What this 3VA1063-3ED32-0JC0 is and what it does
3-pole unit rated 63 A at 40 °C, rated insulation voltage 800 V. The breaking capacity tells you where this breaker can live: 75.6 kA at 240 V, 52.5 kA at 415 V, 32 kA at 440 V, and 7.5 kA at 500 V and 690 V. That's a high-interrupting-capacity (HIC) device — it's meant for main or sub-main positions where the available fault current is serious, not for a branch circuit feeding a single motor. The 7.5 kA at 690 V is worth noting if you're working a 690 V plant; most MCCBs in this frame size won't hold that number. This breaker ships with a shunt trip (STL) release and two auxiliary switches (HQ) factory-installed, so it's ready for remote-trip and status-feedback wiring out of the box. No undervoltage release, no ground-fault monitoring, no communication module — it's a straight line-protection breaker with remote trip capability. The power loss at full load is 17.3 W, which is typical for a 63 A frame; factor that into your enclosure thermal rise calc.
Thermal derating and real-world current
The 63 A rating holds from 40 °C up to 50 °C — no derating needed in a reasonably ventilated panel. At 55 °C it drops to 62 A, at 60 °C to 61 A, at 65 °C to 60 A, and at 70 °C to 58 A. That's a gentle slope; you lose only 5 A over a 30 °C rise. If your panel ambient runs 60 °C, you can still pull 61 A continuous without nuisance tripping, which is better than many older frame designs that shed 15% by 50 °C. The operating temperature range is -25 °C to 70 °C, and storage range is -40 °C to 80 °C. That's standard industrial — fine for unheated warehouses and roof-top enclosures in most climates.
Panel fit and footprint
130 mm high, 76.2 mm wide, 70 mm deep. Bolts directly to mounting plate.
What the accessories mean for your wiring
The factory-fitted shunt trip (STL) lets you trip the breaker remotely from an E-stop, a safety relay, or a PLC digital output — it's a voltage-triggered release, so you need a control voltage source at the breaker. The two auxiliary switches (HQ) provide normally-open / normally-closed status contacts for the panel PLC or indicator lamps. No communication function, no ground-fault module — if you need those, you're looking at a different 3VA variant.