SM-AST series No-arc Device

SM-AST series No-arc Device

Product description


The AST series AC No-arc devices are the world's first no-arc devices, which solve the arc problems that having been troubling mechanical switches such as relays, push-button switches etc. It can suppress the generation of arcs and is suitable for the arc extinguishing of mechanical switches with various AC circuits. The device can increase the electrical life by over an order of magnitude, improve the current breaking capacity and the withstand voltage level of main circuit, and greatly reduce the amount of maintenance, thus being an extremely “green” product.

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Wiring Diagram

1. AST series products are not suitable for switches arc extinguishing for DC loads.
2. It is recommended that an over-voltage protection circuit be connected between pin 1 and pin 2 of this device, such as a piezoresistor in parallel or an RC absorbed circuit in parallel when it is used in case of over-voltage surge.
3. According to customer needs, pin 1 can connect with a fuse in series, and the rated operating current of fuse is 1/3 to 1/2 of the load current.




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