This TM25G is a 4 poles 4d thermal-magnetic trip unit used on Compact NSX 100 circuit breakers. This 25A rating thermal-magnetic trip unit is an optimum choice for generator protection 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.