It's a 3-pole breaker rated for 800 A continuous at 40 °C, and it holds that same 800 A rating all the way up to 50 °C. That's useful if your panel runs warm; you don't lose capacity until you cross 55 °C, where it steps down to 780 A, then 761 A at 60 °C, 741 A at 65 °C, and 722 A at 70 °C. The interrupting ratings are given at several voltages: 187 kA at 240 V, 121 kA at 415 V and 440 V, 75.6 kA at 500 V, and 52.5 kA at 690 V. That covers most industrial distribution voltages in North America and Europe.
This breaker ships with a factory-installed shunt trip (STL) and two HQ auxiliary switches. The two auxiliary switches give you status feedback (open/closed) for your control system. The basic switch inside is the 3VA15805EF320AA0. No undervoltage release is included, and there's no ground-fault monitoring module. If you need those, you'd add them externally or order a different variant.
Physical dimensions and panel fit
The breaker measures 210 mm wide, 320 mm tall, and 120 mm deep. That's 8.27 in by 12.6 in by 4.72 in. It's a panel-mount device — not a DIN-rail snap-on — so you'll need to account for the mounting screws and bus-bar connections. The 120 mm depth includes the case body; leave extra clearance behind the panel for the lug terminals and any external accessories like the shunt trip wiring.
Environmental and electrical ratings
Maximum power loss is 240 W. No communication function, no trip indicator, and no voltage trigger. The design is strictly line protection — not suitable for motor protection without an external overload relay.