Omron K8AK-VW2 24VAC/DC Voltage Monitoring Relay: Technical Guide, Applications and Installation
The Omron K8AK-VW2 24VAC/DC is a Voltage Monitoring Relay developed for engineers who understand that the cost of an unplanned stop far exceeds the cost of a quality component. Rated at 24V AC/DC, it addresses real challenges found in PLC power supply protection without overcomplicating installation or maintenance.
Component selection rarely happens in isolation. Alongside this relay or switch, many integrators also evaluate Omron Omron Sensor technologies — inductive proximity, photoelectric, and ultrasonic models that can directly trigger the very outputs this product controls.
Understanding the Omron K8AK-VW2 24VAC/DC Voltage Monitoring Relay
The Omron K8AK-VW2 24VAC/DC is a Voltage Monitoring Relay rated at 24V AC/DC, built to handle PLC power supply protection reliably over a long service life. Key engineering features include over/under voltage detection, time-delay output, led indicator, and the unit mounts via din rail.
Technically, the Omron K8AK-VW2 24VAC/DC delivers over/under voltage detection, time-delay output, led indicator. Matching the 24V AC/DC control bus requires no extra hardware, which keeps commissioning time short and the panel design clean.
Core Specifications
The table below summarises the main technical parameters of the Omron K8AK-VW2 24VAC/DC. For full specifications, always refer to the official Omron product datasheet, as application-specific derating may apply.
| Parameter | Value |
|---|---|
| Product Type | Voltage Monitoring Relay |
| Coil / Operating Voltage | 24V AC/DC |
| Contacts / Channels | 1 relay output |
| Contact Current | 5 A |
| Key Features | Over/under voltage detection, time-delay output, LED indicator |
| Mounting | DIN rail |
| Operating Temperature | -10 °C to +55 °C |
Application Scenarios
The Omron K8AK-VW2 24VAC/DC Voltage Monitoring Relay is commonly specified for the following applications:
- Plc power supply protection
- Motor voltage monitoring
- Ups systems
Across these use cases, the consistent thread is a need for dependable switching over a large number of operations, often in environments where an unplanned fault would create significant disruption. The Omron K8AK-VW2 24VAC/DC is designed with exactly those conditions in mind.
Getting It Right at Installation
Commissioning the Omron K8AK-VW2 24VAC/DC Voltage Monitoring Relay is straightforward. Snap or screw it into position on the DIN rail, connect cables at the correct terminals, and confirm polarity where applicable. During the first powered test, verify that the indicator LED (where fitted) responds correctly and that the output contacts behave as expected under a controlled test load.
For ongoing maintenance, periodically inspect for contact discolouration, check terminal screws for loosening, and look for any signs of heat stress on the housing. Catching these early avoids the much larger cost of an unplanned production stop.
Why Engineers Choose Omron
Specifying the Omron K8AK-VW2 24VAC/DC Voltage Monitoring Relay also means specifying into an ecosystem. Omron’s portfolio covers relays, sensors, PLCs, power supplies, and more — all engineered to work together. When a component does eventually need replacing, compatibility with the rest of the system is guaranteed, which is something off-brand alternatives simply cannot offer.
Frequently Asked Questions
What applications is the Omron K8AK-VW2 24VAC/DC designed for?
The Omron K8AK-VW2 24VAC/DC Voltage Monitoring Relay is designed primarily for PLC power supply protection, motor voltage monitoring, UPS systems. Its construction and contact ratings make it well suited to both continuous-duty and intermittent switching in these environments.
What coil voltage does the Omron K8AK-VW2 24VAC/DC use?
The Omron K8AK-VW2 24VAC/DC operates at a coil voltage of 24V AC/DC. Always verify that your control circuit voltage matches before installation.
Does the Omron K8AK-VW2 24VAC/DC require a specific socket?
Yes, Omron designs its relay families to work with specific matched sockets. Using a non-specified socket can affect contact pressure and shorten service life. Refer to the Omron K8AK-VW2 24VAC/DC datasheet for the compatible socket model.
What certifications does the Omron K8AK-VW2 24VAC/DC carry?
Omron products are manufactured to CE and UL standards, with additional certifications depending on the model. Product-specific certification details are available in the official Omron datasheet and on the product label.
Where can I source the Omron K8AK-VW2 24VAC/DC in Europe?
The Omron K8AK-VW2 24VAC/DC Voltage Monitoring Relay is available through Omron’s authorised European distributors. Purchasing through official channels ensures product authenticity, full warranty coverage, and access to technical support.

