The SENTRON 3VA1112-6FD42-0AA0 is a 4-pole molded case circuit breaker (MCCB) rated for 62 A continuous current, with a TM210 thermal-magnetic overcurrent release. It's designed for line protection in distribution panels — the 4-pole configuration handles three-phase plus neutral switching, common in European and IEC-based installations where full isolation of all live conductors is required. Breaking capacity is the headline here: 220 kA at 240 V AC, 154 kA at 415 V, 75.6 kA at 440 V, and still 17 kA at 500 V and 690 V. That's a very high-interrupting rating for a 62 A frame — this breaker can sit upstream of a large transformer or feed a high-fault bus without needing a current-limiting fuse ahead of it. The 220 kA figure at 240 V means it's also suitable for North American 240/120 V split-phase or 240 V three-phase services where available fault current is high. The TM210 release is a fixed thermal-magnetic type — no interchangeable trip units, no electronic adjustment. The thermal element handles overload protection (inverse-time curve), the magnetic element handles short-circuit instantaneous trip. For a line-protection MCCB, this is the workhorse configuration: simple, reliable, no programming needed. The 62 A rating is fixed, so verify your load current doesn't exceed that continuous figure.
Thermal derating and panel fit
The breaker is rated 125 A at 40 °C through 50 °C ambient, then derates gradually: 122 A at 55 °C, 120 A at 60 °C, 117 A at 65 °C, 114 A at 70 °C. Note the 62 A rating is the nominal frame rating — the thermal-magnetic release is calibrated for that value. The higher 125 A figures reflect the frame's thermal capacity, but the trip unit sets the actual continuous current limit. In a warm panel (55 °C+), you're still within the release's rating, but headroom shrinks. Dimensions are 130 mm height, 101.6 mm width, 70 mm depth — a compact 4-pole MCCB footprint. The 70 mm depth is shallow enough for most 200 mm deep enclosures, leaving wiring space behind. Front IP40 protection means it's splash-proof from the front but not sealed; mount it inside a panel, not exposed to washdown. Rated insulation voltage is 800 V, so it's rated for 690 V systems with margin. Maximum power loss is 28.1 W at rated current — factor that into enclosure thermal calculations, especially if grouping multiple breakers.
Lifecycle and sourcing
The 3VA series replaced the earlier 3VL series; this 3VA1112-6FD42-0AA0 is the current-generation MCCB. No direct second-source from other brands — MCCBs are form-factor and mounting specific. If you're replacing a 3VL or a competitor's 4-pole 63 A frame, verify the mounting hole pattern and busbar connection centers before committing.