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MSAA66166

Technical Parameters Parameter Category Specification Details General Model MSAA66166 Memshield 3, 63A, 3-Pole, C-Curve, 10kA Product Line Eaton Memshield 3 (MS3) Electrical Characteristics Rated Current (In) 63 A Number of Poles 3 Rated Voltage (Ue) 415V AC / 240V AC Tripping Characteristic C-Curve (Instantaneous trip: 5 to 10 x In) Rated Breaking Capacity (Icn) 10 kA (at 400V AC according to IEC 60898) Rated Frequency 50/60 Hz Mechanical Characteristics Mounting Standard 35mm DIN Rail Electrical Life Typically > 10,000 cycles Terminal Type Screw clamp terminals suitable for copper conductors. Standards & Compliance Safety Standards IEC/EN 60898-1, CE marked.

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The Eaton MSAA66166 is a 63A, 10kA, C-curve, 3-pole miniature circuit breaker (MCB) designed for use in Eaton's Memshield 3 (MS3) distribution boards and panel systems. It is a thermal-magnetic circuit breaker that provides overload and short-circuit protection for three-phase electrical circuits in commercial and industrial installations. The "C" curve indicates its instantaneous tripping characteristic, making it suitable for general-purpose applications with moderate inrush currents, such as lighting circuits, sockets, and control circuits.