What this MCCB carries and where it fits
The Siemens SENTRON 3VA1116-4FD46-0AA0 is a 4-pole molded case circuit breaker (MCCB) rated for continuous 80 A, fitted with a TM210 thermal-magnetic trip unit — that means the thermal element handles overloads and the magnetic element handles short-circuits, no separate ground-fault module. Breaking capacity hits 121 kA at 240 V AC, dropping to 75.6 kA at 415 V, 52.5 kA at 440 V, and 11.9 kA at 500 V or 690 V — so the 240 V figure is the headline, but the 415 V rating is the one that matters for most European 400 V panels. Insulation voltage is rated 800 V, so it's comfortable in 690 V systems with margin. Front IP40 keeps dust out of the panel cutout.
Thermal derating — don't just read the 80 A label
At 40 °C, 45 °C, and 50 °C the breaker carries the full 160 A (note: that's the frame rating, not the trip-unit setting — the TM210 is adjustable). At 55 °C it's 158 A, at 60 °C it's 155 A, at 65 °C it's 153 A, and at 70 °C it's 150 A. If your panel ambient sits above 50 °C, you lose about 2 A per 5 °C step. That's not a showstopper for most industrial enclosures, but worth factoring if the breaker is next to a heat source or in a sealed cabinet.
Panel fit — dimensions and mounting
Measures 130 mm high, 101.6 mm wide, 70 mm deep. 4-inch wide footprint for a 4-pole MCCB. Front IP40.
Lifecycle and sourcing posture
The lifecycle stage is listed as current — meaning Siemens still actively manufactures and supports this order code. No NRND or phase-out flag. No official successor has been published. For BOM-freeze or project-bid purposes, this part is sourced to order against an RFQ through independent distribution channels; availability and current pricing are confirmed at quote time.