ABB ATV312H037N4 AC Variable Frequency Drive

Schneider Electric’s Altivar ATV312H037N4 is a compact three‑phase AC variable frequency drive that provides precise motor control from a 380–500 VAC three‑phase power source. Rated at 0.37 kW (0.5 HP) and 1.5 kVA, it is sized for small industrial loads and is well suited for pumps, fans, conveyors, and general automation tasks where smooth starting, speed regulation, and energy‑efficient operation matter. The ATV312H037N4 accepts 380–500 VAC input with 50/60 Hz compatibility and delivers adjustable output to a compatible motor, enabling configurable acceleration and deceleration ramps to protect mechanicals while optimizing process control. It belongs to the ATV312 family, with the H037N4 designation indicating the 0.37 kW class within this line, offering the reliability and familiar Altivar interface that supports straightforward parameter setup and motor protection features. Its compact form factor supports panel mounting in tight automation enclosures, making it a practical choice when a small‑footprint drive is required for sub‑1 kW motors operating at standard industrial voltages.