MCB 50A, 4P, 415V AC – 5SL4450-7RC

Product Description

Siemens SENTRON MCB – 50A, 4P, 415V AC – 5SL4450-7RC

The Siemens 5SL4450-7RC is a SENTRON 5SL series miniature circuit breaker (MCB) designed for protection of low-voltage electrical distribution systems against overload and short-circuit faults. It is commonly used in industrial distribution boards, commercial panels, and building electrical systems where reliable and compact protection is required.

This model has a 4-pole configuration (3 phases + neutral) and a C-curve tripping characteristic, making it suitable for general-purpose distribution and mixed electrical loads such as lighting, sockets, and control circuits.

With a 10kA breaking capacity at 415V AC, it provides fast fault interruption and ensures protection of wiring and connected equipment in case of short-circuit conditions. 

Key Features:

• Siemens SENTRON 5SL series MCB 

• Rated current: 50A 

• 4-pole (3P + N) protection 

• C-curve tripping characteristic 

• Breaking capacity: 10kA at 415V AC 

• Rated voltage: 400/415V AC 

• DIN rail mounting system 

• Compact modular design 

• High-speed short-circuit protection 

• IEC 60898-1 compliant