Can a magnetic latching relay resist magnetic field interference?
The magnetic latching relay is a new type of relay developed in recent years and is also an automatic switch. Like other electromagnetic relays, it plays the role of automatically turning on and off the circuit. Existing magnetic latching relays usually consist of a magnetic circuit system, a contact system, a pushing part and a housing.
Existing magnetic latching relays are usually used in the electric power industry, such as in electric meters. There are interfering magnetic fields in the environment where electric meters are used, and interference from external magnetic fields can easily cause the magnetic circuit system of the magnetic latching relay to change, thereby changing the relay contact state. changes, resulting in the failure of the cost control function of the meter.
The existing technology adds a magnetic shielding structure to the outside of the magnetic latching relay to block the external strong magnetic field and attenuate the magnetic field intensity within a limited distance, thereby avoiding the interference of the strong magnetic field on the electromagnetic system and improving the strong magnetic resistance of the magnetic latching relay. Interference ability ensures the normal operation of the cost control function of the meter.
The existing anti-magnetic shields used for magnetic latching relays mostly use electrically pure iron plates, so they are heavy. This results in a significant increase in the weight of the magnetic latching relay system equipped with an anti-magnetic shield, which reduces the overall shock resistance of the relay. Therefore, , when actually installed in a smart meter, the operating performance of the magnetic latching relay system is prone to change when it is subjected to vibration; moreover, the magnetic latching relay is contained in an anti-magnetic shielding cover, which is not conducive to heat dissipation.
What is surprising is that a new type of latching relay quickly came to the market. In order to cope with this situation, IVY has launched a series of motor latching relays, also known as magnetic immunity latching relays. Compared with magnetic latching relays on the market, the main features are as follows: With 400mT/500mT Magnetic Immunity; Low Contact Resistance; Special Structure, Ultra Shock/Vibration Resistance. It can withstand magnetic fields without configuring a shielding cover, save space, and dissipate heat quickly. The main models are as follows: IM-M1002 80A single phase/IM-M1202 80A single phase; IM-M801D 60A two phase/IM-M1202D 100A two phase(PNNP)/IM-M1203D 100A two phase(PPNN); IM-M1201T 120A three phase etc. If you want to know more product details, please come to consult us via Email: ess1@ivy-metering.com
