Siemens 5SY7463-7 SENTRON 5SY7 Miniature Circuit Breaker 4P C-curve 63 A 15 kA. Siemens 5SY7463-7 miniature circuit breaker from the SENTRON 5SY7 range. Official Siemens active listing: Miniature circuit breaker 400 V 15kA, 4-pole, C, 63 A, D=70 mm. Key details: Voltage rating: 400 V, Breaking capacity: 15 kA, Poles: 4P, Trip curve: C, Rated current: 63 A, Installation depth: 70 mm. Selected for Egypt and Gulf MCB demand, including distribution boards, light-commercial panels, industrial control panels, maintenance replacement, and OEM panel-building projects.