E4V 4000 PR121 LSIG In 4000A 3p F HR ABBThe E4V 4000 PR121 LSIG is a high quality circuit breaker designed by ABB. With a current rating of 4000A and a 3 pole configuration, this circuit breaker is perfect for heavy duty industrial applications. The LSIG (Long Time, Short Time, Instantaneous, and Ground Fault) protection ensures maximum safety and reliability for your electrical system. This circuit breaker features a compact design, making it easy to install in tight spaces. The F HR
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