Product function

JPXC-H270 is a commonly used electrical appliance in automatic control systems. It is used to connect and disconnect circuits, to issue control commands and reflect the status of equipment to form automatic control and remote control circuits.

Scope of application

JPXC-H270 type is suitable for monorail locomotive signal or counting circuit.

Applicable environment

a) Ambient temperature: -5℃~+40℃;

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

c) Air pressure: not less than 70kPa (equivalent to an altitude below 3000m);

d) Vibration: the vibration frequency is not more than 15Hz, and the amplitude is not more than 0.45mm;

e) Working position: horizontal;

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

test method

Standard test conditions

Temperature: +15℃~+45℃;

Relative humidity: 45%～75%

Air pressure: 86kPa~106kPa

Requirements for test satellites, meters, and power supplies

The accuracy of measuring appearance and installation dimensions should not be less than 0.05mm; the accuracy of feeler gauge should not be less than 2; the measurement error of force measurement should not be more than 2%.

The accuracy of the DC voltmeter and ammeter used for the test should not be less than 0.5, and the accuracy of the AC (50Hz) voltmeter and ammeter should not be less than 1.

The power supply voltage should remain stable, and its fluctuation range should not exceed 5%. The DC power supply should be a DC generator, battery or AC full-wave rectifier power supply (except for special regulations, the ripple factor should not be greater than 5%). The waveform of the AC power supply should be a sine wave with a frequency of 50 Hz.

Mechanical properties

Number of contact groups: 8QH;

Identification pin number: 32, 55;

Contact gap: not less than 1.3mm;

Pallet gap: not less than 0.35mm;

Contact pressure: the moving and closing contact is not less than 250mN;

The movable disconnection point is not less than 150mN;

Contact uniformity error: not more than 0.20mm.

Electrical characteristics

Electrical characteristics (at +20℃)

Coil resistance: 135 (1±10%) Q×2

The coils are connected in series, connect 2, 3, use 1, 4;

Rated value: DC24V;

Magnetizing value: DC64V;

Working value: not more than DC7V;

Release value: not less than DC2.1V;

Reverse non-suction voltage: greater than DC200V;

Contact resistance: not more than 0.05Ω.

maintenance

a) Keep the relay and socket clean;

b) Observe whether the relay operation status is normal;

c) The relay should be replaced in time for abnormal operating conditions and serious contact burnout.

Regular maintenance

In the electrical life and life management cycle of the relay, the maintenance cycle of the stepless relay and the rectifier relay should be five years;

The overhaul period of stepless enhanced contact relays, poled relays and biased pole relays should be three years;

The overhaul period of stepped reinforced contact relays should be one year.

Appearance inspection and performance inspection should be carried out after overhaul.

Insulation withstand voltage

Under the standard atmospheric conditions of the test, the insulation resistance of the relay should not be less than 100MΩ.

Under the condition that the air pressure is not lower than 86kPa (equivalent to the altitude below 1000m), the insulation withstand voltage of the relay should be able to withstand AC sine wave 50Hz, 2000V rms voltage, there should be no breakdown flashover after 1min, the voltage when repeating the test Should be 75% of the original test voltage value.

Unpacking inspection

a) The whole machine should be in good condition, and the steel wire clamp should not be loose;

b) Type cover type hole position and number should be correct (as shown in Table 3

c) There should be no foreign objects inside.

Product electrical life

The relay contacts are connected to DC24V1A resistive load; its electrical life is 1×106 times.

After-sales service

From the date of delivery, the warranty period of infinite relays, rectifier relays (the warranty period of electronic components is one year), polarized relays and biased pole relays is 1 year, and the warranty period of infinitely enhanced contact relays and polarized enhanced contact relays Provide free maintenance services for the company during the one-year warranty period; for relays that exceed the warranty period, the company will provide lifetime technical support based on the actual situation and the cost of maintenance items, creating conditions for users to master the use and maintenance methods of the relay.

a) Bad quality or damage due to transportation, storage, improper use, etc., and unsealed relays are not covered by the company's warranty;

b) If the user violates the technical requirements of this manual or fails to perform normal maintenance according to the maintenance manual during installation and use, the company does not assume any responsibility for the damage;

c) During the company's warranty period, our company's products and parts are unpacked without the company's authorization for quality problems, and the company will not bear any responsibilities arising therefrom;

d) Non-our company’s parts and components that are assembled on the company’s products without the company’s consent cause product quality problems, and the company does not bear any responsibilities arising therefrom.