Product Usage

the JJJC3 AC enhanced contact relay is used as a power control relay in the power supply screen of the small station.

Applicable environment

Applicable environment the applicable environment of the relay is:

A) Ambient temperature: -40℃~+60℃;

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.

Features

1. the relay is an AC 220V heavy spring force electromagnetic relay with reinforced contacts.

2. the relay magnetic system is a clap-on AC magnetic system, which is composed of an iron core, a coil and an armature.

3. the use of silver-silver oxidation requires contacts, which has the characteristics of strong anti-adhesion and low contact resistance.

4. the relay contact system consists of two parts: ordinary contacts and reinforced contacts. There are two groups of moving on and off ordinary contacts; the two groups of moving on and off reinforced contacts, the structure of the ordinary contacts is the same as that of the non-polar relay, and the reinforced contacts are specially designed large contacts. Power contacts.

Mechanical properties

Number of contact groups: 2QJ; 2QH

Identification pin number: 31, 43;

Ordinary contact gap: not less than 1.3mm;

Strengthen the contact gap: not less than 5mm;

Ordinary pallet gap: not less than 0.35mm;

Reinforce the gap of the support plate: not less than 0.1-0.3mm;

Ordinary contact pressure: the dynamic contact point is not less than 250mN; the dynamic disconnection point is not less than 150mN;

Strengthen the contact pressure: the dynamic contact point is not less than 600mN; the dynamic disconnection point is not less than 300mN;

Contact uniformity error: not more than 0.20mm.

Electrical characteristics

Rated value: AC220V

Release value: not less than AC 70V

Working value: not more than AC 175V

Coil resistance: 185 (1±10%) Ω

Single coil, use 1, 2

Time characteristics

the pull-in time is not more than 0.05S, and the return time is not more than 0.05S.

Dimensions

Relay: 165mm49mm163mm (lengthwidthheight)

Socket: 157mm48mm22mm (lengthwidthheight)

Installation method

Relay I socket with power supply screen, the relay is equipped with a locking device on the upper end of the socket, and the socket is installed on the relay frame. after the relay is inserted into the socket, the relay can be locked with a card board and locked with a hanging spring.

the identification pin numbers of JJJC3 type relays are 31 and 43.

Executive standard

GB/T 7417-2010 "Railway Signal AX Series Relay"

Product structure

the electromagnetic system of the stepless enhanced contact slow release relay is the same as that of the stepless slow release relay (JWXC-H340). the magnetic circuit system of the JWJXC-H125/80 stepless enhanced contact slow release relay adds a copper short-circuit ring to make the slow release time longer.

the contact system consists of two parts: ordinary contacts and enhanced contacts. the structure of ordinary contacts is the same as that of non-polar relays, and the reinforced contacts are specially designed high-power contacts and arc extinguishers.

Insulation withstand voltage

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

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.

Installation Precautions

1. When installing the relay, make sure that the insulation interval between the sockets is intact, the socket hanging spring is intact, and the socket identification pin is in the correct position and should not be missing.

2. Pay attention to the relative position between the relay and the socket when plugging in the relay to avoid damage to the relay or socket during plugging.

3. When repairing and replacing the relay, first remove the fixed relay spring, and then pull out the relay. Do not use excessive force or shake left and right when pulling it out, as it may damage the relay or socket.

Product electrical life

the relay contact is connected to AC24V1.5A.

Resistive load; its electrical life is 1106 times.

Faults and troubleshooting methods