ST203M-K50 - 50A

The 50A, 3P Mini Circuit Breaker is a heavy-duty protective device designed to safeguard three-phase electrical systems from overloads and short circuits. Suitable for commercial and industrial applications, this miniature circuit breaker delivers reliable, high-capacity protection while maintaining a compact design for space-efficient installations.

With a 50-amp rating and three poles (3P), it is ideal for protecting motors, HVAC systems, and other high-load equipment in multi-phase power setups. Built with durable materials and a robust trip mechanism, this breaker ensures consistent performance and long-term reliability.

Key Features:

• Device Type: Miniature Circuit Breaker (MCB)
• Poles: 3P (Three Pole)
• Rated Current: 50A
• Application: Overload and short circuit protection in three-phase systems
• Design: Compact footprint for panelboard and enclosure compatibility
• Installation: Easy DIN rail or bolt-on mounting (model dependent)
• Usage: Ideal for commercial and industrial power distribution systems

This 50A, 3P Mini Circuit Breaker is an essential solution for ensuring the safe operation of complex electrical installations, offering durable protection and efficient performance across a variety of applications.

Documents:

Instructions and Manuals
ST 200 M Technical Data Sheet

Data Sheet, Technical Information
ST 200 M Technical Data Sheet