The interrupting ratings tell you where this breaker can safely clear a fault without welding contacts or rupturing the case: 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. The 40 A continuous rating holds flat from 40 °C through 50 °C, then derates to 39 A at 55 °C and 60 °C, 38 A at 65 °C, and 37 A at 70 °C — per the datasheet, no guesswork on the thermal curve.
Built-in accessories: shunt trip and auxiliary switches
The shunt trip lets a remote signal — from an emergency-stop circuit, a PLC output, or a safety relay — trip the breaker electrically without anyone pulling the handle. The two auxiliary switches provide status feedback (open/closed) to a controller or indicator lamp. No field-install kit is needed; these are part of the base unit as delivered.
The 3VA1140-5EF36-0HC0 measures 76.2 mm wide, 130 mm tall, and 70 mm deep.