Siemens 3VA2110-5HL32-0AJ0 — SENTRON MCCB with ETU320 Trip Unit
The Siemens 3VA2110-5HL32-0AJ0 is a SENTRON 3VA2 molded case circuit breaker (MCCB) configured for line protection with an ETU320 electronic trip unit.
Breaking capacity is 187 kA at 240 V, 121 kA at 415 V and 440 V, 79 kA at 500 V, and 4.25 kA at 690 V. The 187 kA figure at 240 V means this breaker can safely interrupt a fault current up to that level on a 240 V line without upstream cascading — relevant for high-fault installations near large transformers. At 690 V the capacity drops to 4.25 kA, so for 690 V circuits verify the available fault current stays within that limit. Thermal derating is flat at 100 A from 40 °C through 50 °C, then steps down: 96.25 A at 55 °C, 92.5 A at 60 °C, 88.75 A at 65 °C, and 85 A at 70 °C. For a panel running at 55 °C ambient, the breaker must be loaded to no more than 96.25 A continuous — a 3.75 % reduction from the nameplate. The operating temperature range is -25 °C to 70 °C, with storage from -40 °C to 80 °C.
Physical Fit and Auxiliary Contacts
Dimensions are 105 mm wide, 181 mm high, and 86 mm deep. The 105 mm width is the standard 3-pole MCCB footprint for this SENTRON generation — it occupies the same panel cutout as the 3VA1010 series, so a panel originally wired for a 3VA1010-2ED32-0JA0 will accept this breaker without re-drilling the mounting plate. The trip alarm signals when the breaker has tripped on fault, separate from the auxiliary position-indication contacts. Maximum power loss is 10 W.