A 2-pole AC SPD (Surge Protection Device) is a single-phase electrical component for protecting appliances from voltage spikes, featuring two poles (live and neutral) for a single-phase circuit, DIN-rail mountable, with fast response times (<25ns) and visual indicators (green for normal, red for fault) to guard against lightning or power grid issues, requiring proper earthing for effective operation. Key Features Poles: 2 (Live & Neutral) for single-phase AC systems. Protection: Safeguards against surges from lightning, switching, etc.. Mounting: Typically DIN-rail mountable for easy installation in distribution boards. Indicators: Green light for normal operation, red light for fault/replacement needed. Response Time: Very fast (nanoseconds), quickly diverting excess voltage to ground. Types: Often Type 1 2 or Type 2, protecting against different surge levels. Voltage: Common ratings like 320V or 275V AC for residential use. How it Works Detects Surge: When a voltage spike occurs, the SPD activates. Diverts Energy: It channels the excess current safely to the ground (earth wire). Indicates Status: The indicator window changes color, signaling if it’s working or needs replacement.
