Automatic insurance (miniature circuit cutters, MCBs) used everywhere with electrical installation is a circuit element that protects the installation and electrical devices connected to the installation against overflows and short circuits. Automatic fuses detect this condition in case of excessive current or short circuit in the electrical installation and cut the electrical current. In case of such an error, the process of re -commissioning the automatic insurance that cuts the electrical current is manually or by the Sigma Automatic Insurance Re -Settlement Accessory.

How to select Sigma Automatic Insurance?

Automatic Insurance; polar numbers, commemoration currents, short -circuit cutting capacities and opening characteristics. The commemoration current of automatic insurance is expected to be equal or large to the current flowing current to which the automatic insurance is connected. Short -circuit cutting capacities should be greater than the expected short circuit current at the point where the automatic insurance is connected. In the event of a short circuit compared to automatic insurance opening characteristics, curve B (type B) fuses between 3 to 5 times the nominal current, C curve (C type) fuses between 5 and 10 times the nominal current, and the D -Type D type (D) fuses open the circuit between 10 and 20 times the nominal current. Type B fuses are used in houses and workplaces where resistive loads are predominant, lighting, sockets, heaters, PLC circuits. C type fuses are used in the protection of devices such as transformers, floralsan lamps, air conditioning, refrigerator, Xray devices, UPS uninterrupted power systems in enterprises with inductive loads. D -type fuses are used in the protection of engines, point machines, welding machines, sodium vapor lamps in which very high currents are taken at the time of entering.

Why Sigma Automatic Insurance Be Used?

The Sigma Automatic Insurance, which is produced in accordance with TS EN and European standards, offers the user the user with a wide range of products up to 125A with 3A, 6ka, 10ka, 16ka cutting capacity. Sigma Automatic Insurance has a much lower loss of power than the maximum power loss values ​​of TS. It is produced for use in high temperatures up to 60 degrees. 3KA, 6KA and 10KA short circuit current cutting capacity Sigma Automatic Insurance RoHS certificate, 10ka Sigma Automatic Insurance is produced in the Sigma factory with TUV approved. All plastic parts of Sigma automatic fuses are made of V0 fireproof material. It also has high mechanical and electrical life. Sigma Automatic fuses are mounted on the 35mm DIN rail in home and workplaces, insurance boxes and electrical panels. In addition, Sigma DC automatic insurances, which are specially produced for the protection of devices that work with DC correct current, are used for applications such as solar energy systems, control systems, uninterrupted power supply UPS, battery and Datacenter.