The Siemens SENTRON 3VA2063-5HL36-0AG0 is a 3-pole molded case circuit breaker rated for 63 A continuous current across the full ambient range from -25 °C to 70 °C — no derating needed up to that ceiling. Breaking capacity hits 187 kA at 240 V AC and 121 kA at 415/440 V, dropping to 75.6 kA at 500 V and 3 kA at 690 V. That 187 kA figure at 240 V makes it a strong candidate for high-fault panels in industrial distribution where upstream transformer capacity is large.
Breaking capacity and selectivity
The 187 kA at 240 V is the headline number, but the real-world selectivity picture is at 415 V — 121 kA. That is enough to coordinate with most downstream 25 kA or 36 kA MCCBs in a tiered panel, provided the let-through energy of the upstream device is published. Insulation voltage is rated 800 V, so the breaker is comfortable in 690 V systems even though the interrupting rating at that voltage is only 3 kA — not a primary fault-clearing device at 690 V, but fine for isolation.
Integration and mounting
Dimensions are 86 mm deep, 105 mm wide, 181 mm tall — fits standard MCCB panel cutouts for 3-pole frames in that amp class. The auxiliary switch configuration is 1 auxiliary + 1 trip alarm switch (HP type), which gives remote status and trip indication without an external module. Power loss is 5.4 W maximum, manageable for thermal budgeting in a sealed enclosure.
Design and compliance
Designed for line protection — no ground-fault monitoring, no undervoltage release, no communication function. The basic switch variant is 3VA20635HL360AA0. Compliance documentation (RoHS, REACH, UL, IEC) is standard for the SENTRON family; the 800 V insulation rating aligns with IEC 60947-2 requirements for industrial MCCBs.