SERIES 49-59 Ð 4 page (11114) 27 07 2000 5:18 pm Page 2 Data Sheet no. 49-59500 SERIES 49-59 – SEALED PUSHBUTTON RANGE FEATURES • Fully sealed version to IP67 • LED status illumination (FL) • 10A version panel sealed to IP67 • Wide temperature range: Up to +105°C • Industrial standard ş16mm panel cut out • Flame retardant UL rated material NON-STANDARD OPTIONS • Custom colours • Choice of terminations • Gold contacts on microswitch version • Snap-in version of both flying lead and microswitch variants SERIES 49-59 Ð 4 page (11114) 27 07 2000 5:18 pm Page 3 Technical Information Series 49-59 ITW Switches’ 49-59 Series is a range of momentary action pushbutton switches which fit a ş16mm panel cut out. The range consists of a fully sealed IP67 version with insulated flying leads (500mm length) along with a panel sealed IP67 version which is terminated by a series 16 microswitch. Held in position by a snap fit retaining mechanism, the microswitch has a maximum current rating of 10A and the advantage of SPDT-DB contacts to cover all circuit requirements. Being double break, the contacts also provide reliable switching of DC loads. The Series is available with a choice of round, round with status illumination (flying leads only) or square bezels and with 6 button colour variants. The body and button are made from PBT, a hard wearing thermoplastic polyester that is suitable for surface or sublimation printing or engraving. Mechanical Travel (nom) 2,3mm Life (min) 1,000,000 cycles Operating force 3N (FL) 3.8 – 5.5N (MS) Panel thickness 8mm max (FL) 2,5mm max (MS w/o washer) 1,5mm max (MS with washer) Electrical Dielectric strength 1000V a.c. for 1 min Insulation resistance 1GΩ @ 500V d.c. Contact resistance 150mΩ max initial inc leads (FL) 25mΩ max initial (MS) Current rating 400mA @ 32V a.c. res (FL) 100mA @ 50V d.c. res (FL) 125mA @ 125V a.c. res (FL) 10A @ 250V a.c. res (MS) Life 500,000 cycles (FL) 50,000 cycles @ 70°C (MS) Electrical – LED Typical fwd voltage (Vf at I operating) 2,2V Max fwd voltage (Vf at I operating) 3,0V Forward current (I operating) 20mA Meantime between failures 100,000 hours Luminous intensity (lv at lopr) Red LED – 100mcd Luminous intensity (lv at lopr) Green LED – 160mcd Environmental & Physical Ingress protection IP67 Vibration DEF STD 07-55 Non-illuminated Operating temperature range -55°C to +105°C Illuminated Operating temperature range -35°C to +85°C Body material PBT Button material PBT Contacts Gold plated palladium nickel (FL) Silver (MS) Terminals Tin plated brass (MS) Salt mist BS2011 Part 2:1 Key Soldering information 320°C max for 3s FL Version with flying leads MS High current microswitch terminated version SERIES 49-59 Ð 4 page (11114) 27 07 2000 5:18 pm Page 4 Ordering Information Button Style 49-59 – Round bezel 1 Square bezel 2 Round bezel – Illuminated 3 Termination/Body Style 500mm leads 1 16-439088 (Non-illuminated only) 2 Button Colour Black 1 Red 2 Green 3 White 4 Yellow 5 Blue 6 (Illuminated version only available with Black, Red & Green as standard. Non-standard colours subject to MOQ’s) LED Colour Red R Green G (This digit is only required for illuminated switches) Mounting Information The Series 49-59 fits neatly into a ş16mm cut out panel no more than 8mm thick for the flying lead version and no more than 1,5mm thick for the microswitch version (with sealing washer). The switch body is fitted from the front of the panel and is locked down with an M16 nut using a 20mm spanner. Panel sealing is achieved by the use of a sealing washer which is placed behind the head of the bezel. To attain the correct sealing, the nut should be tightened to a recommended torque of between 1Nm and 1,5Nm not exceeding 2Nm. Whilst the flying lead version is now mounted, the microswitch still requires careful ‘snapping’ into its holder from behind the panel. Each flying lead switch is supplied with 500mm 24AWG 7/32 leads which are PVC insulated and have plain unstripped ends. The microswitch version has 2.8mm QC terminals which also provide the option to solder. Double ‘D’ flats are provided to prevent rotation of the switch in the panel. Ingress Protection Rating Key For flying lead version For microswitch version SERIES 49-59 Ð 4 page (11114) 27 07 2000 5:18 pm Page 1 Data Sheet no. 49-59500 SERIES 49-59 Sealed Pushbutton Range Technical Information Product Drawings All dimensions in Millimetres NC NC NO NO NO NO FORM X FORM Z Circuit for flying lead version Circuit for microswitch version Application References • Communications • Environmentally demanding keypads • Instrumentation • Mass transport controls • Data processing • Dry circuit switching • Military environments Further Information For further information on our complete range of switch products, visit our website – www.itwswitchcon.com or contact our Sales Office. ITW Switches, Division of ITW Limited, Norway Road, Hilsea, Portsmouth PO3 5HT, UK Tel: +44 (0)2392 694971 Fax: +44 (0)2392 666352 Website: www.itwswitchcon.com Due to our policy of continuous product development, ITW Switches retain the right to change the specification at any time without prior notice. Designed & printed in the UK.