At 240 V this MCCB is rated for 187 kA — a very high figure that covers most low-voltage transformer-fed fault duties. At 415 V and 440 V it holds 121 kA, dropping to 79 kA at 500 V. At 690 V the rating is 4.25 kA, which still covers the typical fault current on a 690 V distribution board but is not a high-interrupting rating at that voltage.
At 55 °C it derates to 96.25 A, at 60 °C to 92.5 A, at 65 °C to 88.75 A, and at 70 °C to 85 A.
Auxiliary contacts and shunt trip — what is built in
That gives you two form-C contacts for status feedback (open/closed) and one dedicated contact that changes state only when the breaker trips on fault — useful for remote alarm annunciation. The integrated auxiliary trip module is order code 3VA9688-0BL32. The basic switch (the breaker mechanism without auxiliaries) is 3VA2110-5HL32-0AA0.
Width is 105 mm, height 181 mm, depth 86 mm. Depth of 86 mm includes the mechanism but not the handle throw arc; verify clearance in front of the panel for the toggle to swing. The breaker mounts via four screws to a mounting plate or directly to a DIN rail adapter (not included in this order code).
