ELECTROMAGNETIC RELAY FOR LOW VOLTAGE ELECTRIC POWER SWITCH Russian patent published in 2007 - IPC H01H71/74 

FIELD: electric engineering.

SUBSTANCE: electromagnetic relay with adjustable disabling threshold for low voltage switch contains magnetic circuit, which includes immobile section, containing immobile element, made of ferromagnetic material, core and at least one coil with winding, and mobile section, which has mobile plate, made of ferromagnetic material and positioned so that is facing, at least partially, the immobile element, while coil is positioned between mobile plate and immobile element. Mobile plate is functionally connected to means for controlling disabling threshold. Mobile plate and/or immobile element are made in form of profiled body, which allows setting of disabling threshold by means of affecting the means due to simultaneous alteration of gap between mobile plate and immobile element, and also magnetic link between mobile plate and core.

EFFECT: increased reliability of relay operation and expanded spectrum of disabling threshold adjustment.

2 cl, 5 dwg