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K8DS-PH1

K8DS-PH1 Phase Sequence Relay | Voltage Monitoring Relay | 3-Phase Protection | 200-480VAC | DIN Rail Mount

SKU: K8DS-PH1

Omron K8DS-PH1 phase sequence and voltage monitoring relay for industrial 3-phase systems. Protects machinery from phase loss, reversal, and voltage imbalance. DIN rail mount, 200-480VAC range.

1-Year Warranty Full manufacturer warranty
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Product Overview

The Omron K8DS-PH1 Phase Sequence Relay is a critical protection device designed to safeguard industrial motors, pumps, compressors, and other 3-phase equipment from costly damage caused by incorrect phase sequence (rotation), phase loss, or significant voltage imbalance. By continuously monitoring all three phases (L1, L2, L3), this DIN rail-mounted relay prevents machinery from starting or automatically shuts it down under fault conditions, ensuring operational safety and reliability. It features a wide operating voltage range of 200-480VAC and offers adjustable response delays to prevent nuisance tripping from transient voltage fluctuations. With a compact design, clear LED status indicators for power and relay output, and a robust SPDT output relay contact, the K8DS-PH1 is an essential component for maintaining the integrity of automation systems, HVAC equipment, and industrial machinery, helping to avoid downtime and expensive repairs.

  • SKU: K8DS-PH1
  • Series: K8DS-PH1
  • Voltage: 200 TO 480 VAC
  • I/O: 1 I/O

Best-Fit Applications

  • Direct replacement and maintenance inventory planning for relays assemblies.
  • Machine build and retrofit projects where verified Omron part authenticity is required.
  • Urgent breakdown recovery when lead time and logistics coordination impact downtime costs.

Buying Checklist

  • Confirm full SKU suffix and revision before ordering to prevent compatibility issues.
  • Include destination country and required date when requesting quote for accurate freight options.
  • Share quantity tiers to receive optimized unit pricing for pilot and production batches.
  • This model is part of the K8DS-PH1 line, useful for family-level replacement matching.
  • Electrical selection signal: 200 TO 480 VAC.
  • Typical I/O reference for this model: 1 I/O.

Technical Specifications

Function Phase Sequence, Phase Loss, Voltage Imbalance Detection
Rated Supply Voltage 200 to 480 VAC, 50/60 Hz
Phase 3-Phase
Output Contact SPDT Relay (1c), 5A 250VAC
Mounting DIN Rail (35mm)
Response Time Adjustable Delay (Typ. 0.1s to 10s)
Indicators Power ON (Green), Relay ON (Yellow)
Operating Temperature -25°C to +55°C

FAQ for K8DS-PH1

Is K8DS-PH1 available for immediate shipment?
Many popular SKUs are available from stock. Share required quantity and destination to confirm exact lead time.
Can you help verify if K8DS-PH1 matches my existing part?
Yes. Send your current part label, machine model, or photo and we can validate compatibility before ordering.
Do you provide warranty and authenticity support?
Yes. We supply genuine Omron products with warranty support and can provide origin and packing evidence when requested.

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