Square D 2520MP2.4U Three-Phase Low Voltage Circuit Breaker

The Square D 2520MP2.4U is a three‑phase low‑voltage circuit breaker rated for 600V with a current range of 2.4 to 4A. It provides overload and short‑circuit protection for three‑phase feeders in low‑voltage distribution systems, typically installed in electrical panels or panelboards to safeguard circuits from overcurrent. The model designation 2520MP2.4U identifies a three‑pole device in Square D’s low‑voltage protection lineup, designed for applications that require protection settings in the 2.4–4A range at up to 600V. With three poles, it interrupts all phases simultaneously to maintain balanced protection across the circuit. When correctly applied, it contributes to safe, reliable operation of three‑phase equipment and distribution networks by limiting fault currents and preventing damage to downstream components. Exact installation requirements and wiring configurations should follow Square D product documentation and applicable electrical codes.