In a word, it is because Bestact has a very large switching capcity. Conventional reed switches have a switching capacity of only around 50VA(resistive) at the most. Consequently they frequently suffer from contact welding – due to the electrostatic storage(capacitive) capacity of long cable runs or contact sticking the inrush current of inductive loads, which is due to insufficient repulsive force when the circuit is closed. That’s why conventional reed switches normally need contact protection circuits to prevent these faults.
In addition to the switching capacity of 240VAC 30A (7kVA), Bestact mechanically charges the return spring and imparts a hammering effect to open the contacts with a large separating force and at high speeds. Made of newly developed heat-resistant material, Bestact will not contact weld or stick, even without contact protection circuitry such as R/C snubbers or diodes, making it possible to use it like a normal contact.