ABB SACE Isomax S3N15035A is a 3-pole molded-case circuit breaker (MCCB) in the Isomax S3N family, configured for a 150 A frame and 35 kA short‑circuit rating. It is rated for up to 600 VAC or 500 V DC, with a breaking capacity of 25 kA at 480 VAC and 35 kA at 415 VAC. The device uses a thermal‑magnetic release with long‑time and instantaneous trip functions and features bolt‑on mounting with a fixed, non‑interchangeable trip—designed for reliable protection in distribution circuits, including reverse‑feed applications.
