K8DT-PH1TN
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Overview of Omron K8DT-PH1TN by Omron
The Omron K8DT-PH1TN is a reliable phase-sequence and phase-loss monitoring relay designed for three-phase, three-wire power supplies ranging from 200 to 480 VAC. It protects motors and industrial equipment by detecting incorrect phase sequence and phase loss during operation, ensuring stable voltage supply and preventing equipment damage. Compact and robust, it features push-in plus terminals for easy wiring and DIN rail mounting for quick installation.
Key Features of Omron K8DT-PH1TN – Omron Phase Monitoring Relay
- Phase Sequence & Phase Loss Detection: Monitors sequence and loss to prevent motor damage and system faults.
- Wide Voltage Range: Supports 3-phase 3-wire power supplies between 200 to 480 VAC, suitable for global applications.
- Automatic Reset: Resets automatically when phase conditions return to normal, enhancing operational continuity.
- Quick Response Time: Phase sequence detection within 0.1 s ± 0.05 s; phase loss detection ≤ 0.1 s.
- Push-in Plus Terminals: Cage clamp terminals allow wiring with bare stranded wires, reducing installation time.
- Compact Design: Measures 17.5 mm wide, 90 mm deep, and 90 mm high, saving panel space.
- Durable Build: Certified UL, CCC, and maritime standards (LR), with resistance to inverter noise and IP20 terminal protection.
- Indicators: Green power LED and yellow output LED for easy monitoring and diagnostics.
Technical Specs of K8DT-PH1TN
| Rated Input Voltage | 3-phase 3-wire, 200 to 480 VAC |
|---|---|
| Input Load | Approx. 2.6 VA |
| Rated Insulation Voltage | 528 VAC |
| Phase Sequence Operating Time | 0.1 s ± 0.05 s |
| Phase Loss Operating Time | 0.1 s max. |
| Reset Method | Automatic |
| Output Form | SPDT relay contact, Transistor output |
| Relay Contact Ratings | 5 A at 250 VAC (resistive), 5 A at 30 VDC (resistive) |
| Transistor Output Ratings | 24 VDC, max 50 mA |
| Ambient Temperature | -20°C to 60°C (no condensation or icing) |
| Degree of Protection | IP20 (terminals) |
| Dimensions | 17.5 × 90 × 90 mm (W × D × H) |
| Weight | Approx. 100 g |
Applications / Use Case for Omron K8DT-PH1TN
The Omron K8DT-PH1TN phase monitoring relay is ideal for protecting motors, pumps, compressors, and other three-phase equipment against incorrect phase sequence and phase loss. It is widely applied in manufacturing plants, HVAC systems, and power distribution panels to ensure safe and efficient power supply management.
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4.0 average rating
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95% positive reviews
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1% return rate