Product Details

Brief Introduction

 

For wiring of 240V soft starter, the electrical components in the cabinet are arranged in sequence, so that the main wiring is briefly not crossed, so as to facilitate the connection of copper rows. 240V soft starter is installed on the right side of the contactor is not affected by the heat of other components. Soft starter and control cabinet sidewalls and other components spacing requirements is no less than 100mm, to facilitate soft starter heat dissipation.

 

Using 240V soft starter, in addition to technology, performance, price comparison, but should also take into account the equipment site grid capacity, equipment starting load light and heavy, start the degree of frequency and other specific conditions. For pumps to start a lighter load of equipment, you can choose a simple function, lower price, easy to operate soft starter. This type of equipment according to the rated power of the motor, select the sample of the same capacity of the soft starter can meet the needs. For large fans, crushers and other heavy start load equipment, should be used to start more functions, current-limited start function, its own protection is more complete soft starter. Especially large power equipment (more than 200KW), it is best to use the start function of the full range of high-performance soft starter.

 

240V soft starter in the isolation of electrical appliances, you can choose to isolate the switch can also choose to have the isolation function of the molded case circuit breaker. Small power soft start cabinet should choose isolation switch fuse combination of knife fuse switch. Not only play a role in isolation and protection, but also reduce the cost of the project. The rated current of the isolation switch is greater than the rated current of the motor can meet the operational requirements.

 

Due to 240V soft starter in the thyristor surge Joule integral (I2t) value is limited, the choice of circuit breaker as a short-circuit protection device can not effectively protect the thyristor components. It is recommended to choose a fast fuse as a short-circuit protection device. Fast fuse can choose aR or NGT type semiconductor protection fuse. Selection of fast fuse generally do not have to do breaking capacity calibration, because the aR-type fuse rated breaking capacity of 50KA, NGT fast fuse breaking capacity of 120KA, to meet the general needs of power distribution projects. In addition, the fuse also has current limiting function, the protection of thyristor is more reliable than circuit breaker.

Mounting

 

 

Specifications