INSTALL AT ION
7/5
Poles SACE Emax 2 circuit breakers are available in three- pole and four-pole versions and can be used in all types of distribution systems. With the possibility of connecting the external current sensor, three- pole circuit breakers can be used efficiently even in systems in which the neutral conductor cannot be isolated. The four-pole circuit breakers E1.2, E2.2 and E4.2 are always provided with full-size neutral pole with rated uninterrupted current-carrying capacity iden- tical to the phase poles. The E6.2 circuit- breakers, due to their construction modularity, are available
with neutral set at 50 percent of normal supply and with full-sized neutral, so that the customer does not need to oversize the neutral unless strictly nec- essary. The standard supplied circuit breakers are suitable for connection of phases in the sequence L1, L2, L3 for three-pole circuitbreakers, or N, L1, L2 and L3 for four-pole circuit breakers with neutral on the left; a special optional kit enables the position of the circuit breaker neutral to be changed to the right, making the sequence L1, L2, L3, N available (refer to page 265 for the commercial codes). N L1 L2 L3 L1 L2 L3
L1 L2 L3
Circuit breaker
Standard version
Optional version with neutral on the right
Three-pole
Four-pole
Four-pole
Emax E1.2
N L1 L2 L3
L1 L2 L3
L1 L2 L3 N
Emax E2.2
Emax E4.2
Emax E6.2
N L1 L2 L3
L1 L2 L3 N
L1 L2 L3 N
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