At 415 V and 440 V it still holds 242 kA, and at 690 V it is rated 52.5 kA. The ETU310M electronic overcurrent release gives it adjustable long-time, short-time, and instantaneous pickup settings — not just a fixed thermal-magnetic curve. That matters when you are protecting a motor: you can set the long-time pickup to ride through the inrush without nuisance tripping, and the short-time delay lets you coordinate with downstream starters or contactors. The shunt trip release (STL) allows remote tripping from an E-stop or PLC output, which is standard for safety circuits. No undervoltage release is fitted, so the breaker stays latched on loss of control power — a deliberate choice if you do not want the line to drop on a brownout.
Current ratings and thermal derating — the real continuous capability
At 55 °C it drops to 96 A, at 60 °C to 94 A, at 65 °C to 92 A, and at 70 °C to 90 A (–).
Physical fit — panel dimensions and mounting
No special adapter plate needed for a typical 600 mm wide distribution panel.