PHASE-LOSS

Product Description

Home > Products > Relays > OMRON > K8DS-PH1 Need Omron K8DS-PH1? Relay for Three-phase power systems. Supplied with full traceability and documentation. Request a quote and current availability today. Price & Availability 60.00 USD （参考价 / est. market price） Classified as a relay, it is positioned as a direct replacement and service part for existing installations. It is intended for use within Three-phase power systems (AC/DC), where dependable operation and a precise fit are essential to keeping the plant running. Listed as Active, it is offered as a maintained and verified spare that supports the continued operation of the installed base. Key technical specifications include: The Rated supply voltage is 200-480 VAC 50/60Hz (3-phase). Its Operating voltage range is rated at AC/DC 20.4-264V. For reference, the Frequency is 50/60 Hz. The Phase loss detection is Yes. Its Phase sequence detection is rated at Yes. For reference, the Phase unbalance detection is Yes. The Output relay is 1 SPDT (1c). Its Contact rating is rated at 5A at 250VAC (resistive load). For reference, the Operating time is 0.1-30 s (adjustable). The Reset time is 0.1-30 s (adjustable). Its Power consumption is rated at <= 3 VA. For reference, the Ambient operating temperature is -20 to 60 degC. Notable features of this unit: Detects phase loss, phase sequence, and phase unbalance in three-phase systems. Adjustable operating time and reset time for flexible application. LED indicators for power and relay status. DIN-rail mountable for easy installation. Wide operating voltage range (AC/DC 24-240V). High reliability and long service life. Typical applications include Motor protection in industrial machinery, Pump control systems in water treatment plants, HVAC systems in commercial buildings, Conveyor systems in manufacturing lines, Compressor units in refrigeration systems. It is compatible with or cross-references OMRON K8DS-PZ (phase sequence relay), OMRON K8DS-PM (phase loss and unbalance relay), OMRON S8VS power supplies, OMRON G2R relays. Within industrial automation and process-control environments, components of this type are relied upon to keep critical equipment operating safely and efficiently. They are typically specified where uptime, repeatability and a predictable maintenance cycle matter more than upfront cost. A relay such as this one forms part of a larger machine or system, so correct identification and fitment directly affect the performance and safety of the whole installation. Omron parts are widely used across power generation, manufacturing, oil and gas, water and process industries, where engineering teams standardise on proven series to simplify spares planning. When selecting a replacement, confirm the exact model designation and verify that the mechanical and electrical interface matches the unit currently installed. Cross-checking the order code, mounting style and connection type against the existing device helps avoid compatibility issues and unplanned downtime during a maintenance window. Where several variants exist, the suffix often defines voltage, range or firmware, so it should be matched precisely rather than approximated. This item is offered from our active stock of current and discontinued industrial parts. Each listing is verified against the manufacturer designation before shipment so you receive the correct part for your application. Availability and lead time vary by item; our team can confirm the fastest option for your required quantity and provide a formal quotation on request. Common questions: Regarding "What is the OMRON K8DS-PH1 used for": The OMRON K8DS-PH1 is used to protect three-phase motors and equipment by detecting phase loss, phase sequence errors, and phase unbalance, preventing damage due to abnormal power supply. Regarding "What is the operating voltage range of the K8DS-PH1": The K8DS-PH1 operates on AC/DC 24-240V, with an operating range of AC/DC 20.4-264V, making it suitable for various industrial power systems. Please contact us to confirm current pricing, availability and delivery for your required quantity; volume and project pricing are available on request. The Omron PHASE-LOSS RELAY,K8DS-PH1,OMRON is a relay. Basic Product Information Adjustable operating time and reset time for flexible application LED indicators for power and relay status DIN-rail mountable for easy installation Wide operating voltage range (AC/DC 24-240V) High reliability and long service life Detects phase loss, phase sequence, and phase unbalance in three-phase systems Technical Specifications Version & Model Difference The K8DS-PH1 is part of the K8DS series, which includes models for different monitoring functions (e.g., K8DS-PZ for phase sequence, K8DS-PM for phase loss and unbalance). The K8DS-PH1 specifically combines phase loss, phase sequence, and unbalance detection in one unit. No regional versions are known; the model is globally standardized. Application Scenarios Motor protection in industrial machinery Pump control systems in water treatment plants HVAC systems in commercial buildings Conveyor systems in manufacturing lines Compressor units in refrigeration systems What is the operating voltage range of the K8DS-PH1? The K8DS-PH1 operates on AC/DC 24-240V, with an operating range of AC/DC 20.4-264V, making it suitable for various industrial power systems. Can the K8DS-PH1 be mounted on a DIN rail? Yes, the K8DS-PH1 is designed for 35mm DIN rail mounting, allowing easy installation in control panels. Is the K8DS-PH1 suitable for single-phase systems? No, the K8DS-PH1 is specifically designed for three-phase systems only. For single-phase applications, other OMRON relays may be more appropriate. What is the OMRON K8DS-PH1 used for? The OMRON K8DS-PH1 is used to protect three-phase motors and equipment by detecting phase loss, phase sequence errors, and phase unbalance, preventing damage due to abnormal power supply. OMRON 2N-Z-156-B Standard Mechanical Limit Switch OMRON D4A-4501N Limit Switch OMRON EE-SX772A (2M) Photoelectric Sensor OMRON E3FB-DP21 Photoelectric Sensor OMRON WLCA12-2N-N Limit Switch OMRON TL-W5E1 2M Position Switch OMRON MY4N-GS DC24 Relay (4PDT, 24VDC Coil) OMRON MY4N-GS-R 220-240VAC Relay - 4PDT, 5A, Plug-in, with Indicator and Test Button