• Merlin Gerin Masterpact Air Circuit Breaker (ACB), NT and NW series, offers circuit protection from 630A to 6300A

• Masterpact ACB offers built in communications, metering, functions, withdrawability, discrimination and low maintenance

• Five performance levels

          ~ N1 - for standard applications with low short-circuit levels

          ~ H1 - for industrial sites with high short-circuit levels or 
              installations with two parallel-connected transformers

          ~ H2 - high-performance for heavy industry where very high
             short-circuit can occur

          ~ H3 - for incoming devices supplying critical applications
             requiring both high performance and a high level of 
            discrimination

          ~ L1 - for high current-limiting capability and a discrimination
             level (37kA) as yet unequalled; intended for the protection
             of cable- type feeders or switchboards when the
             transformer power rating  is increased
                                                                                        

• Merlin Gerin Masterpact Air Circuit Breaker (ACB), NT and NW series, offers circuit protection from 630A to 6300A

• Masterpact ACB offers built in communications, metering, functions, withdrawability, discrimination and low maintenance

• Five performance levels

          ~ N1 - for standard applications with low short-circuit levels

          ~ H1 - for industrial sites with high short-circuit levels or 
              installations with two parallel-connected transformers

          ~ H2 - high-performance for heavy industry where very high
             short-circuit can occur

          ~ H3 - for incoming devices supplying critical applications
             requiring both high performance and a high level of 
            discrimination

          ~ L1 - for high current-limiting capability and a discrimination
             level (37kA) as yet unequalled; intended for the protection
             of cable- type feeders or switchboards when the
             transformer power rating  is increased