Four poles, rated 80 A continuous at 40 °C, with a TM210 thermal-magnetic overcurrent release (the '210' means the thermal pickup is fixed at 80 A, magnetic trip at 10× In). Breaking capacity runs 121 kA at 240 V, 75.6 kA at 415 V, 52.5 kA at 440 V, and 11.9 kA at 500 V and 690 V — so it handles high-fault utility feeds in North American 240/480 V systems and European 400/415 V networks without cascading upstream.
Thermal derating — the real-world current
At 55 °C it drops to 78 A, at 60 °C to 77 A, at 65 °C to 75 A, and at 70 °C to 74 A. If the panel runs hot (sun-loaded roof install, adjacent drives), factor the actual ambient against this curve rather than oversizing the frame.
The breaker measures 130 mm high, 101.6 mm wide, 70 mm deep — a 4-pole MCCB in a compact frame that fits standard distribution panelboards. It's a straight line-protection device: wire it in, set the torque on the terminals, and it protects the cable downstream.