AZZK-75
Aircraft Circuit Breaker
Description
AZZK-75: 75 A three-pole aircraft circuit breaker
AZZK-75 is a 75 A three-pole circuit breaker for aircraft three-phase AC power distribution. The original Cyrillic designation is АЗЗК-75. Thermal and electromagnetic releases open all three linked poles when current exceeds the permitted level, while the front actuator provides common manual switching.
Full descriptionCollapse description
Construction
The AZZK index denotes the cockpit execution used with red lighting: it has an extended handle and no luminous eye in the handle. It does not establish the exact scale of every high-current housing. Confirm the original AZZK-75 marking, current value, terminals, mounting pattern and actuator against the supplied unit.
Three power paths, common mechanical action and the complete suffix are essential identification points. Related entries AZZK-100 and AZZK-150 are provided for navigation only and do not establish interchangeability.
Electrical data and limits
Manufacturer-family data for the 75 and 100 A construction specify a 200 V three-phase AC network, 400 ±40 Hz and cos φ ≥ 0.5. The thermal release setting is 1.4 × rated current; operating time at +60 °C is up to 15 min at +60 °c. The electromagnetic release setting is 9–14 × rated current, with operation up to 10 ms. Maximum mass is 600 g, and the applicable family specification is 8Ю0.619.253 ТУ.
Network and release figures identify the execution; they do not replace the controlled time-current curve, conductor calculation, fault-current study, terminal torque, installation drawing or individual passport. Selection must account for the actual feeder, voltage, frequency, phase sequence, prospective short-circuit current and approved aircraft configuration.
Inspection and inquiry
Inspect the insulating body, metal plates, extended handle, pole sections, lugs, fasteners and mounting points for cracks, tracking, overheating, corrosion, looseness or unspecified repair. Receiving inspection should record all three pole states, common actuator travel, insulation condition and complete nameplate data.
Wikipedia provides general context on circuit breakers. Browse Aviamisto’s Circuit Breakers category. State AZZK-75 / АЗЗК-75, quantity and required documentation in the inquiry.
Technical details
- Product Type
- Three-pole aircraft circuit breaker
- Primary Designation
- AZZK-75
- Original Cyrillic Designation
- АЗЗК-75
- Family
- AZZK
- Rated Current
- 75 A
All specificationsCollapse specifications
- Number of Protected Poles
- 3
- Current Type
- Three-phase AC
- Protection Function
- Overload and short-circuit disconnection
- Release System
- Thermal and electromagnetic
- Pole Actuation
- Mechanically linked
- Manual Function
- Common three-pole switching
- Execution
- K cockpit version
- Actuator Version
- Extended handle without luminous eye
- Lighting Context
- Cockpit with red lighting
- Reference Line Voltage
- 200 V AC
- Reference Phase Voltage
- Verify for exact execution
- Reference Frequency
- 400 ±40 Hz
- Minimum Power Factor
- cos φ ≥ 0.5
- Thermal-Release Data
- 1.4 × rated current
- Thermal-Release Time
- Up to 15 min at +60 °C
- Electromagnetic-Release Data
- 9–14 × rated current
- Electromagnetic-Release Time
- Up to 10 ms
- Operating Temperature
- −60 to +60 °C
- Maximum Mass
- 600 g
- Dimensions
- Verify on drawing
- Technical Specification
- 8Ю0.619.253 ТУ
- Alternative Designations
- AZZK 75; AZZK75; АЗЗК 75; АЗЗК75
Payment & delivery
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Availability, lead time, delivery cost and payment terms are confirmed for your order before payment.
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