SENTRON 3VA2 MCCB, 25 A, 4-Pole — Line Protection with ETU850
The N-conductor protection is adjustable from OFF to 40%–160% of the phase rating, giving flexibility for systems where neutral current may exceed phase current (harmonic-rich loads). No ground-fault monitoring version is included on this order code — that's a separate variant if you need GF protection integrated.
Dimensions are 181 mm height, 140 mm width, 86 mm depth — a standard 4-pole MCCB footprint for the 3VA2 frame. Verify the 86 mm depth leaves clearance for outgoing cable bends and the ETU850's auxiliary wiring if communication function is used.
Trip Unit and Protection Capabilities
The ETU850 electronic trip unit supports communication function. Power loss is 0.5 W maximum. No undervoltage release or voltage trigger is included on this variant — those are separate accessories if needed for your application. The trip indicator is also not present on this order code, so visual trip status requires an optional auxiliary contact.