Current notation in brackets ( ? )
#1
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Current notation in brackets ( ? )
Good day,
This is my first post here, and I appreciate all responses. I have been trying to find an answer but the nature of the question makes it difficult to search for in a practical sense. What does the numbers in bracket mean when viewing current specifications for a device?
eg. 5 (50)A
My guess is that 5A is the nominal value, while 50A is the max value but for a brief time, or possibly with the use of a CT. The device is an in-line watt meter.
Thanks.
This is my first post here, and I appreciate all responses. I have been trying to find an answer but the nature of the question makes it difficult to search for in a practical sense. What does the numbers in bracket mean when viewing current specifications for a device?
eg. 5 (50)A
My guess is that 5A is the nominal value, while 50A is the max value but for a brief time, or possibly with the use of a CT. The device is an in-line watt meter.
Thanks.
#3
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Thanks for the quick reply Wirenut. The values are not readings from the meter, but the specifications of the device. This is a clip from the specs page
[table="width: 500"]
[tr]
[td]Rate voltage[/td]
[td]230V 50HZ[/td]
[/tr]
[tr]
[td]Working voltage range[/td]
[td]0.8-1.2Un[/td]
[/tr]
[tr]
[td]Rate Current[/td]
[td]5(65)A Works from 20mA to 65A[/td]
[/tr]
[tr]
[td]Frequency[/td]
[td]50Hz[/td]
[/tr]
[tr]
[td]Connection mode[/td]
[td]Direct type[/td]
[/tr]
[tr]
[td]Accuracy class[/td]
[td]1.0[/td]
[/tr]
[/table]
[table="width: 500"]
[tr]
[td]Rate voltage[/td]
[td]230V 50HZ[/td]
[/tr]
[tr]
[td]Working voltage range[/td]
[td]0.8-1.2Un[/td]
[/tr]
[tr]
[td]Rate Current[/td]
[td]5(65)A Works from 20mA to 65A[/td]
[/tr]
[tr]
[td]Frequency[/td]
[td]50Hz[/td]
[/tr]
[tr]
[td]Connection mode[/td]
[td]Direct type[/td]
[/tr]
[tr]
[td]Accuracy class[/td]
[td]1.0[/td]
[/tr]
[/table]
#4
Welcome to the forums! I think wirenut1110 may be correct, but without seeing what you see, it would be difficult to tell. Maybe you could post a picture of the face of the meter. http://www.doityourself.com/forum/el...your-post.html
Edit: You posted back faster than I type. I see 50 Hz and you are in Jamaica, so the electrical system is different than what we are accustomed to. It does appear to be a range factor for the meter.
Edit: You posted back faster than I type. I see 50 Hz and you are in Jamaica, so the electrical system is different than what we are accustomed to. It does appear to be a range factor for the meter.
#5
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Thanks Chandler. I have not bought the meter as yet, because I am concerned with the specifications. I want it to be able to handle in excess of 5A continuous current without a problem. Hence why I am here. All I am quoting are the specifications listed on the site.
#6
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I tried to get the relevant info from the manufacturer, but there is a language barrier. I have another product for the same application but DC. The notation on it is clearer @60A continuous and @100A peak for a few seconds - I am accustomed to range being written that way, not as 5(60)A for example.