M maverick Member Nov 10, 2003 #1 Is it permissible to apply rule 430-112 to a circuit that feeds several smoke fire damper motors and use the single pole breaker as the service disconnect for a group of several damper motors.
Is it permissible to apply rule 430-112 to a circuit that feeds several smoke fire damper motors and use the single pole breaker as the service disconnect for a group of several damper motors.
N nvcape Senior Member Nov 10, 2003 #2 Re: smoke fire damper disconnect Fire smoke dampers have actuators and are listed at maybe 10VA, some are 24V, others pneumatic. I don't think 430 applies.
Re: smoke fire damper disconnect Fire smoke dampers have actuators and are listed at maybe 10VA, some are 24V, others pneumatic. I don't think 430 applies.
tom baker First Chief Moderator & NEC Expert Staff member Location Bremerton, Washington Occupation Master Electrician Nov 10, 2003 #3 Re: smoke fire damper disconnect What is the voltage of the actuator?
M maverick Member Nov 12, 2003 #4 Re: smoke fire damper disconnect The damper motor voltage is 120 volt. They are not pneumatic.