Breaking capacity is 242 kA at 240 V AC, dropping to 187 kA at 415 V and 440 V, 121 kA at 500 V, and 3 kA at 690 V — the 690 V figure is low, so verify system voltage before specifying; this breaker is not suited for high-fault 690 V feeders.
Three-pole, fixed thermal-magnetic trip
Three-pole construction with a fixed thermal-magnetic trip unit: the continuous rating is fixed at 63 A, and the adjustable thermal pickup range runs from 16 A minimum up to the 63 A full-scale. No undervoltage release, no communication function, no trip indicator, and no voltage trigger — this is a basic thermal-magnetic MCCB without accessories or remote monitoring. Ground-fault monitoring is via summation current formation on the L-conductor.
Footprint: 105 mm wide, 181 mm tall, 86 mm deep — 4.13 by 7.13 by 3.39 inches. That depth includes the breaker body; allow extra clearance for cable bending and arc-chamber venting per Siemens mounting guidelines. Snap-on DIN rail mounting is standard for the 3VA series — the 105 mm width occupies about six module spaces on a DIN rail.
The 70 °C operating maximum matches the continuous-current derating curve — no surprise there.