The mini contactor is a type of power contactor that is similar to the standard contactors in terms of operation but is smaller in size. It is suitable for applications where space saving is important.
A mini contactor is used for switching motors up to 5.5 kW. These miniature devices are shallower and have fewer panel depth requirements than standard power contactors. All versions of the mini contactors are available with a low-consumption AC, or DC coil.
The working principle of a mini contactor is the same as for a standard contactor. Main contacts change positions as a result of energizing the coil. Normally open main contacts switch to a normally closed state as soon as the coil is energized. When the coil is de-energized, it does the opposite action and returns to its former position.
Mini contactors are ideal for use in applications where space saving is required. They are generally used in the machine manufacturing sector where mass production is made. Mini contactors are preferred in applications such as industrial kitchens, garage doors, elevators, air conditioning systems, conveyors, pumps, and washing machines.
Advantages of mini contactors
Advantages of mini contactors are:
- Compact dimensions
- Power ratings: up to 4kW or 5.5 kW. (up to 5 or 7,5 hp)
- Lower price, cost-saving
- More mounting position options
- Lower power consumption
- Limited accessory options
- Type of connections: Screw, flat pin, soldering pin types
- Pin type models can be mounted directly on the PCB
- Less noise
- Lower heat dissipation