Normal Open

Views Updated: Dec 15, 2025

Key Facts

Abbreviation
NO
Pronunciation
/ˈnɔrməl ˈoʊpən/
Category
Miscellaneous
Related Field
Unclassified

Examples in Context

  1. Normal close, normal open, manual reset, one-shot.
  2. Stainless steel hopper with a 3-position safety turret valve for normal open position, closed position and discharge through a slanted pipe in front of the turret valve.
  3. The technology approach of complementary isolation is that it makes a pair of normal open contacts of a power electromagnetic relay in parallel with two poles of the output diode, and adopts a redundancy control signal to control the contacts on closing or opening state.
  4. Software and hardware methods are both proposed, and it is also concluded that normal open contacts have more interference failures than normal closed contacts during the running of the system.
  5. Method : We exchange the conjunction sequence of three NO ( normal open ) contacting points of radiograph high voltage preparing work relay & MAG SW - R with three reverse parallel connection of main thyristors.

Other meanings of NO