 68-2-3) * Salt spray test : 96 hours (IEC 68-2-11) APPROVALS All models within this range are QPL listed and comply with M3950 and M83731 APEM www.apem.com M3950/16 & M83731/24 QPL listed toggle switches - threaded bushing O 11,9 (15/32) Overview Military designation M3950/16 M83731/24 0 1 1 2 Fluorescent tip None White fluorescent tip to lever Terminals Solder lug terminals Straight PC terminals 6 9 7 8 Electrical functions ON ON OFF MOM OFF ON OFF ON ON MOM MOM A D Momentary Non-momentary Momentary Levers 10 12 Standard lever Short lever Locking levers 1V 2V 3V 1 locked position 2 locked positions 3 locked positions 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 bracketted numbers. Sealing boots can be used to further protect the switches against dust and water. They are presented in section H. Mounting accessories : standard hardware supplied with all models : 1 hex nut 14 mm (.551) across flats, part number U41. This nut is presented after model structure of switches. Security caps are available to prevent inadvertent lever operation. They are presented in section I. Packaging unit : 20 pieces . www.apem.com APEM M3950/16 & M83731/24 QPL listed toggle switches - threaded bushing O 11,9 (15/32) Terminations * Solder lug or straight PC terminals Flat Solder lug terminals - three pole M3950/1616 M3950/1619 M3950/1617 M3950/1618 I II III ON ON ON OFF ON MOM OFF MOM ON OFF MOM Standard lever FLUORESCENT TIP Blank 0.38 LEVERS Levers Locking lever None White fluorescent tip. Becomes luminous when submitted to ultra-violet rays. / LOCKING LEVERS Sealing boots : see section H. Security caps : see section I. Standard (leave blank) Locking levers -1V 1 locked position (function 6) APEM -12 Short lever Flat -2V 2 locked positions (function 6) www.apem.com -3V 3 locked positions (functions 9 and 4)