WCT Din Rail Mounted Contactor(also called CT contactor, household Contactor), mainly used in power system of AC 50Hz/60Hz, rated voltage to 400V, rated current to 100A, at AC-1, AC-7a use categories (no sense or low sense load, resistance furnace, household appliances and similar low load) for long distance, switch and control circuit for household, can also be used to control the motor load. Household Contactor is not used for breaking short circuit current, so the suitable short-circuit protection equipment (such as miniature circuit breaker) should be selected when using. It meets the standard IEC61095, GB17885.
WCT Din Rail Mounted Contactor can extend auxiliary control, protection and indication function.
The CT Contactor is a control appliance for long distance making and breaking no sense or low sense load, resistance furnace, household appliances and similar low load, household motor and so on.
WCT Household contactor is mainly used in families, hotels, apartments, office buildings, public buildings, shopping centers, gymnasiums and other places, to achieve automatic control function.

1. Modular control electrical appliances, novel structure, small size.
2. Rail installation, modular size, safe use, can be combined with the miniature circuit breaker installed in the control lighting box.
3. Use high-quality insulation materials, greatly improve the security.
4. Beautiful appearance, with working status indicator window.
5. No noise, apply to hotels, hospitals and other places

Ambient air temperature: the upper limit of ambient air temperature is +60℃, the lower limit is -5℃. When the Household Contactor is installed in the distribution box, the two sides must be fitted with spacers to dissipate heat.
Altitude: The altitude of the installation site is not more than 2000m.
Atmospheric conditions: Installation temperature is +60℃, the relative humidity of the air is not more than 50%, at low temperature, relative humidity can allow higher. For example, up to 90% at +20℃. Special measures should be taken for the occasionally produced condensation due to temperature changes.
Pollution level: Class Ⅱ.
Installation category: Ⅱ.
Installation: TH35-7.5 rail installation. There is no significant shock and vibration at the installation site, vertical installation, the inclination of installation surface and any direction is not more than 5°.

Quota Work System
a) Eight-hour day: This work is the basic working system, conventional free air thermal current Ith of the contactor is determined by the work system.
b) Intermittent periodic duty-type: The operating frequency of the CT Contactor under this work system is 30 times/h, the load factor is 40%.

Action (Operation) Condition
In the ambient air temperature of -5℃~+60℃, apply the rated control supply voltage Us to the Din Rail Mounted Contactor attracting the coil, when it is heated to a steady state, the contactor should be reliably closed at any voltage within the range of (85%~110%) Us; Drop out and break between the 75% and 20% rated control supply voltage Us.

Product Life
Mechanical life: Din Rail Mounted Contactor 's mechanical life is not less than 1 million times.
Electrical life: Din Rail Mounted Contactor 's electrical life is not less than 100,000 times.

Note: When the Household Contactor is installed in the distribution box, the spacers must be assembled on both sides to facilitate the heat dissipation.

When the coil is energized, the coil current generates a magnetic field, generates sufficient electromagnetic attraction to overcome the reaction force, and pulls in the armature so that the contact is turned on. When the coil voltage disappears or the coil voltage is low to a certain value, the so-called drop out voltage. As the magnetic flux generated by the end of the armature is reduced, the electromagnetic attraction begins to be less than the reaction force generated by the reaction spring, the contact spring, and so on. The armature is released under the action of the reaction force, leaving the yoke, and the contact is broken.

Selection of 50Hz Din Rail Mounted Contactor

WCT Household  Contactor

WCT Manual Operation Household Contactor 50Hz<

	Signal Class	Control Class
Accessory	WCTs	WCTs
Type	Signal contact	Pulse / Continuous signal control
Ffunction	● Used to indicate the "ON" or "OFF" of the contactor’s main contact	● The Household Contactor connecting this accessory can be controlled by two types of commands; ○ Pulse command is used for local control (Input T) ○ Continuous signal command is used for centralized control (Input X) ○ The last received command has priority
Wiring Diagram
Installation	● Installed on the right side of WCT	● Installed on the left side of the WCT via the yellow clip
Use	-	● After the power supply circuit is broken: ○ <1s: Keep the initial state ○ ≥5s: Reset ○ Manual action on X or T is restart ● Minimum pulse duration: 250ms

Technical Specifications

CT Contactor-50Hz

WCT Manual Operation Contactor-50Hz

Before installation, relevant technical data (such as rated voltage, current, operating frequency, etc.) should be checked.
During the installation, should be installed according to the specified conditions, the wiring terminal A1 of Household Contactor coil should be upwards, which is in accordance with people's visual habit.
The Household Contactor with metal mounting baseplate should be properly grounded.
The terminal screws should be tightened, check the wiring is correct, the main contact should not be charged, the first to attract the coil power on-off several times, the test action is reliable before they can be put into use.
When in use, if there is abnormal noise, there may be dirt on the pole face, please wipe the pole face.
In use, the components of the product should be checked regularly, the movable parts should not be jammed, the fasteners should not be loosened, and the parts should be replaced if damaged.

WCT Din Rail Mounted Contactor can be used in a wide range of lighting line control, public hot water control, geothermal power supply control, automatic roller control, small motor control and other occasions. In the guesthouse, hotel, station, hospital, office building and other large public places, which can effectively control all kinds of power equipment, can be used as the best terminal execution component of intelligent building system.
Application Situation
Bank, industry and commerce, taxation, telecommunications, hospitals, post, finance bureau, labor bureau, personnel bureau, social insurance bureau, one-stop service hall, insurance, vehicle management, traffic management bureau, consulate, immigration, customs, inspection and quarantine bureau, center for disease control and prevention, technical supervision, product customer service center and other window service industries.。

1. Before installation, check whether the Din Rail Mounted Contactor is in accordance with the use range and the normal working conditions.
2. The CT Contactor wiring should be correct.
3. The Household Contactor in the wiring need to tighten the wiring screw.。