New Telecommunication 3NO 1NC 25A Household 4P AC Magnetic
Contactor
Features
WCT series household AC contactors are suitable for controlling
household appliances & similar usages low micro-load, also
controlling household motors loading, whose controlling power shall
be reduced, The products are used for family , hotel , apartment
etc. places, And, it can be realized automatic function.
Advantage
* Convenient installation, volume reduction 70%.
* Energy consumption decreased by 75%.
* Compared with the traditional contactor, ultra quiet, less than
15dB, no worries.
Technical data
| Power circuit |
Voltage Rating(Ue) 1P, 2P | 250VAC |
3P, 4P | 400VAC |
Endurance(O-C) |
Electrical | 100000 cycles |
Maximum number of switching operation a day | 100 |
Additional characteristics |
Insulation voltage(Ui) | 500VAC |
Pollution degree | 2 |
Rated impulse withstand voltage(Uimp) | 2.5kV(4 kV for 12/24/48V AC) |
Degree of protection
(IEC 60529) | Device only | IP20 |
Device in modular enclosure | IP40 |
Tropicalization (IEC 60068-1) | Treatment 2(relative humidity 95% at 55℃) |
| 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 |
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.
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.
Dimension
Detail
