The TM210 overcurrent release combines a thermal element for overload protection with a fixed magnetic element for short-circuit protection — the '210' denotes a magnetic trip threshold of 10× the rated current (1250 A), meaning instantaneous trip occurs above that level, a standard setting for general distribution and feeder protection. Breaking capacity is voltage-dependent: 187 kA at 240 V, 121 kA at 415 V, 75.6 kA at 440 V, and 17 kA at both 500 V and 690 V. Current-carrying capacity derates with rising ambient temperature: 125 A from 40 °C through 50 °C, then 122 A at 55 °C, 120 A at 60 °C, 117 A at 65 °C, and 114 A at 70 °C. The maximum power loss at rated load is 28.1 W, which contributes to enclosure thermal rise and should be factored into the panel cooling budget.
Panel integration and physical fit
Dimensions are 130 mm height, 76.2 mm width, and 70 mm depth — a compact 3-pole footprint that fits standard SENTRON panel-mounting patterns.