Description

Boot from TeSys type LC1D

– With a capacity of 7.5kW (18A)
– Auxiliary contacts are built in.
– Face cover against dust and contact
– Control coils can replace each other

Detailed description

– Starting from category D, used for motor control with a capacity of up to 75 KW, AC-3
– Coils controlled by AC, DC or DC voltage consume less energy
– Integrating 2 auxiliary contacts, 1 NO and 1 NC, mechanical strength and high electrical durability – up to 20 million switching times with contactors from 9 to 38A.

Technical characteristics

Contactor or magnetic verb is a device used to control and protect the motor and loads by direct, remote impact or connection to the automatic load control circuit. Contactor allows load control with rated voltage up to 500V, rated current 600A …

Contactor can be classified as

– According to the principle of motion control: By electromagnetic attraction, pneumatic or hydraulic
– According to the source of control and operation current: AC alternating current (1 phase or 3 phase), DC direct current
– According to the number of primary and secondary I / O contacts

Basic parameters when selecting a contactor

– Coil control source: AC or DC
– The rated voltage Umm is the operating voltage of the contactor
– Uimp withstand pulse voltage
– The rated current In is the line when the contactor operates in the rated mode (rated load, rated voltage)
– Icu short-circuit current is contactor contactor withstand when short-circuit load for 1s, 3s
– Switching frequency Is the number of switching contactor in an hour: 30, 100, 120, 180, 300,600, 1200, 1500 times / hour.
– Contactor life is the number of times contactor switches are made, after that time the mechanical structures and contacts are no longer accurate so they can not be used anymore.

Select contactor for additional charge

Usually choose the contactor in addition to the rated voltage parameters, coil current source, Icu, Uimp depending on the system we choose contactor according to power (KW) recorded on the motor or according to the calculated current we can choose Ict = Idm x Kkđ (Ict: contactor rated current, Idm: load rated current, Kkđ: starting factor selected from 1,2-1,5)