noun
limit value; limiting value
Technical term used in engineering, mathematics, and regulatory contexts to denote a maximum or minimum allowable value.
この装置の制限値は100ボルトです。
The limit value for this device is 100 volts.
環境基準の制限値を超える排出が報告された。
Emissions exceeding the environmental standard limit values were reported.
限界値 also means 'limit value' but often implies a physical or absolute limit, while 制限値 is more about a set or regulated limit.
Compound of 制限 (seigen, 'restriction, limit') and 値 (chi, 'value').