Dear all,
I would be very grateful for some advice....
I have just replaced my PCB on my hot tub with a new one from China (old Chinese hot tub - first mistake!). The components are supposedly rated for a max draw of 6kw for the heater.
When connected to a 3kw heater, the relay arc's every 20 to 30 seconds, with a nice corresponding flash
What I am not sure of is if the relay is duff, or if it is struggling with the current draw, or if the draw is not high enough to prevent the relay from clicking in and out and arcing. Details below:
Relay:
HF105F-1
012D-1HS
30A 240V AC
Heater:
H30-R1
Amps: 13.6
Power 3kw
Also worth noting, the same relay powers a circulation pump, details below:
DH1.0
Amps 3.8
Power 0.75kw
The arcing happens both with the circulation pump attached and disconnected.
I have 2 diametrically opposed thoughts:
1. The current draw is not high enough for the relay to simply stay on when turned on, which is causing the arcing - install resistor?
2. The relay is struggling with the load for some reason, and is arcing, therefore connecting the existing relay to a heavy duty contactor, and the heater and pump to the contactor may solve the problem?
I'd be really grateful for some advice and guidance, as I am a beginner at all this.
Many thanks,
M@tt
I would be very grateful for some advice....
I have just replaced my PCB on my hot tub with a new one from China (old Chinese hot tub - first mistake!). The components are supposedly rated for a max draw of 6kw for the heater.
When connected to a 3kw heater, the relay arc's every 20 to 30 seconds, with a nice corresponding flash
What I am not sure of is if the relay is duff, or if it is struggling with the current draw, or if the draw is not high enough to prevent the relay from clicking in and out and arcing. Details below:
Relay:
HF105F-1
012D-1HS
30A 240V AC
Heater:
H30-R1
Amps: 13.6
Power 3kw
Also worth noting, the same relay powers a circulation pump, details below:
DH1.0
Amps 3.8
Power 0.75kw
The arcing happens both with the circulation pump attached and disconnected.
I have 2 diametrically opposed thoughts:
1. The current draw is not high enough for the relay to simply stay on when turned on, which is causing the arcing - install resistor?
2. The relay is struggling with the load for some reason, and is arcing, therefore connecting the existing relay to a heavy duty contactor, and the heater and pump to the contactor may solve the problem?
I'd be really grateful for some advice and guidance, as I am a beginner at all this.
Many thanks,
M@tt