The Eaton BR320 Miniature Circuit Breaker is a three-pole (3P) 20A MCB from the BR NSB family, rated for 240 V AC at 50/60 Hz. It provides overcurrent protection for three‑phase circuits, matching the BR320 model’s 3P 20A 240V 50/60 Hz specifications. Identified by part number BR320, this BR-series device is intended for use in three‑phase electrical distributions requiring reliable 240 V protection.
