Its continuous current rating holds 400 A from 40 °C up to 50 °C, then derates gradually to 367 A at 70 °C — so if your panel ambient runs hot, the 400 A nameplate only applies up to 50 °C; above that you lose 8–33 A per step. The TM210 thermal-magnetic release gives fixed thermal and magnetic trip thresholds, no electronic adjustment. Breaking capacity hits 187 kA at 240 V AC and 121 kA at 415/440 V AC, which means it can interrupt fault currents up to those levels without upstream cascading — important for high-fault installations like industrial mains or transformer secondaries.
Sourcing and lifecycle — still current, quoted to order
No official successor exists because none is needed.
Panel integration — footprint and mounting
Front IP40 protection means it's suited for enclosed panel mounting where no water jets or dust ingress are expected.
