13

System

pro M compact ®

Miniature circuit-breakers

S 200/S 200 M series

Diagrams of let-through values I2 t at 230/400 VAC

Miniature circuit-breakers S 200 B/C, D on request

Miniature circuit-breakers S 200 K

Miniature circuit-breakers S 200 Z

Miniature circuit-breakers S 200 M B/C

➀

min. pre-arcing I2t, e.g. In = 80 A gL

➁

max. let-through I2t MCB e.g. B20 A

q

Fuse-MCB, selectivity with respect to the upstream fuse to the point of intersection of both curves ➀ and ➁.

e.g. S 200-B20 to fuse 80 A: selectivity up to 3.5 kA min.

q

Let-through value I2t reduced:

127 V

by factor 2.5

110 V

by factor 3