BLK52-630 630A
The BLK52 series explosion-proof circuit breaker shell grade and rated current
BLK52-32 (release rated current: 1A, 3A, 5A, 10A, 15A, 20A, 25A, 32A)
BLK52-60 (release rated current: 40A, 50A, 60A)
BLK52-100 (release rated current: 1A, 3A, 5A, 10A, 15A, 20A, 25A, 32A)
BLK52-225 (release rated current: 80A, 100A)
BLK52-400 (release rated current: 150A, 200A, 225A)
BLK52-630 (release rated current: 500A, 630A)