SZ201-C63 circuit breaker, 1P, C characteristic, 63A, 6kA, AC 2CDS251025R0634

Overcurrent circuit breaker SZ201-C63 is a reliable protection for electrical installations, designed for both home and commercial use. The device effectively protects circuits against overload and short circuit, ensuring safety and minimizing the risk of failure.

Protection and functionality

This single-pole circuit breaker with a rated current of 63A and a short-circuit breaking capacity of 6kA is characterized by a tripping curve of type C. This means that it is particularly well suited for protecting circuits with receivers generating inrush currents during start-up – such as motors or transformers. Characteristic C allows it to react more slowly to short current surges, therefore it tolerates starting devices with a motor well. The rated impulse withstand voltage of 4kV further increases its resistance to sudden voltage changes.

Installation and compatibility

The SZ201-C63 circuit breaker is mounted on a DIN rail, occupying a width of one module (18mm). Its installation depth is 69 mm. The possibility of connecting wires with a cross-section from 0.75 mm² to 35 mm² (solid) or from 0.75 mm² to 25 mm² (stranded) provides installation flexibility. The device operates in an ambient temperature range from -25°C to +55°C, making it suitable for most operating conditions. The degree of protection IP20 indicates protection against touching with a finger and solid objects larger than 12.5 mm.

Safety and compliance with standards

The circuit breaker meets the requirements of overvoltage category III and pollution degree 2, which guarantees its reliability in difficult environmental conditions. Energy limitation class 3 ensures effective protection of the installation against the effects of short circuits. The rated short-circuit breaking capacity Icn is 6kA at a voltage of 230V according to EN 60898. The device has a rated insulation voltage Ui of 440V and can operate in systems with a rated voltage of 230V and a frequency of 50 to 60 Hz. The possibility of expanding with additional equipment increases the functionality of the device and allows it to be adapted to individual installation needs.