A contactor is an electrical device in the form of an electrically controlled switch, where this device can control the flow of electric current with large power. The thing that differentiates a contactor from a switch is that the contactor is operated by a low-power control circuit, so it is more energy efficient and safe to use.
The function of the contactor is to disconnect and connect electric current electrically.
The way this contractor works is by electromagnetic induction in a coil of conductor in the form of a copper coil, which is usually called a coil. When the coil is given an electric current, it will create a magnetic field, which will cause the NO (normally open) auxiliary contact to close and the NC (normally closed) auxiliary contact to open.
In contactors, there are two terms: moving contact and fixed contact. When the electric current flowing to the coil is turned off, the magnetic field will disappear. However, because the coil is equipped with a spring, the contact will reopen automatically.If you are looking for the best quality contactor, use Schneider Electric's contactor.
Schneider Electric has 4 types of contactors that can be used according to your needs, namely TeSys Deca, TeSys Giga, TeSys K, and Easy TeSys.
Schneider Electric Contactor Characteristics:
- TeSys Deca Contactor Schneider Electric
- Larger size, stronger, and has replaceable AC coils
- Complete circuits for a wide range of applications, such as: standard or inverting contactors, star/delta, with auto transformers, etc., controlled via AC, DC, as well as low consumption DC control circuits.
- Connectors: Multi-standard screw, EverLink terminal block, spring terminal, ring type connection
- Ready for harsh environments
- Easier and safer direct installation between contactor and circuit breaker, due to EverLink terminal blocks (from 40 to 65 A)
- TeSys Giga Contactor Schneider Electric
- Diagnosis prevents 90% of unexpected downtime
- Full-scale protection, which reduces recovery time after a trip by 50%
- Modularity that allows faster replacement in 10 minutes
- High performance and compact design, with faster and more flexible machine integration
- TeSys Giga ensures high performance in a compact design with faster and more flexible machine integration
- TeSys K Contactor Schneider Electric
- Simpler and more compact size. The AC coil is installed inside the device
- Complete series of mini contactors, up to 16 A for motor control (AC3/AC3E) and 20A for resistive load control (AC1).
- Has maximum protection with TeSys Deca circuit breakers and TeSys LR2K thermal breaker
- Integrated NO or NC support contacts
- Easy TeSys Contactor Schneider Electric
- Available up to 32A, 20HP/480VAC, suitable for light duty applications
- Panel and DIN rail mounting options
- Short circuit current rating up to 35kA with breaker
- Busbar connectors and electrical contactors for manual motor controllers
