At 415 VAC it still handles 75.6 kA, and at 690 VAC it holds at 11.9 kA, so it covers both low-voltage commercial and industrial service-entrance duty. The overcurrent release is a TM210 thermal-magnetic type, which means it uses a bimetal strip for overload protection and a solenoid for short-circuit response — no electronic trip unit, so no auxiliary power needed for the trip function. A built-in shunt trip (STL) allows remote opening via a control signal, useful for emergency-stop or interlock circuits.
Breaking capacity across voltages — where it fits
This MCCB's interrupting rating drops as voltage rises: 121 kA at 240 V, 75.6 kA at 415 V, 52.5 kA at 440 V, and 11.9 kA at both 500 V and 690 V.
The 25 A rating holds steady up to 50 °C ambient. Maximum power dissipation is 8.5 W, which matters for heat buildup in a sealed panel.
The 76.2 mm width (3 inches) matches the typical SENTRON 3VA frame width for 3-pole units up to 160 A, so it slots into existing panel layouts without re-drilling.