MEDER electronic KSK-1A77-... CHARACTERISTICS DIMENSIONS All dimensions in mm [inches] Glass length of 50 mm and diameter of 5.6 mm Normally open 1 Form A contact Breakdown voltage up to 15 kVDC Switching voltage up to 3.5 kVDC CONTACT DATA Switch Model --> Contact For m --> All data at 20 0C Contact Ratings Conditions KSK-1A77-... For m A Max. Units Contact Rating * Any DC combination of V & A not to exceed their individual max.'s Min. T yp . 25 W Switching Voltage D C or peak A C 3.5 kV Switching Current D C or peak A C 1.0 A Carry Current D C or peak A C 6.0 A Static Contact Resistance w/ 0.5V & 10mA 150 mΩ Dynamic Contact Resistance Measured w/ 0.5V & 50mA 1.5 ms after closure 250 mΩ Insulation Resistance across Contacts 100 Volts applied Breakdown Voltage Voltage applied for 60 sec. min. Operate Time, incl. Bounce Measured w/ 100% overdrive 1 0 10 Ω kV D C 15 Release Time Measured w/ no coil suppression Capacitance @ 10kHz across contact 3.0 ms 3.0 ms pF 0.8 Test Coil ** KMS-05 Standard AT range 200 250 AT g Environmental Data Shock Resistance 1/2 sine wave duration 11ms 50 Vibration Resistance From 10 - 2000 Hz 20 Ambient Temperature 10 C/ minute max. allowable -20 Storage Temperature 10 C/ minute max. allowable -55 Soldering Temperature 5 sec. dwell 0 0 g 130 0 C 130 0 C 260 0 C Please note: The indicated electrical data are maximum values and can vary downwards when using a more sensitive switch. * For life expectancy see our life test section located on page 151. ** See our test coil section located on page 157. ORDER INFORMATION Part Number Example - KSK - 1A77 - 200210 200210 is the AT range (Any AT can be ordered between 200 & 250 in a minimum range of 10 AT) SERIES CONTACT FORM SWITCH MODEL AT RANGE (between) KSK - 1A 77 - XXXXXX OPTIONS 200 250 www.meder.com Germany # ++49-(0)7733-94870, USA # 800-870-5385 137