Detailed Description

The ABB SJ203T (2TAZ144300R0104) is a 3-pole Miniature Circuit Breaker (MCB) designed to protect three-phase electrical circuits against overloads and short-circuits. With a 10A rated current and C-curve tripping characteristic, this MCB is ideal for circuits with moderate inrush currents such as lighting, small appliances, and three-phase distribution panels in residential, commercial, and light industrial installations.

It features a 3kA breaking capacity, ensuring rapid disconnection in the event of a short circuit, protecting both wiring and connected equipment. The compact, DIN-rail mountable design allows easy installation, while the thermal–magnetic mechanism ensures long-lasting reliability. The 3-pole configuration (L1, L2, L3) provides full-phase protection in three-phase systems.

Key Features

• Model: ABB SJ203T

• Part Number: 2TAZ144300R0104

• Poles: 3-Pole (L1, L2, L3)

• Rated Current: 10A

• Tripping Curve: C-Curve

• Breaking Capacity: 3kA

• Voltage Rating: 230/400V AC

• Compact, DIN-rail mountable design

• Thermal–magnetic protection for overloads and short-circuits

• Suitable for residential, commercial, and light industrial circuits

• Compliant with IEC/EN 60898 standards