Unsealed SPST Relay DC 24V 30A 2.5KV For Auto Welding Machine

30A Power Relay Description:

New energy products, like electric vehicles, must be a trend in the next few days. So more and more fast-charging stations are made and satisfy the need for electric cars power-charging.NB90 series relay is specially applied to the charging point. It is a high switching capacity for contacts, is a dust-proof or sealed type option, and is environmentally friendly.

Principle of Power Relay:

The working principle of the power relay is that when a certain voltage or current is applied to both ends of the power relay coil, the magnetic flux generated by the coil passes through the magnetic circuit composed of the iron core, the yoke, the armature and the working air gap of the magnetic circuit. Under the action of the magnetic field, the armature Attract to the pole surface of the iron core, thereby pushing the normally closed contact of the contact to open, and the normally open contact to close; when the voltage or current at both ends of the coil is less than a certain value when the mechanical reaction force is greater than the electromagnetic suction force, the armature returns to the initial state, normally open contact is disconnected and the normally closed contact is connected.

Power Relay Features:

The power relay has the advantages of fast action, stable operation, long service life, and small size. Widely used in power protection, automation, motion, remote control, measurement, and communication devices. Content statement: This article is reprinted from other sources. The purpose of reprinting is to convey more information. It does not mean that Easymail agrees with its views and is responsible for its authenticity. It is only used for learning and communication purposes.

30A Power Relay Features:

1. 2500VAC for dielectric withstand voltage between contact and coil

2. Class F for coil insulation grade

3. Sealed-type or flux-resistance

4. 1 form A/B/C available

5. 900mW or 600mW for option

6. TUV/CQC/UL certification

What are the uses of relays:

(1) Isolation between input and output circuits;

(2) Signal conversion;

(3) Increase the output circuit;

(4) Repeat signal;

(5) Switching different voltage or current loads;

(6) Keep the output signal;

(7) Latching circuit;

(8) Provide remote control

The relay has the following functions:

1, Expand the scope of control. For example, when the control signal of a multi-contact relay reaches a certain value, it can switch, break, and connect multiple circuits at the same time according to the different forms of the contact group.

2, Zoom in. For example, sensitive relays, intermediate relays, etc., can control large-power circuits with a very small control amount.

3, Integrated signal. For example, when multiple control signals are input into a multi-winding relay in a prescribed form, they will be compared and integrated to achieve a predetermined control effect.

4, Automatic, remote control, monitoring. For example, the relay on the automatic device, together with other electrical appliances, can form a program control circuit to realize automatic operation.

30A Power Relay Specification:

wiring diagram