WCT 16A 4P 4NO Contactor
Working principleThe working principle of the contactor: Upon energization, the circuit with current will create a magnetic field and generate sufficient magnetic adhesion to overcome counterforce, close armature and connect the contacts.
When the coil voltage dies out or reduces to a certain value(i.e. at the state of voltage release), for the flux generated at the end face of the armature decreases, the magnetic adhesion becomes weaker than the counterforce generated by the reaction spring, contact spring, etc.
Under the counterforce, the armature will be released and free from the field yoke, and then the contacts will be disconnected.
|Rating (In) AC7A||Control voltage (VAC)(50Hz)||Contact||Width in 9 mm modules|
|Voltage rating (Ue) 1P, 2P||250VAC|
|Frequency||50Hz or 60Hz|
|Maximum number of switching operation a day||100|
|Insulation voltage (Ui)||500VAC|
|Rated impulse withstand voltage(Uimp)||2.5KV(4KV for 12/24/48VAC)|
|Degree of protection||Device only||IP20|
|Device in modular enclosure||IP40|
|Tropicalization (IEC 60068-1)||Treatment 2(relative humidity 95% at 55°C)|
|ELSV compliance(Extra Low Safety Voltage) for 12/24/48vac versions|
|The product control conforms to the SELV(safety extra low voltage) requirements|
|Raring(In)||Control voltage (VAC)(50Hz)||Consumption||Max.power|