57-112R

SERIES 57 4 page (11114) NEW 27 07 2000 5:35 pm Page 2 Data Sheet no. 57 499 SERIES 57 MINIATURE VANDAL RESISTANT PUSHBUTTON FEATURES Vandal Resistant Wide temperature range up to 125C Panel sealed to IP67 High environmental specifications Gold contacts Status illumination Solder terminals Mounts virtually flush to panelSERIES 57 4 page (11114) NEW 27 07 2000 5:35 pm Page 3 Technical Information Description The Series 57 is a range of miniature, momentary action, rugged panel sealed push-button switches with a round button and bezel. The Series is available with or without LED status illumination. A locknut is supplied with each switch. The body and button are manufactured from a non-spark zinc alloy and are velour chrome plated. It is panel sealed to IP67 and is designed to be impact resistant. The small size, robustness and panel sealing make this switch ideal in harsh environments. Status Illuminated Version The illuminated version is available with a choice of 2 high brightness LED colours. Mechanical Travel (nom) 2.3 mm Life (nom) 1,000,000 cycles Operating force (nom) 3N Contact bounce (nom) 1ms Panel thickness (max) 3 mm Electrical Switch & LED SWITCH Dielectric strength 1000V a.c. Insulation resistance 1G Contact resistance (initial) 50m Current rating (typical) 400mA at 32V a.c. resistive 100mA at 50V d.c. resistive 125mA at 125V a.c. resistive Life (min) 500,000 cycles Switching power (max) 16VA a.c. 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 (Iv at lopr) Red LED 100mcd Luminous intensity (Iv at lopr) Green LED 160mcd Environmental & Physical Ingress protection IP67 (panel sealed) Shock 100g Vibration DEF STD 07-55 Non-Illuminated Operating temperature range -40C to +125C