Line protection breaker with thermal-magnetic release
Breaking capacity is specified per voltage: 121 kA at 240 V, 75.6 kA at 415 V, 52.5 kA at 440 V, and 11.9 kA at 690 V — figures that govern fault-clearing capability at the point of installation. The TM240 release is adjustable; the long-time delay tr max. is set to 1 second per the datasheet, allowing coordination with downstream devices.
Above that threshold the breaker derates: 38.4 A at 55 °C, 37.6 A at 60 °C, 36.8 A at 65 °C, and 36 A at 70 °C. Operating minimum is -25 °C, maximum 70 °C.
Dimensions are 130 mm height, 76.2 mm width, 70 mm depth — a 3-pole MCCB sized for standard distribution panel mounting.
