Above that, the TM210 thermal-magnetic release derates linearly: 48 A at 55 °C, 47 A at 60 °C, 46 A at 65 °C, 45 A at 70 °C.
Breaking capacity by system voltage
This MCCB delivers 75.6 kA at 240 V, 52.5 kA at 415 V, 32 kA at 440 V, and 7.5 kA at 690 V. At 690 V the 7.5 kA rating limits it to low-fault locations or transformer-secondaries with reduced available current.
Construction and auxiliary options
Three-pole line-protection version with a TM210 thermal-magnetic fixed-trip release. It ships with two HQ auxiliary switches (order code 3VA9608-0BB24 for the integrated auxiliary trip) and an undervoltage release (UVR) fitted. Dimensions: 130 mm height, 76.2 mm width, 70 mm depth — standard SENTRON 3VA footprint, drops into the same DIN-rail or screw-mount pattern as other 3VA frames.
Mechanical endurance rated at 15 000 operations — adequate for a distribution breaker that cycles infrequently, not a switching-duty device.