Fuse Selection for AC Motor and Lights - Safety
Fuse Selection for AC Motor and Lights - Safety
(OP)
I'm designing a circuit that will control turning on/off two rotating emergency lights. The specs for the rotating lights are linked below. Should I include a fuse in my design and how do I select the proper fuse? I want to ensure that the circuit is is safe to have in the home and it won't cause a fire or shock anyone.
Brief Description of Circuit:
Arduino with IR receiver will switch on the AC power source through a relay that will provide power to the two lights in parallel. If a fuse is recommended it will be connected to the phase side of the power source before the relay.
Rotating Warning Light
Brief Description of Circuit:
Arduino with IR receiver will switch on the AC power source through a relay that will provide power to the two lights in parallel. If a fuse is recommended it will be connected to the phase side of the power source before the relay.
Rotating Warning Light





RE: Fuse Selection for AC Motor and Lights - Safety
RE: Fuse Selection for AC Motor and Lights - Safety
Should the fuse be slow blow or fast and can you help me understand how you decided on 1.6A to 2A?
RE: Fuse Selection for AC Motor and Lights - Safety
RE: Fuse Selection for AC Motor and Lights - Safety
I'm narrowed my search for fuses down those in the link below:
Fuses
RE: Fuse Selection for AC Motor and Lights - Safety
Then I will assume that it is being plugged into a 110V outlet - which already has fused protection (probably 10 amps).
Your vacuum cleaner, blender, lamps, etc don't have their own fuses ... they rely on the fused protection from the outlet.
But ... this means the various cables, switches, relays, etc have to be good for handling the full current from the receptacle, in the event that something goes wrong.
RE: Fuse Selection for AC Motor and Lights - Safety
The motor for the light is a Synchron brand single-phase synchronous motor that runs at 60 rpm. The clocks these are used in don't have fuses but they may have components that can handle up to 10 Amps.
http://www.decodesystems.com/help-wanted/simplex-c...
Based on the information you provided me, I think I need a fuse. I'm not sure how to determine what I2t rating and what rated voltage I need.