Siemens 3VA1040-2ED32-0KA0 — 40 A SENTRON MCCB, Line Protection
The Siemens 3VA1040-2ED32-0KA0 is a 3-pole molded case circuit breaker from the SENTRON 3VA series, rated for 40 A continuous current at 40 °C and configured for line protection with a TM210 thermal-magnetic overcurrent release. Interrupting capacity reaches 52.5 kA at 240 V, 32 kA at 415 V, 13.6 kA at 440 V, and 7.5 kA at 690 V — figures that govern selectivity coordination downstream and SCCR compliance for the panel assembly. The 130 mm height, 76.2 mm width, and 70 mm depth footprint fits standard SENTRON panel cutouts and busbar systems — a direct drop-in for existing 3VA line-protection layouts.
Rated current holds at 40 A from 40 °C through 50 °C ambient, then derates to 38.4 A at 55 °C, 37.6 A at 60 °C, 36.8 A at 65 °C, and 36 A at 70 °C — the full curve matters when the breaker shares an enclosure with heat-generating devices.
Rated continuous current Iu: 40 A. Number of poles: 3. Product version: Line protection. Overcurrent release design: TM210. Latching endurance: 15,000 operations. Integrated auxiliary trip order code: 3VA9688-0BL33.