ENGINEERING DATA SHEET SERIES 144 RAILWAY RELAY 2 PDT FOR INRUSH CURRENT, 4 AMP APPLICATION NOTES: 001 007 009 APPLICABLE SOCKET For Socket selection, please contact factory HRCW Non polarized, non latching, hermetically sealed relay Contact arrangement 2 PDT Coil supply Direct current PRINCIPLE TECHNICAL CHARACTERISTICS Contacts rated at 28 Vdc / 4 Amps Rated for capacitive and lamp loads Weight < 11 grams Dimensions of can without hardware 20.6mm x 10.4mm x 10.5mm max Tin plated, hermetically sealed metal can. CONTACT ELECTRICAL CHARACTERISTICS Minimum operating cycles Contact rating per pole and load type Load Current in Amps @28 Vdc @115 Vac/60-400Hz 100,000 cycles 100,000 cycles 500,000 cycles resistive load inductive load (L/R=5ms) low level (30 µA/30 mV) 4 2 - 0.3 - - 100,000 cycles 100,000 cycles on capacitive load at 28 to 72Vdc on lamp load at 28 to 72Vdc Inrush = 8 Amps / 1ms 0.8 Life expectancy for DC loads other than 28Vdc: See application note n°009

Featuring LEACH© power and control solutions   www.esterline.com AMERICAS 6900 Orangethorpe Ave. P.O. Box 5032 Buena Park, CA 90622 USA Tel: (01) 714-736-7599 Fax: (01) 714-670-1145 EUROPE 2 Rue Goethe 57430 Sarralbe France Tel: (33) 3 87 97 31 01 Fax: (33) 3 87 97 96 86 ASIA Units 602-603 6/F Lakeside 1 No.8 Science Park West Avenue Phase Two, Hong Kong Science Park Pak Shek Kok, Tai Po, N.T. Hong Kong Tel: (852) 2 191 3830 Fax: (852) 2 389 5803 Data sheets are for initial product selection and comparison. Contact Esterline Power Systems prior to choosing a component. Date of issue: 4/06 - 1 - Page 1 of 4