The Synchro-Start Electronic Speed Switches were available in five variants: ESSB, ESSC, ESSD, ESSE-1 and ESSE-2.
The model ESSC Electronic Speed Switch meets the needs of most engine control systems tor overspeed protection, crank disconnect and generator field flash. Models are available in 1, 2, or 3 speed switch points. All relays energize on increasing speed with manual reset available on the highest switch point. The ESSC offers excellent repeatability over wide operating temperatures and voltage range.
Nowadays, the ESSC is replaced by the Synchro-Start electronic or Woodward digital speed switches. We offer complete ESSC retrofit kits.PDF Specsheet
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