Line protection MCCB with ETU320 — 100 A, 242 kA breaking capacity
The Siemens SENTRON 3VA2010-6HL32-0JH0 is a 3-pole molded case circuit breaker (MCCB) rated for line protection, carrying a rated continuous current Iu of 100 A and a rated insulation voltage Ui of 800 V. Its interrupting capacity reaches 242 kA at 240 V and 187 kA at 415 V and 440 V, stepping down to 121 kA at 500 V and 4 kA at 690 V — figures that define the available fault-current ceiling for selectivity studies on a 400 V distribution board. The overcurrent release is an ETU320 electronic trip unit, which provides adjustable long-time, short-time, and instantaneous protection curves. A shunt trip (STL) auxiliary release is integrated for remote tripping. The auxiliary contact configuration includes 2 auxiliary switches plus 1 trip alarm switch (HQ version), feeding status and fault signals back to a PLC or annunciator panel. Thermal derating is documented across the operating range: the breaker holds its full 100 A rating up to 50 °C, then linearly reduces to 96.25 A at 55 °C, 92.5 A at 60 °C, 88.75 A at 65 °C, and 85 A at 70 °C. Maximum power loss is 13.5 W. Operating temperature spans -25 °C to 70 °C; storage range is -40 °C to 80 °C. Mechanical endurance is rated at 20 000 operations (latching). A trip indicator and voltage trigger are fitted. The breaker mounts in a standard panel footprint with dimensions 86 mm depth, 105 mm width, and 181 mm height — verify cutout and bus-bar spacing before retrofitting into an existing distribution board.
Compliance documentation
As a SENTRON series MCCB, the 3VA2010-6HL32-0JH0 is designed and tested to IEC 60947-2 and carries CE marking for the European market. UL and CSA certifications are standard for the platform; confirm the specific listing for this variant with the manufacturer's declaration of conformity. RoHS and REACH compliance documentation is available from Siemens on request.