The Eaton NSB QCD2070 is a two-pole miniature circuit breaker (MCB) rated for 70 A at 240 V, configured for 1‑phase electrical systems with 50/60 Hz operation. Identified by part number QCD2070, this device is part of the Eaton NSB family and provides overcurrent protection for individual circuits. Used in low‑voltage distribution panels, it interrupts current during overloads or short circuits in single‑phase installations.
