SENTRON 3VA2140-8HK46-0AA0 — 40 A MCCB with ETU340, 4-Pole
The Siemens SENTRON 3VA2140-8HK46-0AA0 is a 4-pole molded case circuit breaker (MCCB) rated for line protection, carrying a continuous current Iu of 40 A flat across the full operating temperature range from -40 °C to 70 °C — no derating needed up to the maximum. The ETU340 electronic trip unit provides adjustable N-conductor protection (OFF or 100%) and a fixed long-time delay tr of 1300 ms. Breaking capacity reaches 440 kA at 240 V, 330 kA at 415 V and 440 V, 220 kA at 500 V, and 53 kA at 690 V, giving substantial SCCR headroom for most industrial distribution panels. Rated insulation voltage Ui is 800 V. Front-face protection is IP40.
Panel Fit and Integration
Footprint is 140 mm wide × 181 mm high × 86 mm deep — a standard SENTRON 3VA frame size that fits existing 4-pole MCCB cutouts and DIN-rail or screw-mount panel layouts. Maximum power loss is 1.2 W, so ventilation requirements are minimal even in dense enclosures. Latching endurance is rated at 20 000 cycles. Storage range spans -40 °C to 80 °C.