ENGINEERING DATA SHEET SERIES 77 CONTACTOR 1PST-DM, 80 AMP/28 VDC Letter 30243STPA Permanent duty Main contact 1PNO-DM Coil supply Direct current Meets the requirements of AIR 7304 AIR 8456B AIR 9456 MIL 6106J PRINCIPLE TECHNICAL CHARACTERISTICS Contacts rated at 80 A / 28 Vdc Weight - Ref. P/N: 77 148 g ±10% - Ref. P/N: S77 168 g ±10% - Ref. P/N: M77 173 g ±10% Maximum size 59.5mm x 48mm x 36mm Dust proof metal can. CONTACT ELECTRICAL CHARACTERISTICS Contact rating per pole and load type Load Current in Amps @28Vdc Resistive Inductive Motor Overload Rupture I minimum 80 (In) 48 80 8 In [1] 10 In [2] In/10 Notes: [1] 640 Amps for 50 cycles; duty cycle: .2 sec on, 20 sec off. [2] 800 Amps for 50 cycles; duty cycle: .2 sec on, 20 sec off.  3. Other models available upon request. Contact factory. [4] Additional temperature ratings available.

www.leachintl.com North America 6900 Orangethorpe Ave. P.O. Box 5032 Buena Park, CA 90622 USA Tel: (01) 714-736-7599 Fax: (01) 714-670-1145 Europe, SA 2 Rue Goethe 57430 Sarralbe France Tel: (33) 3 87 97 98 97 Fax: (33) 3 87 97 84 04 Asia-Pacific Ltd. 20/F Shing Hing Commercial Bldg. 21-27 Wing Kut Street Central, Hong Kong Tel: (852) 2 191 2886 Fax: (852) 2 389 5803 Data sheets are for initial product selection and comparison. Contact Leach International prior to choosing a component. Date of issue: 6/06 - 49 - Page 1 of 3