That 630 A figure is the current it can carry continuously without tripping at 40 °C ambient — above that temperature it must be derated: 600 A at 45 °C, 570 A at 50 °C, and so on down to 450 A at 70 °C. The ETU860 is a programmable overcurrent release that supports LSIG protection (long-time, short-time, instantaneous, ground-fault) and includes a communication function for remote monitoring. The 3-pole design handles three-phase loads up to 800 V insulation voltage. Breaking capacity is the other headline: 330 kA at 240 V, 242 kA at 415 V and 440 V, 187 kA at 500 V, and 9 kA at 690 V.
Dimensions: 248 mm height, 138 mm width, 110 mm depth. No undervoltage release or voltage trigger is fitted on this variant.