Detailed Description

The ABB SJ203T (2TAZ144300R0164) is a 3-pole Miniature Circuit Breaker (MCB) designed to provide robust protection for electrical circuits against overload and short-circuit conditions. With a 16A rated current and C-curve tripping characteristic, this breaker is suitable for circuits with moderate inrush currents such as lighting, small motors, and three-phase distribution panels.

Featuring a 3kA breaking capacity, the SJ203T ensures rapid disconnection during short-circuit events, protecting both equipment and wiring. Its compact modular design allows easy DIN-rail installation, while the thermal–magnetic mechanism guarantees long-term reliability and safe operation. The 3-pole configuration (L1, L2, L3) provides comprehensive protection for three-phase systems.

Key Features

• Model: ABB SJ203T

• Part Number: 2TAZ144300R0164

• Poles: 3-Pole (L1, L2, L3)

• Rated Current: 16A

• Tripping Curve: C-Curve

• Breaking Capacity: 3kA

• Voltage Rating: 230/400V AC

• Compact DIN-rail mountable design

• Thermal–magnetic protection for overload and short-circuit

• Suitable for residential, commercial, and light industrial circuits

• Compliant with IEC/EN 60898 standards