K8AK-PW2

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Overview of Omron K8AK-PW2

The Omron K8AK-PW2 is a three-phase voltage monitoring relay designed for monitoring overvoltage and undervoltage conditions in industrial power systems. It supports both three-wire and four-wire three-phase systems with input voltage ranges of 380V to 480V (three-wire) and 220V to 277V (four-wire). The relay provides two SPDT output contacts for separate signaling of overvoltage and undervoltage conditions.

Key Features of Omron K8AK-PW2

  • Rated Input Voltage: Three-phase three-wire: 380, 400, 415, 480 VAC; Three-phase four-wire: 220, 230, 240, 277 VAC
  • Input Power Consumption: Approx. 4.4 VA
  • Operating Value Setting Range: Overvoltage & undervoltage adjustable from -30% to +25% of rated input voltage via DIP switches
  • Automatic Reset: 5% of operating value (fixed)
  • Operating Time Setting Range: 0.1 to 30 seconds (adjustable)
  • Power ON Lock Time: Selectable 1s or 5s via DIP switch
  • Output Relays: Two SPDT (Single Pole Double Throw) relays with 5A resistive load at 250 VAC or 30 VDC capability
  • Indicators: Power (green), Relay output (yellow), and Over/Under voltage (Red)
  • Operating Temperature: -20°C to 60°C (No condensation or icing)
  • Protection Level: IP20
  • Mounting: DIN rail mountable, compact 22.5 mm width
  • Safety & EMC Standards: Complies with standards EN60947-5-1, UL 508, CSA C22.2, CCC GB/T 14048.5

Technical Specifications of K8AK-PW2:

Model Number K8AK-PW2
Rated Input Voltage 380-480 VAC (3-wire), 220-277 VAC (4-wire)
Input Power Consumption Approx. 4.4 VA
Overvoltage/Undervoltage Range -30% to +25% (adjustable)
Reset Value 5% of operating value (fixed)
Operating Time Setting 0.1 to 30 seconds
Power ON Lock Time 1 s / 5 s selectable
Output Relays Two SPDT, 5 A at 250 VAC/30 VDC
Operating Temperature -20°C to 60°C
Protection Level IP20
Dimensions 22.5 x 90 x 100 mm (W x H x D)
Weight Approx. 150 g

Applications / Use Case

The Omron K8AK-PW2 is ideal for monitoring three-phase power supply voltages in industrial plants and machinery to protect equipment from damage due to overvoltage or undervoltage conditions. It helps maintain power quality and ensures safe operation of motors and power systems through early fault detection and control system integration.

K8AK-PW2

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Does it come with a warranty?

Yes, All products are offered wth 1-Year warranty.

What is the condition of the product?

All products sold are New & Unused.

How fast is shipping?

All products are delivered within 2-8 business days depending on our stock location.

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