SAE J259-1971 IGNITION SWITCH

Foreword-This Document has not changed other than to put it into the new SAE Technical Standards Board Format.

1. Scope

2. References-There are no referenced publications specified herein.

3. Definitions
3.1 lgnition Switch-Part of an electrical system by which the operator of a vehicle causes the ignition system to function. In addition to ignition circuitry, the switch may have circuits which control electrical accessories, engine starting, warning indicator lamp checking, etc.

4. Temperature Test
4.1 To insure basic function, the switch shall be manually cycled for 10 cycles at design electrical load at 24±5.5℃(75±10F),74+0,-2.8C(165+0,-5F), and-32+2.8,-0℃(-25+5,-0F) aftera lh exposure at each of these temperatures. The switch shall be electrically and mechanically operable during each of these cycles.
4.2 This same switch shall be used for the endurance test described below.

5. Endurance Test Setup
5.1 The switch shall be set up to operate its design electrical load.
5.2 The test shall be set up to operate the switch for the prescribed number of complete cycles.
One complete cycle shall consist of sequencing through each position(with dwell in each position) and return without dwell in intermediate positions to the initial position.
The test requirements shall be so arranged as to provide the following mechanical time requirements:
Travel Time-0.1-0.5s(time from one position to the next).
Dwell Time-1.0-2.0s(time in each position).

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