ABB S203-D16 Miniature Circuit Breaker, D-Curve, 16 A, 3-Pole, 6 kA, 230/400 V AC 2CDS253001R0161

With a rated short-circuit breaking capacity of 6 kA and a D tripping characteristic, the ABB S203-D16 handles high inrush currents reliably, making it ideal for industrial loads like motors and transformers.

Overview

The ABB S203-D16 is a 3-pole miniature circuit breaker (MCB) from the S200 series, rated for 16 A and 230/400 V AC. It protects circuits against overload and short-circuit, with screw terminals accepting up to 35 mm² rigid conductors. Designed for DIN rail mounting (TH35-7.5), it offers 20,000 mechanical and 10,000 electrical operating cycles.

What stands out

• D tripping characteristic for high inrush current applications
• 3-pole design for three-phase circuits
• 6 kA breaking capacity for robust short-circuit protection
• Wide operating temperature range from -25 to +55 °C
• Energy limiting class 3 for enhanced safety

Technical details

• Rated current: 16 A
• Number of poles: 3
• Tripping characteristic: D
• Rated breaking capacity: 6 kA
• Rated voltage: 230/400 V AC
• Frequency: 50/60 Hz
• Terminal capacity: 35 mm² rigid
• Mounting: DIN rail TH35-7.5
• Degree of protection: IP20 (terminals), IP40 (with enclosure)
• Operating temperature: -25 to +55 °C
• Mechanical endurance: 20,000 cycles
• Electrical endurance: 10,000 cycles
• Power loss: 7.5 W
• Tightening torque: 2.8 N·m

Our verdict

A dependable MCB for demanding industrial environments, offering precise protection and long service life.