What the tripping mechanisms mean for your panel
The 2CDS252001R0065: The thermal element handles sustained overloads — the kind you get from a stalled motor or a jammed conveyor — by heating a bimetal strip that trips the breaker after a delay, allowing harmless inrush to pass. The electromechanic (magnetic) element reacts instantly to a short-circuit fault, clearing it before the fault current can damage downstream cables or the bus. This dual-response design is what makes an MCCB suitable for motor branch circuits and feeder protection in a distribution panel.