China Supplier WCT Wiring Diagram 25A Electrical AC Contactors 4 Pole
Features
AC contactor belongs to modular controlling electrical equipment,which has novelty structure,compact size ,it is DIN-RAIL for installation,size of modular,modeling artistic.use of safety,direct acting inversion.And,it can install in the distribution boards along with breakers.
Temperature: 5℃~+40℃,AVG not over within 24h+35℃
Altitude: not over 2000m.
Atmospheric conditions: RH+40℃ not over 50% under,RH can be for 90% under +20℃,In dewing,it should be taken special precautious.
Class of pollution: 2
Installation type: II
Mode of installations: TH35-7.5 types steel DIN-RAIL
IP Grade: IP20
Technical data
| WCT contactors-50Hz |
| | Raring(In) | Control voltage(V AC)(50Hz) | Consumption | Max.
power |
| AC7a | Holding | Inrush |
| 4P | 25 A | 24 | 4.6 VA | 34 VA | 1.6 W |
| 220…240 | 4.6 VA | 34 VA | 1.6 W |
Attention
First confirm whether the product voltage, current, frequency and use category meet the requirements before use;
Second connect the control circuit first for no-load operation test and then connect the load in case of no abnormality;
Third regularly tighten the terminals and remove the deposited dust;
Forth don't make the foreign matters fall into the product.
Working principle
The 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.
Dimension
Detail
Advantage
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