K8DS-PH1 FAZ

Overview of Omron K8DS-PH1-FAZ

The Omron K8DS-PH1-FAZ is a compact phase-sequence and phase-loss monitoring relay designed for three-phase, three-wire AC power systems. It monitors the phase sequence and detects phase loss to protect equipment from electrical faults. The device features a single SPDT relay output (normally closed operation) with LED indicators for power and relay status and mounts easily on a DIN rail.

Key Features of Omron K8DS-PH1-FAZ

• Input Voltage Range: 3-phase, 200 to 480 VAC (3-wire).
• Input Load: Approximately 2.7 VA.
• Output Relay: One SPDT relay (normally closed operation), rated 5 A at 250 VAC resistive load.
• Operating Time: Phase sequence detection time 0.1 s ± 0.05 s, phase loss detection max 0.1 s.
• Reset Method: Automatic reset upon fault resolution.
• Indicators: Power (green), Relay output (yellow).
• Operating Temperature Range: -20 to 60°C (no condensation or icing).
• Humidity Range: 25% to 85% non-condensing.
• Mounting: DIN rail for easy installation.
• Enclosure: PC and ABS with UL 94 V-0 flame retardant rating.
• Dimensions: 17.5 mm (width) × 80 mm (depth) × 74 mm (height).
• Weight: Approximately 60 g.

Technical Specifications of Omron K8DS-PH1-FAZ

Model	K8DS-PH1-FAZ
Input Voltage	3 Phase, 200–480 VAC (3-wire)
Input Load	Approx. 2.7 VA
Output Relay Rating	5 A at 250 VAC resistive, 5 A at 30 VDC
Operating Time	0.1 s ± 0.05 s (phase sequence), max 0.1 s (phase loss)
Reset Method	Automatic
Operating Temperature	-20 to 60°C
Operating Humidity	25% to 85% RH (non-condensing)
Mounting Method	DIN rail
Case Material	PC, UL 94 V-0
Dimensions (W×D×H)	17.5 × 80 × 74 mm
Weight	60 g approx.

Applications / Use Case

The K8DS-PH1-FAZ relay is commonly used in three-phase motor protection, monitoring phase loss and incorrect phase sequence to prevent damage and ensure safe electrical system operation.

---

Verification Links:
https://edata.omron.com.au/eData/LVSG/N190-E1-01.pdf
https://industrial.omron.eu/en/products/K8DS-PH1
https://www.mouser.com/datasheet/2/307/K8DS-PH_DataSheet_en_201310_N26I-E-01_N172-E1_3_1-1670177.pdf