V-502 (3.215.546)
Aircraft Rectifier
Description
V-502 rectifier unit in KURS MP-70 equipment
The V-502 is an aircraft rectifier power supply unit used with KURS MP navigation and landing equipment. Its task is straightforward: it takes aircraft AC power and supplies DC voltage to the connected radio navigation units. In the aircraft, this is not a navigation receiver and not an indicator. It is part of the electrical support circuit for the system. The unit is usually considered together with the KURS MP-2 or KURS MP-70 equipment set, receiver blocks, cockpit indicators, wiring, and avionics rack installation.
Full descriptionCollapse description
Power conversion function of the V-502 unit
The V-502 converts AC input from the aircraft electrical system into stabilized DC output used by onboard navigation and landing equipment. This DC supply is needed for units working in course and glide path channels, where unstable power can affect system operation or lead to incorrect fault tracing during maintenance. The rectifier itself does not process radio signals. It only provides the required electrical supply for the equipment around it.
V-502 in KURS MP-2 and KURS MP-70 systems
The rectifier is associated with KURS MP-2 and KURS MP-70 instrument landing and navigation systems. These systems are used for en route radio navigation and approach tasks on aircraft equipped with Soviet and Russian avionics architecture. In such installations, V-502 works as one of the supporting electrical modules. If the system has power-related faults, technicians normally check the rectifier together with input supply, load circuits, connectors, grounding, receiver units, and the aircraft wiring diagram.
Aircraft installation of V-502 rectifier
The V-502 is installed in aircraft avionics power circuits, normally in or near avionics racks where KURS MP equipment is mounted. The exact location depends on the aircraft type and modification. Civil and military transport aircraft fitted with KURS MP-2 or KURS MP-70 may have different rack layouts, cable routes, and connector arrangements. For replacement, it is better to confirm the part number and drawing number from the aircraft documentation rather than rely only on the system name.
Identification and ordering of V-502
Before ordering a V-502 rectifier, the marking on the unit should be checked against the aircraft parts catalog, system documentation, or product passport. The unit may also be referenced by drawing number 3.215.546. If the aircraft documentation lists a different execution or a modified rack configuration, the power output and connector match should be confirmed before supply. The product is also known under alternative designations V-502 and 3.215.546.
V-502 (3.215.546): identification and purpose
V-502 (3.215.546) is classified as a Aircraft Rectifier and converts AC input into DC power for associated aircraft equipment. Select it by the complete designation, series, execution, marking and approved documentation. Similar lettering, housing or connector geometry does not establish identical operating data.
This historical category contains several types of transducing devices. PT, PO and PTS products relate to electrical-power conversion, while PMI, PMT and PMM designations identify vacuum-gauge transducers. Each page therefore follows the actual product function rather than the broad category name. A suffix, series number or extra letter can indicate a materially different circuit, pressure range, rating or interface.
Function and operating circuit
The item converts AC input into DC power for associated aircraft equipment. Exact input and output conditions depend on the execution. For a power converter, verify voltage, current type, frequency, phase arrangement, rated output, connectors and cooling. For a vacuum transducer, verify the measurement principle, pressure range, operating mode, vacuum connection and compatible measuring instrument.
Numerical values retained from the original catalogue record appear in Technical Details and must be compared with the passport for the actual unit. An aircraft platform or installation system is not assigned by analogy when a reliable source is unavailable.
Selection and compatibility checks
Before replacement, compare the primary and alternative designations, series, input and output ratings, dimensions, mass, connectors, mounting, cooling and documented environmental limits. For a vacuum sensor, additionally compare the conversion constant, emission current or heater resistance where the passport specifies those values.
Related members of one family may use different voltage, frequency, power, pressure range, mounting interface or purpose. The related links below support catalogue navigation and do not establish interchangeability. General technical background is available under Aircraft Rectifier.
Incoming inspection and installation
Check the marking and supporting records, housing, connectors, terminals, vacuum fitting, mounting points, seals and any evidence of overheating, impact or corrosion as applicable. Bench testing must follow the documentation for the exact execution; an improvised test voltage or vacuum regime can damage the product.
Install the unit only in the intended circuit with the documented polarity, supply mode, load, cooling and safety provisions. After installation, complete the prescribed functional check. External integrity alone does not demonstrate serviceability or calibration.
Related catalogue positions
Functionally related catalogue products include PE-11M, PO-750A-2S, PTS-800BM, PMI-10-2. They are selected by actual type and family for navigation and do not imply compatibility. More positions are available in the Power Transducers category.
Enquiry information
An enquiry for V-502 (3.215.546) should state the exact designation, quantity, required condition, marking photograph, delivery scope and required documents. When available, include the designation of the equipment and item being replaced. Price, actual availability, lead time and condition of a specific unit are confirmed separately.
Technical details
Product Type: Aircraft Rectifier
Primary Designation: V-502 (3.215.546)
Alternative Designations: V-502 (3.215.546); V-502(3.215.546); V 502 (3.215.546); В-502 (3.215.546)
Function: converts AC input into DC power for associated aircraft equipment
Selection Basis: Exact designation, execution, marking and documentation for the specific equipment
Application: Only as supported by the passport, illustrated parts catalogue or approved installation documentation
Interchangeability: Not established by a related designation, matching base, housing or appearance alone
Inspection: Verify electrical ratings, contacts or connector, mounting, construction and required operating mode
Enquiry Data: Designation, quantity, condition, marking photograph, delivery scope and required documents
Documentation: Product passport and approved operating or repair documentation
Category: Power Transducers
All specificationsCollapse specifications
Retained Technical Data:
Product Type: Aircraft rectifier power supply unit
Part Number: V-502
Drawing Number: 3.215.546
Function: Conversion of AC power to stabilized DC voltage
Application / Where Used: KURS MP-2 / KURS MP-70 systems
System / Installation Area: Aircraft avionics power circuits
Input Voltage: 109–121 V AC, 400 Hz
Output Voltage: 27 ±2.4 V DC at 0.2 A load; 27 ±1.8 V DC at 0.5 A load
Operating Current Range: 0.2–0.9 A
Weight: Not more than 2.2 kg
Technical Documentation: Manufacturer passport
Payment & delivery
Orders ship from our hub in Dubai. Partner stock is first transferred to Dubai, then shipped to you.
Dubai stock: 100% before dispatch. Partner stock (Remote stock) and Pre-order: 50% advance payment to start the order and 50% before shipment from Dubai to you.
Availability, lead time, delivery cost and payment terms are confirmed for your order before payment.
Payment & delivery terms