一、 Overview AHB (DW914B) Universal Air Circuit Breaker is a product introduced from Japan Terasaki Electric Industry Co., Ltd. This product is suitable for rated currents of 630-4000 amps. Rated voltage AC 50 (or 60) Hz, 660 volts and below; DC 440 and below for marine and land distribution systems, for overload, undervoltage and short circuit protection, and under normal operating conditions for the line infrequently Conversion use. 

二、The characteristics of the circuit breaker 

1、 Small size, high current interrupt capacity and high electric stability. 

2、 It has fixed and withdrawable structure, which is convenient for users to choose. The latter is easy to use and maintain. 

3 、Diversified operation methods. 

4、 There are a variety of overcurrent protection devices, and the protection performance is perfect.

 5、It can be opened at a long distance. It can also be manually opened. Domestic model foreign models pole number DW914-630AH-6B3, 4DW914-1000AH-10B3, 4DW914-1600AH-16B3, 4DW914-2000AH-20C3, 4DW914-2500AH-25C3, 4DW914-3200AH-30C3, 4DW914-4000AH-40C3, 4.