TM250DC is a 4 poles thermal-magnetic trip unit used on ComPacT NSX 250DC circuit breakers. This 250A rating thermal-magnetic trip unit is an optimum choice for all distribution applications. It embeds an adjustable thermal overload protection and a fixed magnetic protection against short-circuits. The rated current is 250A and the operational voltage is 750VDC. It is compliant with international standards (IEC 60947), CCC, EAC and marine specifications.