The BZU-4A protection and control unit is designed to operate in three-phase alternating current power supply systems with parallel operation of two generators from a common drive.

1. Supply voltage (direct current) 27 ± 2.7 V;
2. Voltage of an input signal of three-phase alternating current with a frequency of 400 Hz (phase) 201.8-210 V;
3. Supply voltage of alternating three-phase current with a frequency of 800Hz (phase) 35-53 V;
4. Product weight, no more than 6.2 kg;
5. Dimensions 302 x 208 x 128 mm.

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.