SZ203-C40 overcurrent circuit breaker, 3P, C characteristic, 40A, 6kA, AC 2CDS253025R0404

Overcurrent circuit breaker from the S203-C40 series is a reliable protection for electrical installations against overloads and short circuits. Designed with safety and durability in mind, it will work well in both home and commercial installations. This three-pole circuit breaker with a rated current of 40A and a short-circuit breaking capacity of 6kA provides effective protection for electrical circuits.

Characteristics and application

The circuit breaker is characterized by a C characteristic, which means that it allows for short-term overloads, typical for devices with induction motors (e.g., refrigerators, washing machines). This avoids unnecessary tripping of the circuit when starting such devices. The rated impulse voltage withstand of 4kV guarantees resistance to overvoltage. Mounting is on a DIN rail, and a width of 3 modules allows for efficient use of space in the distribution board. The cross-section of the wires that can be connected to the circuit breaker is from 0.75 mm² to 35 mm² for solid wires and from 0.75 mm² to 25 mm² for stranded wires – this provides great flexibility when choosing the appropriate cables.

Advantages and benefits

• Effective protection: Provides protection against overload and short circuit, protecting the electrical installation and connected devices.
• Versatility: C characteristic makes it ideal for circuits with devices with high starting current – it does not switch off with every refrigerator or washing machine start.
• High quality workmanship: Made of durable materials, guarantees long life and reliable operation.
• Easy installation: Mounting on a DIN rail is quick and easy, which translates into time savings during installation.
• Compact dimensions: A width of 3 modules allows for optimal use of space in the distribution board.
• Wide operating temperature range: The ability to operate in a temperature range from -25°C to 55°C makes it suitable for various environmental conditions.
• Compliance with standards: Meets the required safety standards (energy limitation class 3, overvoltage category 3), which ensures reliable operation and compliance with regulations.
• Expandability: The possibility of using additional equipment increases the functionality of the circuit breaker and adapts it to individual installation needs.

This circuit breaker is a solid choice for both professional installers looking for a reliable component for their projects and end-users who care about the safety of their electrical installation.