178B8579 Danfoss
Wake Industrial LLC is not an authorized distributor of this product.
MPN: VLT2811PT4B20SBR0DBF00A00C1
The Danfoss 178B8579 is part of the VLT 2800 Low Voltage Drives series and features a bookstyle enclosure with IP20 protection rating. This drive has a power rating of 1.1 kW, supports 3 phase operation at 380-480V, and provides 1.5 HP output. It also includes a built-in SLCP display and comes with standard hardware including a brake.
Internal Product Review
The 178B8579 is a Danfoss VLT 2800 low-voltage drive for process applications, rated at 1.1 kW. Built-in display access and standard brake hardware support efficient commissioning and dependable stopping performance. The bookstyle enclosure and IP20 protection make this drive a strong fit for controlled cabinet installations.
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Product Description:
The 178B8579 is a variable-frequency drive manufactured by Danfoss for the VLT 2800 Low Voltage Drives series. Designed for cabinet mounting, this low-voltage controller adjusts motor speed by varying the frequency and voltage supplied to the motor. This control method allows process machinery to operate at speeds suited to changing production demands rather than remaining at a fixed line speed. The compact controller can support applications such as small pumps, mixers, and conveyors in automated production lines.
This model accepts a three-phase input of 380–480 V and operates with industrial power systems at 50 or 60 Hz. Its inverter stage supplies three-phase induction motors with controlled electrical power for variable-speed operation. The continuous motor output is rated at 1.1 kW, which corresponds to 1.5 HP. The IP20 housing provides protection against accidental contact with internal electrical parts and is intended for installation inside a suitable cabinet. The drive does not include an RFI filter, so any required electromagnetic interference suppression must be provided separately. It is also supplied without a fieldbus option, leaving parameter access and control available through the local interface or hardwired inputs and outputs. No application option is installed, so operation uses the drive’s standard control functions rather than a specialized application package.
The slim book-style enclosure supports dense side-by-side installation where cabinet space is limited. A front-mounted built-in display (SLCP) provides local access to acceleration, deceleration, motor, and braking parameters without requiring an external keypad. The unit has a standard configuration with a brake, allowing its internal brake chopper to manage regenerated energy during rapid deceleration when connected to an appropriate braking arrangement. A protective coating on the control boards improves resistance to airborne moisture and contaminants found in humid process areas. The drive is intended for general process applications that use local or hardwired control rather than networked fieldbus communication. Its narrow housing can be arranged with other cabinet components while preserving access to the display, terminals, and cooling paths required for operation.
