Circuit breaker h3 x160 TM ADJ 4P4D N0-100% 40A 25kA CTC. Circuit breaker according to DIN EN 60947-2 size x160, with thermal (adjustable) and magnetic (fixed) tripping to protect electrical systems and networks. Installation on top hat rail or mounting plate. The three different operating states can be identified by the position of the knob (ON = top, OFF = bottom, tripped = middle position). Box terminals for Cu cables are included as standard. The switches have a mechanical test button. The function of the circuit breaker can be expanded using various accessories.