Autotransformer starter BQJ proof auto decompression starter products with overload, short circuit, undervoltage, equal protection; can be customized according to actual needs; You can use pipe or cable wiring. Protection class IP54, Ex logo ExdIIBT4 or ExdeIIBT4, corrosion grade WF1, inlet and outlet thread is G1 ~ 3 inches. For 1 and Zone 2 hazardous locations; IIA, IIB class flammable gas environment; indoor and outdoor work environments. Flameproof enclosure made of aluminum or steel welding, surface spray, greatly enhance corrosion resistance cabinet; built-in auto-transformers, AC contactors, thermal relays, circuit breakers, time relays, current transformers, voltage meter , ammeter, switch and lights and other components; BQJ proof quality auto decompression year replacement starter, three-year warranty. Autotransformer starter