ABB SU201M - 6-6A, Miniature Circuit Breaker (MCB)

Meet the ABB SU201M 66A Miniature Circuit Breaker (MCB) — a compact, dependable protector designed to keep electrical distribution safe and reliable. Built for demanding environments, this MCB delivers precise overcurrent protection for panelboards, switchboards, control panels, and OEM equipment, helping to minimize downtime and protect downstream machinery.

• Current rating: 66A
• Breaker type: Miniature Circuit Breaker (MCB)
• Applications: panelboards, switchboards, control panels, OEM equipment
• Ideal for: industrial, commercial, and OEM environments where dependable protection and safe operation are critical
• Protection focus: overcurrent and short-circuit scenarios to shield wiring, components, and equipment

Why choose the ABB SU201M for your distribution system

Designed with reliability in mind, the SU201M delivers consistent trip characteristics that engineers trust in busy electrical rooms. By interrupting fault currents promptly, it prevents damage to conductors, motors, and control circuitry, supporting long-term system integrity. Its 66A rating offers a practical balance between protective intensity and the conductor size typical in mid-range distribution panels.

Ideal use cases

• Factory motor control centers and feeder circuits requiring robust overcurrent protection
• Commercial building distribution panels protecting lighting, outlets, and essential circuits
• OEM equipment where a compact, reliable MCB is essential for safe operation

Incorporating the ABB SU201M into your panels and control enclosures delivers clear safety benefits: predictable performance, rapid fault interruption, and compatibility with standard distribution architectures. When reliability matters and downtime isn’t an option, this 66A MCB from ABB helps you protect your investment and keep systems running smoothly.