Del City Interactive Catalog Page 162

162 relays & power distribution Scan for pricing or go to www.delcity.net/ catalogpricing View the inside catalog cover for Prop 65 Warning. Change Over Relays Change over relays are used in applications that require Change Over Relays, Normally Open Relays or Normally Closed Relays. OPERATING CHARACTERISTICS: Permissible ambient temperature = -40C to 125C (-40F to 257F) Mechanical Life-no load = 10,000,000 operations (frequency 18,000 operations/hr) The following applies for all relays unless otherwise noted: - Operating voltage = 8-16V at 12V; 16-32V at 24V - Contact voltage drop( 1 ) = Typ. 50MV at 10A - Insulation resistance( 1 ) = 20M & Min. (DC 500V) - Operate time( 1 ) = 20ms Max. - Release time( 1 ) = 20ms Max. - Resistive load N.O. = 50A at 14V DC - Resistive load N.C. = 30A at 14V DC - Dielectric strength N.O.( 1 ) = AC 500V, 50/60Hz 1 min - Dielectric strength N.C.( 1 ) = AC 500V, 50/60Hz 1 min - Life Expectancy Mechanical = 10,000,000 operations (frequency 18,000 operations/hr) - Life Expectancy Electrical = 100,000 operations (frequency 1,200 operations/hr) A change over relay switches current from one user to another. Change over relays are used for switching from one horn to the fan, from forward to backward movement of the sliding roof, from opening to closing electrically operated windows and for two-stage uses such as fans and some rear window heating systems. INFORMATION IP54 Rated. Relays * ground diode accordingly mini 280 skirted w/resistor & bracket part no. circuit type amp volt 74977 NC/NO 30/50A 12V Resistor reduces voltage spikes which can damage sensitive electronic equipment. mounting bracket part no. circuit type amp volt 73980 NC/NO 30/50A 12V potted part no. circuit type amp volt 73988 NC/NO 30/50A 12V 74990* NC/NO 30/50A 12V #85 negative w/diode part no. circuit type amp volt 73986 NC/NO 30/50A 12V w/resistor part no. circuit type amp volt 73992 NC/NO 30/50A 12V skirted w/resistor & bracket part no. circuit type amp volt 73994 NC/NO 30/50A 12V #85 positive w/diode part no. circuit type amp volt 73990 NC/NO 30/50A 12V mounting bracket w/resistor part no. circuit type amp volt 73982 NC/NO 15/20A 24V no mounting bracket part no. circuit type amp volt 73984 NC/NO 30/50A 12V Resistor reduces voltage spikes which can damage sensitive electronic equipment. IP54 Rated. * tinned terminals & flux tight seal, without resistor Resistor reduces voltage spikes which can damage sensitive electronic equipment. IP67 Rated. The same as 73984 with a diode. Diode eliminates voltage spikes which can damage sensitive electronic equipment. IP54 Rated. Diode eliminates voltage spikes which can damage sensitive electronic equipment. IP54 Rated. Resistor reduces voltage spikes which can damage sensitive electronic equipment. IP54 Rated. Resistor reduces voltage spikes which can damage sensitive electronic equipment. IP54 Rated. NEW!

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