What the ratings mean for fit
The Siemens SENTRON 3VA2010-5KP32-0HA0 is a 3-pole molded case circuit breaker (MCCB) rated for line protection. Its 100 A continuous current at 40 °C holds steady through 50 °C before derating begins — at 55 °C it carries 96.25 A, at 70 °C it still handles 85 A. That thermal curve matters if the breaker lives in a non-conditioned enclosure near a curing press or drive cabinet. The interrupting ratings are the headline: 187 kA at 240 V, 121 kA at 415 V and 440 V, 79 kA at 500 V, and 3.4 kA at 690 V. That 187 kA figure at 240 V means it handles high available fault current on the secondary side of a typical 480 V–240 V step-down transformer without needing a current-limiting fuse upstream. At 690 V the 3.4 kA rating is lower — verify the available fault current at that voltage before specifying. Rated insulation voltage is 800 V, so the breaker is rated for 690 V line-to-line systems. The ETU850 electronic trip unit provides adjustable long-time, short-time, instantaneous, and ground-fault protection curves. It also includes a communication function for remote monitoring and trip indication — useful for a plant-floor SCADA tie-in.
Lifecycle and sourcing reality
The breaker is sourced to order against an RFQ through independent distribution. Availability and current pricing are confirmed at quote time. No last-time-buy window is announced.
Panel integration and mounting
Dimensions are 105 mm wide, 181 mm high, 86 mm deep. The 105 mm width is a standard 3-pole MCCB footprint for a SENTRON 3VA2 frame — it fits the same DIN-rail or screw-mount pattern as other 3VA2 breakers. No auxiliary contacts are factory-fitted; if you need them, they mount externally on the left side. Maximum power loss is 13.5 W. In a sealed enclosure with multiple breakers side-by-side, that heat adds up — account for it in the thermal budget. Operating temperature range is -25 °C to 70 °C; storage range is -40 °C to 80 °C.
How it compares to the 3VA1110-5EE32-0JA0
The closest functional peer is the 3VA1110-5EE32-0JA0. Both are 3-pole SENTRON MCCBs with electronic trip units. The key difference: the 3VA1110 frame is physically smaller (76 mm wide vs 105 mm) and has a lower interrupting rating — typically 65 kA at 240 V versus 187 kA here. If your panel was laid out for the 3VA1110, this breaker will not drop in without widening the mounting footprint and verifying the higher SCCR is acceptable.