AOF-3M-2-10A
Phase-Loss Protector
Description
AOF-3M-2-10A: automatic phase-disconnection unit
AOF-3M-2-10A is a modernized aircraft automatic phase-disconnection unit with a 2–10 A sensing range. The original Cyrillic designation is АОФ-3М-2-10А. It monitors a three-phase supply and disconnects the consumer after loss of one or two phases. This function distinguishes it from a conventional branch circuit breaker; the complete designation and monitored network must be retained in an inquiry.
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Function
Electrical and operating data identify three-phase 36, 115 and 200 V networks at 400 ±20 Hz, with 27 V control circuits. The specified response interval is 1–2 seconds. The enclosure is approximately 145 × 61 × 70 mm and mass is no more than 0.6 kg. Check the connector arrangement, mounting points and all marking against the product passport, because a similar enclosure does not confirm the same internal calibration.
Nearby products AZR-80 and AZR-100 are shown only for navigation.
Technical data
The designation records the AOF-3M modernized family and the 2–10 A sensor-current range. The protection action is phase-loss detection followed by consumer disconnection. The operating threshold, connector pin assignment, reset logic and compatibility with a particular aircraft installation must be taken from the approved wiring diagram and the passport for the individual unit.
Before testing, confirm all three monitored phases, frequency, control voltage and safe isolation of the downstream consumer. Use calibrated equipment and the maintenance procedure applicable to the aircraft system.
Inspection and inquiry
Inspect the enclosure, connector, mounting feet, fasteners and seals for impact damage, corrosion, overheating or unspecified repair. Do not energize a unit with damaged insulation or uncertain pin assignments. Wikipedia provides general context on three-phase electric power. Browse Aviamisto’s electrical protection catalog. State AOF-3M-2-10A / АОФ-3М-2-10А, quantity and required documentation in the inquiry.
Technical details
- Product Type
- Automatic phase-disconnection unit
- Primary Designation
- AOF-3M-2-10A
- Original Cyrillic Designation
- АОФ-3М-2-10А
- Family
- AOF-3M
- Modification
- Modernized
All specificationsCollapse specifications
- Monitored System
- Three-phase aircraft power network
- Protection Function
- Phase-loss detection
- Trip Condition
- Loss of one or two phases
- Output Action
- Consumer disconnection
- Monitored Phases
- 3
- Network Voltage 1
- 36 V AC
- Network Voltage 2
- 115 V AC
- Network Voltage 3
- 200 V AC
- Network Frequency
- 400 ±20 Hz
- Control-Circuit Voltage
- 27 V
- Sensor-Current Range
- 2–10 A
- Minimum Sensor Current
- 2 A
- Maximum Sensor Current
- 10 A
- Response Time
- 1–2 s
- Minimum Response Time
- 1 s
- Maximum Response Time
- 2 s
- Overall Dimensions
- 145 × 61 × 70 mm
- Length
- 145 mm
- Width
- 61 mm
- Height
- 70 mm
- Maximum Mass
- 0.6 kg
- Alternative Designations
- AOF 3M 2 10A; AOF3M210A; АОФ 3М 2 10А
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