Current temperature coefficient of Delixi circuit breaker and leakage switch
Summary: The reference temperature of Delixi Electric's circuit breaker and leakage switch during use is+30 ℃. If multiple circuit breakers and leakage switches are installed in a sealed box at the same time, the temperature in the distribution box will rise accordingly. The use current is 0.8In. If the actual load current is 32A, 40A circuit breaker or leakage switch needs to be selected; When the ambient temperature changes, the rated current value will also be corrected accordingly.
Delixi Electric Of Circuit breaker and Leakage switch The reference temperature during use is+30 ℃. If multiple circuit breakers and leakage switches are installed in the sealed box at the same time, the temperature in the distribution box will rise accordingly. The use current is 0.8In. If the actual load current is 32A, the 40A circuit breaker or leakage switch needs to be selected; When the ambient temperature changes, the rated current value will also be corrected accordingly.
| Rated current (A) |
Rated current correction value (A) |
| 0℃ |
10℃ |
20℃ |
30℃ |
40℃ |
| one |
one point one five |
one point one zero |
one point zero five |
one |
zero point nine four |
| two |
two point four three |
two point two six |
two point one eight |
two |
one point nine three |
| three |
three point five seven |
three point three seven |
three point one eight |
three |
two point eight two |
| four |
four point seven five |
four point five six |
four point three three |
four |
three point nine eight |
| five |
five point eight three |
five point seven seven |
five point four two |
five |
four point eight five |
| six |
six point nine six |
six point six two |
six point three |
six |
five point six four |
| eight |
nine point seven five |
eight point five one |
seven point nine eight |
eight |
seven point one |
| ten |
twelve point two five |
eleven point four five |
ten point seven |
ten |
nine point three |
| thirteen |
fifteen point eight three |
fourteen point two two |
thirteen point seven five |
thirteen |
twelve point one |
| sixteen |
nineteen point zero six |
seventeen point nine eight |
sixteen point nine six |
sixteen |
fifteen point zero four |
| twenty |
twenty-three point eight two |
twenty-two point four seven |
twenty-one point two |
twenty |
eighteen point eight |
| twenty-five |
twenty-nine point seven eight |
twenty-eight point zero nine |
twenty-six point five |
twenty-five |
twenty-three point two five |
| thirty-two |
thirty-eight point one two |
thirty-five point nine six |
thirty-three point nine two |
thirty-two |
thirty point zero eight |
| forty |
forty-nine |
forty-five point eight |
forty-two point eight |
forty |
thirty-six point eight |
| fifty |
sixty-three |
fifty-eight point three two |
fifty-four |
fifty |
forty-six |
| sixty-three |
seventy-seven point one eight |
seventy-two point one three |
sixty-seven point four one |
sixty-three |
fifty-eight point five nine |
The above table is the table of temperature correction factors for rated current. It is only necessary to find the correction factor at the operating temperature corresponding to the corresponding current on the circuit breaker or leakage switch. The principle for selecting electrical switches is "whether it can be larger or smaller". Generally, it is only necessary to select a product with a specification larger than that currently used.
