Breaking capacity is the real story here: 330 kA at 240 V, 242 kA at 415 V and 440 V, 187 kA at 500 V, and 15.3 kA at 690 V. The 15.3 kA at 690 V is still respectable for a 500 A frame; it handles most industrial 690 V bus faults without cascading upstream.
Built-in protection and auxiliary options
Phase failure detection is standard on this unit — it trips if one phase drops out, which prevents single-phasing a motor load. That UVR is the coil that drops the breaker when control voltage is lost, common in emergency-stop chains and safety circuits. The trip indicator gives a visual flag so a technician walking the panel can see which breaker opened without opening the door.
Footprint is 138 mm wide by 248 mm tall by 110 mm deep.