High Power Aviation Single DC Contactor MZJ-200A 200A

Product Overview

The YM Military Aviation Contactor MZJ-200A is a high-performance, single-phase sealed contactor designed for demanding aerospace power distribution applications. Engineered to replace JQ-40F contactors while providing enhanced 200A current handling capacity, this military-grade component is essential for drone systems, aircraft engines, and critical aviation power networks. As part of YM's comprehensive range of High Power Aviation Contactors and complementary to our portfolio of Military Aviation Connectors, the MZJ-200A is designed to integrate seamlessly with systems utilizing Hydraulic Circuit Breakers and Aviation Magnetic Valves, ensuring robust power management in extreme operating environments.

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Technical Specifications

Precision-engineered for high-current single-phase aerospace applications:

• Current Rating: 200A continuous current capacity
• Compatibility: Direct replacement for JQ-40F contactors with enhanced performance
• Coil Power Consumption: 0.3W to 0.43W efficient operational range
• Contact Load & Electrical Life:
  • Resistive Load: 1A at 28V DC for 1×10⁶ operations
  • Low-Level Load: (10-50)μA at (10-50)mV for 1×10⁶ operations
• Contact Resistance: Initial ≤50mΩ; post-lifetime ≤200mΩ
• Switching Performance: Action time ≤4ms, release time ≤4ms (typical ≤3ms); requires (10-50)ms incentive pulse width
• Dielectric Strength: 500V RMS @ 50Hz (normal pressure); 250V RMS @ 50Hz (low pressure)
• Insulation Resistance: >500MΩ initially; >50MΩ after endurance testing
• Weight: Under 3 grams despite 200A capacity
• Sealing Performance: Leakage rate ≤1.0×10⁻³ Pa·cm³/s (hermetic metal seal)
• Operating Temperature: Rated for standard 25°C conditions
• Phase Configuration: Single-phase design for high-current applications

Product Features & Advantages

1. High-Current Capacity: Engineered for 200A single-phase power switching, ideal for main power distribution in aerospace systems.
2. Direct JQ-40F Replacement: Full compatibility with JQ-40F systems while providing enhanced current handling capability.
3. Advanced Hermetic Sealing: Incorporates Metal Sealing technology used in our Military Metal Relays for complete environmental protection.
4. Enhanced Thermal Performance: Optimized design for heat dissipation at high currents, compatible with systems using Aviation Cold Air Solenoid Valves.
5. Compact High-Power Design: Delivers 200A capacity in an ultra-lightweight package under 3 grams.

Installation & Replacement Procedure

For JQ-40F replacement and new system integration:

1. System Safety Preparation: Ensure complete system de-energization following aviation safety protocols.
2. Existing System Documentation: Document wiring configuration and terminal positions if replacing JQ-40F contactor.
3. Component Removal: Carefully remove existing contactor from mounting position.
4. MZJ-200A Installation: Mount the MZJ-200A using appropriate hardware, ensuring proper terminal orientation.
5. High-Current Wiring: Connect 200A-capacity wiring to main terminals using appropriate gauge conductors.
6. Control Circuit Connection: Connect control signals to coil terminals, observing voltage specifications.
7. System Validation Testing: Perform comprehensive functional testing including load testing up to 200A capacity.

Application Scenarios

• High-Power UAV Systems: Main power switching for large drone propulsion and heavy payload systems.
• Aircraft Power Distribution: Primary power control in commercial and military Aircraft Electrical Systems.
• Aircraft Engine Starter Circuits: High-current switching for engine starting and control systems.
• Ground Power Units: Power control in high-capacity aviation ground support equipment.
• Military Vehicle Systems: High-current power distribution in military ground and air platforms.
• Test & Simulation Equipment: High-power switching in aviation test benches and training simulators.

Value for Procurement Teams: The MZJ-200A provides reliable 200A power control in a compact, sealed package, offering system upgrade capabilities for JQ-40F installations while reducing system complexity, improving power distribution efficiency, and enhancing overall reliability for high-current aerospace applications.

Certifications & Compliance

Manufactured under quality systems designed for high-power aerospace applications. While specific certifications depend on customer requirements and applications, our production processes ensure performance consistency and reliability for 200A power switching. This commitment to quality is demonstrated across our product range including Military Pressure Sensors and Aviation Encoding Switches.

Customization Options

Available customization for specific high-current applications:

• Specific coil voltage configurations for different control system requirements
• Custom terminal arrangements for unique high-current wiring configurations
• Specialized mounting configurations for integration with existing power panels
• Application-specific current rating adjustments (within design parameters)
• Custom identification marking for maintenance and traceability

Production & Quality Assurance

1. High-Current Component Selection: Special materials selected for 200A operation and durability.
2. Precision Manufacturing: Automated assembly ensuring consistent quality and performance characteristics.
3. Hermetic Sealing Process: Advanced sealing techniques for complete environmental protection in aerospace conditions.
4. Comprehensive Electrical Testing: 100% testing including contact resistance, high-current performance, and insulation characteristics.
5. Environmental Validation: Rigorous testing for vibration resistance, thermal performance under 200A load, and seal integrity.

This stringent quality approach, consistent with our production of Solid State Relays and Industrial Power Relays, ensures every MZJ-200A delivers reliable high-current performance in the most demanding aerospace power applications.