Circuit breaker DC 20A/C 4P VCX XYDB7-20A, DC1000V, DIN rail mounted

Product detailed description

Overcurrent circuit breaker 1000V DC, model: XYDB7 is designed to protect DC circuits as protection of cables and electrical equipment against the effects of short circuit and overload. It provides safe and easy mounting on the TH35 rail using plastic clips. Manufactured in accordance with IEC/EN 60947-2. For increased safety of use, it is equipped with a legible activation indicator. Only authorised persons should install it - disconnect power before installation. Technical specifications - rated current: 20A - characteristic: type C - rated impulse resistance: 6kA - rated voltage: 1000V DC - degree of protection: IP 20 - storage temperature: -30/+70°C - operating temperature: -30/+50°C - maximum cross-section of connecting wires: 25 mm2 - tightening torque of connecting terminals: 3Nm - possibility of connection with ridge busbars: yes What are the circuit breakers used for? When discussing the topic of overcurrent circuit breakers, it is worth noting that the full name is overcurrent circuit breakers. It is one of the elements of the electrical installation, thanks to which we can prevent electrical overload. It happens that in our home, the existing installation is overloaded, i.e. a current of higher rated power flows through the wiring in question. The main purpose of the electrical fuse is to prevent the risk of fire, because when the installation is overloaded, a relatively large amount of heat is released. Miniature circuit breakers not only protect installations from overload, but also protect the wiring from short circuits. In the event of irregularities, the circuit breaker will immediately cut off the power supply, preventing the effects of fire. Overcurrent circuit breakers can be classified in terms of the speed of operation and the current flowing through them. Type A is rarely used, being used more to protect electronic equipment, Type B is used very widely for household appliances, RTV and lighting or socket circuits, and Type C is mainly used in industrial applications, especially with high starting currents. What is the difference between a 1-phase and a 3-phase circuit breaker? Overcurrent circuit breakers are used in electrical installations and are of two types, single phase or three phase. Single-phase circuit breakers are used in single-phase circuits, that is, in homes with standard levels of energy consumption. While overcurrent circuit breakers are used in three-phase systems, i.e. where there is a need for electricity in larger quantities, depending on the size of the house, the amount of equipment in the house, time and current usage. NOTICE Due to the risk associated with possible incorrect connection of equipment, we recommend that installation is carried out by a qualified person with an electrical qualification. We are not responsible for improper wiring and any damage caused by it.