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)
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.