Correct use of relay technical parameters
Correct use of relay technical parameters
1, the choice of contact load
Contact load refers to the bearing capacity of the contacts. The contacts of the relay can withstand a certain voltage and current during switching. Therefore, when using a relay, it should be considered that the voltage applied to the contacts and the current passing through the contacts cannot exceed the contact load capacity of the relay. For example, a relay with a contact load of 28V (DC) × 10A indicates that the relay contact can only work on a circuit with a DC voltage of 28V. The contact current is 10A, which exceeds 28V or 10A, which will affect the normal use of the relay. Even burned contacts.
2, the choice of relay coil power supply
This refers to whether the relay coil uses direct current (DC) or alternating current (AC). In general, beginners use electronic circuits in electronic production activities, and electronic circuits are often powered by DC power supplies. Therefore, it is necessary to use relays in which the coil is a DC voltage.
3, the choice of relay rated operating voltage
The rated operating voltage of the relay is the most important technical parameter of the relay. When using relays, the operating voltage of the circuit where the relay coil is located should be considered first. The rated operating voltage of the relay should be equal to the operating voltage of the circuit. The working voltage of the general circuit is 0.86 of the rated working voltage of the relay. Note that the workpiece voltage of the circuit must not exceed the rated working voltage of the relay, otherwise the relay coil is easily burned. In addition, some integrated circuits, such as the NE555 circuit, can directly drive relays. However, some integrated circuits, such as the COMS circuit, have small output currents and need to add a transistor amplification circuit to drive the relay. This should take into account that the transistor output current should be greater than The rated operating current of the relay.
Modern Magnetic Track Lighting consist of aluminum profiles with integrated electric wires.The voltage inside the track is 48v ,safety.So DC48V magnetic track lighting system can also be used in places within easy reach .Available accessories and angle connectors allow you to create complex systems not only on the ceiling .
Magnetic track lighting is more and more popular on the market.But how to choose the thickness of magnetic track rail?
Must be thick enough.
This led magnet rail from production to transportation to installation and then to install the magnetic track light, must withstand many collisions and pressure, if your led track rail is only 1.2 or 1mm, has not yet been installed to deformation, installation can not conduct, these are generally used in party A price engineering or cheat you online shop. Have you ever seen a rail bend like that in your hand?
If too thin, transportation is the most easy to be deformation, conductive article easy to fall off, installed in the ceiling to extrusion deformation, which will influence the safe use of lamps .The greater risk, because of the deformation, the Magnetic Track Light not to live at the bottom of the iron absorption.Magnetic suction screens card is unstable, will be easy to spend down from ceiling to people, this is very big security hidden danger
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There are 1.4mm, 1.5mm, 1.6mm, 1.8mm, 2.0mm,2.2mm thickness on the market.Normally enough material 2.0 can be used at ease, is more reliable quality.
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