Its interrupting capacity hits 121 kA at 240 V AC and 75.6 kA at 415 V AC — figures that govern its application in high-fault panels where a standard MCB would weld shut.
The 50 A continuous rating holds flat from 40 °C to 50 °C, then derates to 49 A at 55 °C, 48 A at 60 °C, 46 A at 65 °C, and 45 A at 70 °C. The TM210 release is a thermal-magnetic type — thermal element handles overloads (inverse time), magnetic element handles short-circuits (instantaneous). It's a straight line-protection breaker: feed it, protect the cable, trip on fault. No auxiliary signaling.
Interrupting capacity by voltage
Interrupting capacity drops as voltage rises: 121 kA at 240 V, 75.6 kA at 415 V, 52.5 kA at 440 V, and 11.9 kA at both 500 V and 690 V. At 690 V the breaker still clears 11.9 kA — enough for most 690 V distribution, but verify against your transformer's fault current.
Dimensions: 76.2 mm wide (3 in), 130 mm tall (5.12 in), 70 mm deep (2.76 in).