Its TM240 thermal-magnetic overcurrent release handles the overload and short-circuit trip curve, while the integrated undervoltage release (UVR) drops the breaker if control voltage is lost — a standard requirement for safety disconnects in refrigeration compressor circuits and other PSM-monitored equipment.
Interrupting capacity — the real-world fault clearance
This breaker clears 121 kA at 240 V, 75.6 kA at 415 V, 52.5 kA at 440 V, 17 kA at 500 V, and 11.9 kA at 690 V.
Thermal derating — how it runs cold and stays cold
Rated current holds flat at 200 A from 40 °C through 50 °C, then derates to 194 A at 55 °C, 188 A at 60 °C, 182 A at 65 °C, and 176 A at 70 °C. For a cold-storage or freezer line where ambient stays near 0 °C, the breaker runs well below its thermal limit — no derating concern. In a hot panel (55 °C+), the 6 A step per 5 °C is predictable and easy to factor into the BOM.