StephenSDH
Senior Member
- Location
- Allentown, PA
We have a switchgear that was ordered with Square D LE breakers. They are a 600A Frame, 250A Sensor, and plugs. Each breaker is not matching up to the sizes we requested. One was an ARP063 (x 0.63) plug giving us 157A when we requested 110A.
I informed the distributor that the plug would need to be changed to match the breaker size that was requested. He called a Square D tech and got back to me that the plug was fine, we just need to adjust down our long term trip setting. I saw in the manual it mentioned the trip was based on the Sensor x Plug x Long Term Setting, which I understand would cause the breaker to trip at a lower current. I can't believe this is correct, becaused it is not fixed at a current rating.
I am unable to find a Square D manual listing the available plug sizes. This is new to me can someone fill me in.
I informed the distributor that the plug would need to be changed to match the breaker size that was requested. He called a Square D tech and got back to me that the plug was fine, we just need to adjust down our long term trip setting. I saw in the manual it mentioned the trip was based on the Sensor x Plug x Long Term Setting, which I understand would cause the breaker to trip at a lower current. I can't believe this is correct, becaused it is not fixed at a current rating.
I am unable to find a Square D manual listing the available plug sizes. This is new to me can someone fill me in.