SENTRON 3VA2010-5HL36-0JC0 — 100 A MCCB for line protection
The Siemens SENTRON 3VA2010-5HL36-0JC0 is a 3-pole molded case circuit breaker (MCCB) rated for 100 A continuous current, designed for line protection in distribution panels. It carries a shunt trip release (STL) and two factory-fitted auxiliary switches HQ, making it suited for remote tripping and status feedback in motor control centers or main feeders. Interrupting capacity is the headline here: 187 kA at 240 V AC, 121 kA at 415 V and 440 V, 75.6 kA at 500 V, and 3 kA at 690 V. That 187 kA at 240 V means it can clear a fault on a high-capacity transformer secondary without upstream fuses — a rare spec in this frame size. At 690 V the rating drops to 3 kA, so if your system runs 690 V distribution, verify the available fault current is under that threshold. Thermal derating is flat from 40 °C to 70 °C — the breaker holds 100 A across that entire ambient span. That simplifies panel design: no need to upsize the frame for a 60 °C enclosure interior. Power loss at full load is 13.5 W, manageable for a standard IP2X enclosure but worth including in thermal calculations for sealed cabinets.
Lifecycle and sourcing posture
Operating temperature range is -25 °C to +70 °C; storage from -40 °C to +80 °C. That storage range covers unheated warehouses in cold climates — the breaker can sit on a shelf at -40 °C without damage, provided it's warmed above -25 °C before energizing.
Mounting and integration
Dimensions: 181 mm high, 105 mm wide, 86 mm deep. The 105 mm width is standard for a 3-pole MCCB in this class — fits common panel cutouts and busbar centers. Depth of 86 mm means it clears a 120 mm deep enclosure without crowding the gland plate. The basic switch variant is 3VA20105HL360AA0, which confirms the internal mechanism. The auxiliary switch design carries two HQ auxiliary switches — these are high-quantity (HQ) form-C contacts for status signaling to a PLC or SCADA. No undervoltage release on this variant, so if you need UVR protection, this is not the order code.