Compact automatic circuit breaker Tmax XT XT2N with thermomagnetic protection and rated current of 63A in 3-pole version. Fragility (N) gives the ICU 36kA@415V/10kA@690V. The protection is thermally adjustable in the range 0.7-1xIn and short circuit in the range 5-10xIn. The switch is supplied for fixed mounting and has a front connection on the main terminals as standard.