131Z8972 by Danfoss

The 131Z8972 is a low-voltage AC drive manufactured by Danfoss for the VLT 2800 Low Voltage Drives series. This compact converter fits crowded control cabinets and supplies variable-frequency power to utility motors used in conveying, dosing, and mixing stages of automated lines. It is suited to variable-speed tasks where controlled acceleration and adjustable motor speed are needed during normal production. By adjusting output frequency, it helps connected equipment match shaft speed and torque to changing loads while reducing unnecessary energy use.

The drive connects to a 200-240 V AC supply, and its single-phase input suits installations where three-phase service is unavailable. A book-style housing saves panel width and supports side-by-side cabinet layouts, while the enclosure has an IP20 rating for protected indoor mounting inside ventilated electrical cabinets. The circuit boards have a protective coating that helps resist airborne moisture and chemical vapors in humid areas. A front-mounted built-in display (SLCP) shows output frequency, current, and fault codes, so operating status and basic settings can be viewed at the drive. The model comes without an application option and without a fieldbus option, so local setup is used instead of network-based control extensions.

The drive uses a standard configuration with a brake, which includes a brake chopper for controlled deceleration of high-inertia loads. That function helps manage regenerated energy during slowing cycles and supports more stable stopping behavior. Conducted emissions are limited by an integrated RFI stage that meets EN 55011 Class A1, helping the panel meet plant EMC requirements. It is intended for process applications where continuous duty, moderate enclosure protection, and direct keypad access are more useful than modular communications.