The BU-32-4 Series 2 is an aircraft electronic control unit designed to process electrical signals and control movable mechanical stops within automatic aircraft control systems.

Within the system architecture, the control unit processes input signals related to ambient pressure and temperature and generates control commands for actuating mechanisms, ensuring automatic limitation of control travel in accordance with defined operating conditions.

The unit is used as part of the SPUU-52 movable control stops system installed on helicopters and aircraft where automatic limitation and protection of control systems is required.

The product is also known under alternative designations BU-32-4 Series 2, БУ-32-4 серия 2, which refer to the same product type.

Product Type: Aircraft electronic control unit
Function: Processing of pressure and temperature signals and control of movable stops
Application / Where Used: SPUU-52 movable control stops system
System / Installation Area: Automatic control and regulation circuits
Operating Voltage (AC): 36 V (400 Hz)
Operating Voltage (DC): 27 ± 2.7 V
Current Consumption (AC): Not more than 0.3 A
Current Consumption (DC, continuous): Not more than 0.5 A
Current Consumption (DC, short-term): Not more than 2.5 A
Transmission Ratio by Temperature: 1.05 ± 0.32 % of actuator travel per °C
Transmission Ratio by Pressure: 0.39 ± 0.12 % of actuator travel per mm Hg
Weight: Not more than 1.3 kg
Technical Documentation: Passport 6C2.399.032-04 PS

All shipments are carried out from our international warehouse in Dubai (UAE), as well as from our partners’ remote warehouses.

In Stock — items available in stock at the Dubai warehouse are dispatched within 5–10 business days after receiving 100% prepayment.

Remote Stock — items available at our partners’ remote warehouses are supplied within an average of 30–45 business days after receiving 100% prepayment.

Pre-Order — made-to-order products are manufactured and delivered within an average of 45–60 business days. Payment terms: 50% advance payment to start production, with the remaining 50% paid before dispatch from the Dubai warehouse after full readiness for shipment.

Returns & Changes (Restocking Fee)
For selected items, a RESTOCKING FEE of 10% may apply in case of return, order cancellation, or changes to the order specifications. This condition applies only to certain products and is confirmed at the order approval stage.

Warranty
All products are covered by a standard 6-month warranty.
Extended warranty is available upon request and is agreed individually; it may affect the final product price.