What this MCCB carries and where it sits in the panel
The SENTRON 3VA1116-5EF36-0AH0 is a 3-pole molded case circuit breaker rated for 160 A continuous at 40 °C, with a TM240 thermal-magnetic overcurrent release. That continuous rating holds flat through 50 °C, then derates in 5 °C steps to 150 A at 70 °C — so in a warm enclosure you lose 10 A off the top, provided the ambient stays under 70 °C. The interrupting capacity steps down with system voltage: 187 kA at 240 V, 121 kA at 415 V, 75.6 kA at 440 V, and 17 kA at both 500 V and 690 V. For a 480 V panel fed from a transformer with a stiff source, the 75.6 kA at 440 V gives headroom for most industrial service-entrance applications, provided the available fault current at the line side is calculated and does not exceed that figure. The 800 V rated insulation voltage tells you the internal creepage and clearance are designed for 690 V systems without needing a series reactor. That matters when the breaker lands in a 600 V class motor control center — the insulation rating is not the limiting factor. The TM240 release is a thermal-magnetic type: the thermal element handles overloads on a slow inverse-time curve, the magnetic element trips instantaneously on short-circuit currents above the magnetic pickup threshold. No undervoltage release, no ground-fault monitoring, no communication function on this variant — it is a straight line-protection device, which is what the product designation states.
DIN-rail footprint and auxiliary switch complement
The breaker measures 70 mm deep, 76.2 mm wide, and 130 mm tall — a 3-pole MCCB that fits a standard DIN-rail mounting footprint without overhanging the enclosure depth. The 76.2 mm width is three modular units at 25.4 mm per pole, so it occupies three adjacent 25 mm slots on the rail. Panel builders should account for the 70 mm depth when routing busbars or cables behind the breaker; the 130 mm height leaves room for a single row of auxiliary contacts above the main body. The auxiliary switch complement is 2 auxiliary switches plus 1 trip alarm switch HQ — that gives three independent signal paths: one for the breaker closed/ open status, one for a second status contact, and one that changes state only when the breaker trips on a fault, not on manual opening. That trip alarm is useful for remote fault annunciation in a PLC input.