SZ203-C16 circuit breaker, 3P, characteristic C, 16A, 6kA, AC 2CDS253025R0164

Overcurrent circuit breaker from the S203-C16 series is a reliable protection for electrical installations against overloads and short circuits. Designed to operate in alternating current (AC) circuits, it offers effective protection for both installers and end-users. The three-pole (3P) design allows for the protection of the entire circuit, and the C characteristic ensures an appropriate response to sudden current surges, typical for devices with motors or other loads with high inrush current.

This circuit breaker, with a rated current of 16A and a short-circuit interrupting capacity of 6kA, is ideal for use in residential and commercial buildings. It provides protection against the effects of overloads, which can lead to overheating of wires and fire, as well as against short circuits, which can damage electrical equipment. The width of 3 modules facilitates mounting on a DIN rail in a distribution box.

Construction and mounting

The S203-C16 circuit breaker is characterized by a solid construction and high quality workmanship. Mounting is done on a standard DIN rail, which significantly speeds up installation. Compact dimensions (installation depth 69 mm) allow for installation even in limited spaces. It is designed to operate in temperatures from -25°C to 55°C, making it a universal solution for various environmental conditions. The ability to connect wires with a cross-section from 0.75 mm² to 35 mm² (solid) or from 0.75 mm² to 25 mm² (stranded) provides flexibility in choosing the supply wires. The IP20 degree of protection guarantees protection against accidental contact and contamination.

Application and compliance with standards

The S203-C16 circuit breaker meets the requirements of overvoltage category III and pollution degree 2, which means that it can be used in most standard electrical installations. The rated insulation voltage Ui is 440V, and the rated impulse withstand voltage Uimp is 4kV – these parameters ensure the safe operation of the device in various voltage conditions. The energy limitation class is 3, which confirms its ability to suppress short-circuit energy. Compliance with EN 60898 standard guarantees the safety and reliability of the device. The possibility of additional equipment allows you to adapt the circuit breaker to specific installation needs.