Residual current protection relays, one of the critical equipment of electrical installations, are protection equipment that protect living beings from electric shocks and fire hazards in case of a possible leakage current.
Sigma Residual Current Protection Relay provides holistic protection by using it with LV circuit breaker, trip coil and toroidal transformer in the residual current protection combination.
Sigma Residual Current Protection Relay
Leakage current threshold value in the range of 30mA-30A
Adjustable time delay between 50ms – 350ms
Trip time under 15ms
Less than 3VA power consumption
100,000 electrical life
5,000,000 mechanical life
Possibility of mounting on 35mm DIN rail
Test button to simulate leakage current conditions
Toroidal Transformers
Sigma Electric has a toroidal current transformer portfolio that offers appropriate product selection for all kinds of project needs.
Sigma Toroid Current Transformers according to their inner diameters;
Rectangular with dimensions of 280*115mm, 470*160mm
Can be opened in 110mm and 210mm sizes
They are produced as standard types in sizes 80mm, 110mm, 160mm, 210mm and 300mm.
