The GENERAL ELECTRIC 446W0696P001 4.2kW DC Pitch Converter is a dedicated power drive unit for GE Renewable Energy wind turbine pitch control systems. It matches 20 Nm pitch drive motors with a rated continuous output power of 4.2 kW, a short-term peak output power up to 12 kW, and a rated output voltage of 80 VDC.

The equipment consists of a control mainboard, power mainboard, integrated aluminum alloy heat sink base and insulating protective housing, with a total weight of 15.22 kg. Certified to UL and CSA safety standards, it comes preloaded with standard WP1Z/WP5R firmware.

Designed to deliver precise DC speed regulation power for hub pitch mechanisms of onshore megawatt-class wind turbines, it executes core functions including blade angle adjustment, emergency feathering braking and fault protection shutdown. Developed for full set matching with GE proprietary wind turbine series, it enables long-term stable operation inside nacelle hubs under wide temperature, high vibration and heavy dust conditions.

Electrical Parameters

Hardware Structure

Program & Communication

Environmental Resistance

Protection Functions

Onshore Wind Power Industry

New Energy Operation & Maintenance Support

Industrial High-Power DC Drive Scenarios

Product Comparison

Comparison Targets: GE low-power pitch converter 446W0521P001 (2.8kW) and high-power model 446W0782P001 (6.0kW)

Power Range

446W0696P001 features medium 4.2kW power, matching mainstream 2.5–3.2MW wind turbines; the 2.8kW variant is for low-power units below 2MW; the 6.0kW model suits high-torque wind turbines of 3.6MW and above.

Heat Dissipation Structure

All three models adopt aluminum passive heat dissipation. The 4.2kW unit comes with fins of moderate thickness, balancing lightweight design and heat dissipation efficiency, while the high-power version adopts wider and heavier fins.

Hardware Version

446W0696P001 uses a BAA/CAA board combination with optimal program compatibility. The firmware of 2.8kW and 6.0kW boards cannot be directly interchanged.

Load Matching

The 4.2kW converter matches standard 20Nm torque motors, covering most GE onshore wind turbines on the market. The low and high power models only support motors with corresponding torque ratings; mixed use will easily trigger overload alarms.

Replacement Cost

446W0696P001 has the largest market stock, shorter spare part procurement lead time, and lower overall maintenance replacement cost compared with the 6.0kW high-power model.