10PMD Float Switch, Normally Open
10' Cord, 110v, Normally Open.
Manufacturer: American Granby Co.
Mechanical Level Switches are used to control pumps, motors, or other electrical devices. Normally Open (N.O.) or Normally Close (N.C.) refers to the switch contacts when the bulb is hanging in a vertical position. Use N.O. to turn device on with a high level, use N.C. to turn device off with a high level.