ABB S530965 - Thermal-magnetic circuit breaker S203 D40 40A 3P 6kA curve D

ABB S530965 - Thermal-magnetic circuit breaker S203 D40 40A 3P 6kA D-curve

The ABB S530965 thermal-magnetic circuit breaker S203 D40 series offers comprehensive protection against overloads and short circuits in three-phase systems, perfect for industrial applications requiring high load capacity and robustness. With its D curve and 40A rated current on 3 poles, this device guarantees high performance and maximum safety for three-phase loads with high inrush currents.

Main features:

• Type: Circuit breaker
• Brand: ABB
• Series: S203
• Model: D40
• Poles: 3P (three-phase)
• Current rating: 40 Amps (A) per pole
• Interrupting power: 6 Kiloampere (kA)
• Interrupting curve: D (suitable for loads with high inrush currents, such as electric motors, transformers and industrial furnaces)
• Order code: S530965

• Protects electrical circuits from overloading, interrupting current flow before cables overheat and cause fires.
• Protects against short circuits, quickly disconnecting the power supply in the event of sudden faults that cause an abrupt current surge.
• Curve D: offers a longer trip delay than curves B and C, allowing high inrush currents to pass through when starting electric motors or other inductive loads, without causing the breaker to accidentally trip.
• Compact design and easy DIN-rail installation.
• Certifications: CEI-EN 60898-1, CEI-EN 60947-2, UL1077 and CSA 22.2 No. 235 (except 4.5kA version).
• Compatible with DDA 200 series differential blocks for additional protection against leakage currents.

• Three-phase electric motors with high inrush currents
• Three-phase transformers
• Industrial furnaces
• Three-phase air conditioning systems
• Heavy industrial machinery
• Other three-phase loads with high inrush currents