MCCB with ETU550 — 63 A, 4-Pole, Line Protection
The Siemens 3VA2063-7JP46-0AA0 is a SENTRON molded case circuit breaker (MCCB) rated for 63 A continuous current, with four poles and an ETU550 electronic trip unit. It is designed for line protection in distribution panels and switchboards, carrying a 330 kA interrupting capacity at 240 V and 242 kA at 415 V. The 63 A rating holds across the full ambient temperature range from 40 °C to 70 °C — no derating needed for elevated panel temperatures up to that ceiling. That simplifies panel layout when the breaker sits near other heat sources.
This MCCB delivers 330 kA at 240 V, 242 kA at 415 V and 440 V, 187 kA at 500 V, and 3 kA at 690 V. Rated insulation voltage is 800 V, and the maximum operating temperature is 70 °C with a minimum of -25 °C.
Dimensions are 181 mm height, 140 mm width, and 86 mm depth. The 86 mm depth is the key fit dimension for shallow enclosures — verify gland-plate clearance if back-panel wiring is tight. Front-side IP40 protection covers the operator interface. Trip indicator is not fitted.