This TM125D is 4 poles 3d thermal-magnetic trip unit used on ComPacT NSX 160/250 circuit breakers. This 125A 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. This product is part of our EcoStruxure Power architecture if associated with PowerTag NSX and ComPacT NSX basic frame.
