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TRANSFORMERS & ELECTRICAL COMPONENTS
Model specificationK8AK-PH1
OMRON Phase-sequence / Phase-loss Relay · K8AK-PH1 — Product image
Measurement, Monitoring & Protection

Manufacturer product image. Refer to the order reference for the exact specification. Manufacturer image source ↗

03 / Measurement, Monitoring & Protection

OMRON Phase-sequence / Phase-loss Relay · K8AK-PH1

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Voltage-sensing monitoring relay for three-phase equipment supplies. Use it in the control circuit to detect incorrect phase sequence or loss of supply phase.

Brand
OMRON
Manufacturer
OMRON
Model
K8AK-PH1
Supply
Component sourcing on enquiry
Document reference
OMRON English K8AK-PH data sheet — ratings and wiring limitations
Model
K8AK-PH1
Rated monitored input
3-phase, 3-wire, 200–480 V AC; 50/60 Hz
Internal supply
Taken from the monitored input
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Technical data & selection

Model specification

ParameterReference data
ModelK8AK-PH1
Rated monitored input3-phase, 3-wire, 200–480 V AC; 50/60 Hz
Internal supplyTaken from the monitored input
Output1 DPDT relay
Resistive contact rating5 A at 250 V AC or 30 V DC
Input loadApproximately 4.1 VA
ResetAutomatic
Dimensions (W × H × D)22.5 × 90 × 100 mm
MountingDIN rail

The relay monitors voltage at its connection point; it does not detect downstream load-side phase loss. The 5 A rating is for a resistive load, not motor switching. Confirm contact duty and the contactor/control circuit. It is not a safety-rated emergency-stop controller.

Application & integration

Protection coordination

Review the monitored circuit and trip chain with the equipment protection schedule.

Maintenance planning

Record the existing settings, wiring and hardware version before selecting a replacement.

Manufacturer documents

Use the document for the complete order reference and delivered revision. Manufacturer links open the original source.

Prepare your enquiry

  1. Equipment single-line diagram, monitored voltage and CT/VT details.
  2. Protection function, contact/trip requirements and auxiliary supply.
  3. Communication protocol, mounting arrangement, quantity and destination.

A nameplate photograph or equipment list is enough to start. Mingkong provides component sourcing on enquiry; the offered brand, complete code, documentation and delivery terms are confirmed in the quotation.

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Plan your enquiry

Use these guides to prepare the information for equipment selection and quotation.