ENGINEERING DATA SHEET SERIES FD472 RAILWAY RELAY 2PDT-DB-DM, 3 AMP / 72VDC APPLICATION NOTES: 001 004 007 APPLICABLE SOCKET: SF400CE40E SF402-1F Polarized, latching, hermetically sealed relay Contact arrangement 2PDT-DB-DM Coil supply Direct current PRINCIPLE TECHNICAL CHARACTERISTICS Contact rating 72 Vdc / 3 Amp Weight < 80 grams Dimensions of can without hardware 26mm x 25.7mm x 26mm max Balanced-force design. Tin plated, hermetically sealed metal can. Non-overlapping contact arrangement, see note 5 page 4. CONTACT ELECTRICAL CHARACTERISTICS Nominal contact voltage (Vdc) Contact rating in Amps Level Minimum operating cycles resistive load inductive load (L/R=30ms) 72 V 15 £ U £ 35 V 35 < U £ 90 V 90 < U £ 140 V 3 - - - 1.2 10 mA to 2.50 Amps 10 mA to 1.00 Amps 10 mA to 0.70 Amps High level High level High level High level 1,000,000 cycles 2,000,000 cycles 2,000,000 cycles 2,000,000 cycles Life expectancy for DC loads other than 72Vdc: See application note n°004.

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 - 46 - Page 1 of 4