Product name

AC filament conversion relay: JZSJC2 product usage

JZSJC2 AC Filament Conversion Relay is suitable for railway signal lighting circuit. When the main filament of the 12V, 25w dual-filament signal bulb is broken, the auxiliary filament will be lit through a set of movable break contacts to realize the conversion of the main and auxiliary filaments., and alarm through another set of contacts.

Applicable environment

A) Temperature: -40℃~+60℃;

B) Air pressure: not less than 70kPa (equivalent to 3000m above sea level);

C) Relative humidity: not more than 90% (temperature -25°C);

D) Vibration: frequency 5H2~2H2, displacement amplitude not greater than 1mm, frequency 22H2-50H2, acceleration amplitude not greater than 20m/s2;

E) There should be no harmful gas causing explosion hazard around, and dust-proof measures should be taken.

Mechanical properties

Contact gap: not less than 0.8mm;

Dynamic contact pressure: not less than 150mN;

Dynamic breaking contact pressure: not less than 150mN;

Contact uniformity error: not more than 0.1mm;

the joints are formed together: not less than 0.1mm.

Electrical characteristics

Rated current: 2.1AAC;

Working value: not more than 1.5AAC;

Release value: not less than 0.5AAC;

Contact resistance: no more than 0.052

Insulation resistance

the temperature of the relay and socket is 15C~35℃, the relative humidity is 45%~80%, and the insulation resistance should not be less than 100MΩ.

Insulation withstand voltage

between the coil winding and other parts of the relay, the insulation withstand voltage between each contact and the contact and the ground should be able to withstand AC sine wave 50Hz, 1000V effective value voltage for 1Min, there should be no breakdown or flashover.

Product electrical life

Wei Electric implements broken wire conversion according to the lighting circuit, 15 to 20 actions per minute, and its electrical life is not less than 3*105

Test method

Requirements for test satellites, meters, and power supplies

the accuracy of the measuring gauge should not be less than 0.02mm;

the accuracy of the feeler gauge should not be lower than level 2;

the measurement error of the dynamometer should not be greater than 2%;

the accuracy of the AC ammeter used for testing should not be lower than level 1;

the power supply voltage fluctuation range should not exceed 5%, the waveform is a sine wave, and the frequency is 50±1Hz.

Characteristic test

the electrical characteristics test circuit of the relay is shown in the figure below.