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E16DU6.3

The ABB E16DU6.3 is a three-phase (3P), thermal-magnetic circuit breaker from ABB's E16 series (also known as the DS260 series or Form 1a), specifically designed for motor circuit protection. It combines the functions of a disconnect switch, a thermal overload relay, and a magnetic short-circuit protector in a single, compact unit.

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Technical Parameters Parameter Specification Series ABB E16 / DS260 / Form 1a Series Product Type 3-Pole, Manual Motor Starter / Motor Protection Circuit Breaker (MPCB) Order Code E16DU6.3 Number of Poles 3-Pole (3P) Rated Operational Current (Ie) Up to 16A (Frame rating). Thermal Overload Setting Range (Ir) Adjustable: 0.10 - 6.3 A (Continuously adjustable via dial). Trip Class Class 10 (Standard for motor protection). Magnetic Short-Circuit Setting (Im) Fixed, typically at 12 x Ir or a specific high value (e.g., ~100A). Short-Circuit Breaking Capacity (Icu) Typically 6 kA or 10 kA at 400V AC. Rated Operational Voltage (Ue) 690V AC Control Method Manual (ON/OFF handle). No coil for remote operation. Auxiliary Contacts None as standard. Optional auxiliary contact blocks (e.g., 1NO+1NC) can usually be added. Phase Loss Sensitivity Yes (Inherent in the 3-pole thermal design). Ambient Temperature Compensation Yes (integrated). Mounting Snap-on mounting on 35mm DIN Rail. Connection Terminals Screw terminals. Standards Compliance IEC/EN 60947-1, IEC/EN 60947-2, IEC/EN 60947-4-1 (as a combination starter). Motor Power Rating At 400V AC, 3-phase: Approx. 3 kW (4 HP) (Based on 6.3A setting). Ambient Temperature -25°C to +60°C (Operation)