relais à contact empilé

OBS: Équivalent proposé par Jean-Paul Champagne de la division de terminologie militaire.

CONT: Modern combustion equipment has a primary control, known as a cadmium sulphide cell, mounted in the burner blast tube. The light from the flame activates it. These devices are energized whenever the burner is operating. This is known as ""constant ignition"". Many older types of stack relays work intermittently, providing ignition only on start-up.