The Siemens SENTRON 3VA1063-4ED32-0HA0 is a 3-pole molded case circuit breaker (MCCB) rated for 63 A continuous current, built for line protection in distribution panels. It carries a TM210 thermal-magnetic overcurrent release — the thermal element handles overloads, the magnetic element handles short circuits — and includes a factory-fitted shunt trip (STL) for remote tripping via a control signal. Breaking capacity runs from 121 kA at 240 V down to 11.9 kA at 690 V, so it's sized for high-fault commercial and industrial service entrances where the available fault current is substantial.
Ratings and what they mean for the panel
The 63 A continuous rating holds flat from 40 °C up to 50 °C, then derates to 60.48 A at 55 °C and 56.7 A at 70 °C. That means in a warm enclosure — say a non-ventilated panel near a furnace line — you still get nearly 57 A of headroom before the thermal trip starts to move. The rated insulation voltage is 800 V, so it's comfortable on 480 V and 600 V class systems with margin to spare. Breaking capacity is the number that decides whether this breaker clears a fault without welding its contacts or rupturing. At 240 V it's rated for 121 kA; at 415 V it's 75.6 kA; at 440 V it's 52.5 kA; at 690 V it's 11.9 kA. For a 480 V delta service, interpolate between the 440 V and 690 V figures — you're looking at roughly 30–40 kA of interrupting capacity, which covers most industrial secondary distribution.
Physical fit and panel integration
The 3VA1063-4ED32-0HA0 measures 130 mm high, 76.2 mm wide, and 70 mm deep. That 76.2 mm width is a standard 3-pole MCCB footprint — three modules at 25.4 mm each — so it drops into a panel busbar arrangement designed for that pitch. Front IP40 protection means it's fine in a closed cabinet but not rated for washdown or outdoor exposure without an enclosure.
Integrated shunt trip and auxiliary options
The shunt trip (STL) is built in, part number 3VA9688-0BL30 for the release itself. That lets you trip the breaker remotely from an E-stop, a PLC output, or a fire-alarm relay without adding an external undervoltage module. No auxiliary contacts are included — if you need status feedback (open/closed/tripped), you'll add a separate auxiliary switch block. No communication module, no ground-fault monitoring, no phase-failure detection on this variant; it's a straight line-protection breaker with remote trip capability.