K8AK-AW3 – Omron K8AK Single-Phase Overcurrent/Undercurrent Relay, In Stock
Buy the Omron K8AK-AW3, a single-phase overcurrent/undercurrent monitoring relay for use with a K8AC-CT200L current transformer, 2 sets of SPDT output contacts. In stock and available for fast shipping. Get a quote today.
Key Technical Specifications
- Product Type: Single-phase overcurrent/undercurrent relay, K8AK-AW Series
- Housing Width: 22.5 mm (slim body)
- Current Input: Via K8AC-CT200L current transformer (direct input not possible)
- Overload Capacity: Continuous input at 120%, 30 s at 200%, 1 s at 600% (with K8AC-CT200L CT)
- Output Contacts: 2 sets of SPDT relays (AL1: terminals 11/12/14; AL2: terminals 21/22/24)
- Contact Rating: 5 A at 250 VAC (resistive load)
- Operating Time (T): Adjustable 0.1 to 30 s
- Startup Lock Time: Adjustable 0 to 30 s
- Accuracy: ±0.5% full scale (at 25°C, 65% humidity, rated supply, DC or 50/60 Hz sine wave input)
- Reset Method: Manual or automatic (selectable)
- Power Supply: No polarity on DC input terminals
- Isolation: Inputs isolated from power supply
- Indicator: LED, lit when relay is operating
Design and Performance
Simultaneous Overcurrent and Undercurrent Monitoring
The K8AK-AW3 monitors for overcurrents and undercurrents simultaneously, with separate settings and outputs for each condition, providing comprehensive current-based protection for motors and other electrical equipment.
Designed for Motor Load Monitoring
With overload capacity rated at 120% continuous, 200% for 30 seconds, and 600% for 1 second (when paired with the K8AC-CT200L CT), the K8AK-AW3 is specifically suited for monitoring motor loads that experience high startup currents without nuisance tripping.
Flexible Reset and Startup Lock Configuration
Manual and automatic resetting are both supported by a single relay, while startup lock and operating time can be set independently, giving engineers flexibility to tune the relay’s response to their specific machine’s startup characteristics.
Dual SPDT Outputs for Independent Alarm Signaling
Two independent sets of SPDT output contacts (AL1 and AL2) allow overcurrent and undercurrent conditions to trigger separate downstream alarm or shutdown circuits, supporting more granular fault response.
Isolated Inputs for Reliable, Safe Monitoring
Inputs are isolated from the power supply, helping protect the monitoring circuit from electrical noise or faults originating on the monitored power line.
Why Buy the K8AK-AW3 From Us
- In stock and ready for immediate dispatch
- Fast shipping on every order
- Commercial advisory support to help you confirm the right K8AK-AW3 and K8AC-CT200L CT pairing for your application
- Competitive pricing — get a quote in minutes
