Description
The Omron K8AK-PH1 is a high-performance three-phase monitoring relay designed for industrial automation applications. This relay utilizes voltage detection technology to monitor phase sequence and phase loss in three-phase, three-wire systems. It features a compact 22.5mm width for space-saving DIN rail mounting and provides reliable protection against motor reverse operation and phase failure. With a wide input voltage range of 200 to 480V AC, it is suitable for various industrial power systems. The device includes LED indicators for power and relay status, ensuring easy monitoring and diagnostics in control panels.
Key Features
- Type: Phase-sequence and Phase-loss Monitoring Relay
- Detection Method: Voltage detection
- Input Configuration: 3-phase, 3-wire
- Input Voltage Range: 200 to 480V AC
- Output Relay: DPDT (2 Form C) x 1
- Mounting: DIN rail
- Width: 22.5 mm
- Indicators: Power (Green), Relay (Yellow)
- Country of Origin: Japan
Technical Specifications
- Rated Input Voltage: 3-phase, 200 to 480V AC (3-wire)
- Input Load: Approx. 4.1 VA
- Operating Time: Phase sequence: 0.1 s ±0.05 s; Phase loss: 0.1 s max.
- Reset Method: Automatic reset
- Output Relay Type: DPDT (Normally Closed operation)
- Rated Load: Resistive load: 5 A at 250 VAC; 5 A at 30 VDC
- Minimum Load: 24 VDC, 4 mA (reference values)
- Mechanical Life: 10 million operations min.
- Electrical Life: 50,000 operations (5A at 250VAC/30VDC); 100,000 operations (3A at 250VAC/30VDC)
- Ambient Operating Temperature: -20 to 60°C (with no condensation or icing)
- Storage Temperature: -25 to 65°C (with no condensation or icing)
- Ambient Operating Humidity: 25% to 85% (with no condensation)
- Altitude: 2,000 m max.
- Terminal Screw Tightening Torque: 0.49 to 0.59 N·m
- Housing Material: PC+ABS
- Weight: approx. 130 g
- Dimensions: 22.5 mm (W) × 90 mm (H) × 100 mm (D)
- Standards: EN 60947-5-1, UL 508, CCC: GB/T 14048.5
Warranty & After-Sales
- Factory new units: 12 months warranty
- Refurbished units: 3-6 months warranty
- Technical support for configuration and installation
- Wiring and mounting assistance
- Compatibility verification with existing systems
- Commissioning and diagnostics support available
Delivery Time
- Standard delivery: 3-5 working days
- Express shipping available upon request
Why Choose Our Store
- Genuine Omron components
- Global supply network with competitive pricing
- Expertise in industrial automation systems
- Comprehensive technical documentation
- Responsive customer service and support
Applications
- Motor protection against reverse operation
- Phase loss detection in automated production lines
- Material handling and conveyor systems
- Packaging machinery
- Robotics and automation
- Quality control and inspection systems
- Machine safety and position monitoring
- Logistics and warehousing systems
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