USD 108.13
DIN-rail current monitoring relay; 24 VAC/DC. Specs: 2mA–500mA input range, adjustable startup/operating time delays, SPDT contact (5A 250VAC), and isolated current inputs.
The Omron K8AK-AS1 24VAC/DC is a reliable, ultra-slim 22.5mm single-phase current monitoring relay designed for industrial automation applications. This DIN-rail mountable device monitors for both overcurrents and undercurrents in equipment, protecting against power supply abnormalities, motor overloads, and equipment failures. It offers a broad current sensing range from 2mA up to 500mA (AC or DC) directly, and can interface with commercially available CTs for higher loads. Key features include selectable manual or automatic resetting, adjustable startup lock, and inputs completely isolated from the power supply. Featuring an SPDT contact rated for 5A at 250VAC, it is an ideal protective interface for pumps, motors, and automated process systems.
| Parameter | Value |
|---|---|
| Supply Voltage | 24 VAC/DC (20.4 to 26.4 V) |
| Phase Type | 1 Phase (Single-Phase) |
| Contact Configuration | SPDT (1c) |
| Contact Rating | 5A at 250 VAC (Resistive Load) / 5A at 24 VDC |
| Current Sensing Range | 2-20 mA, 10-100 mA, 50-500 mA (AC/DC) |
| Operating Temperature | -20 to 60°C |
| Mounting Type | DIN Rail |
| Terminal Type | Screw Terminals |
| Dimensions (H x W x D) | 90 mm x 22.5 mm x 100 mm |
| IP Rating | IP20 |
Deploys the K8AK-AS1 relay in a control panel to monitor single-phase motor current. By configuring the startup lock and overcurrent thresholds, it ignores inrush currents while actively monitoring for sustained overloads caused by mechanical jamming.
Prevents motor burnout and mechanical damage by triggering a shutdown or alarm before a catastrophic failure occurs.
Integrates the current monitoring relay with a pump's control logic to detect undercurrent conditions. When a pump loses prime or runs dry, the electrical load drops; the relay detects this within the 2mA to 500mA sensing range and switches the 5A contact.
Eliminates pump seal failure and impeller damage caused by operating without fluid medium.
Utilizes the K8AK-AS1 to supervise the current drawn by a critical single-phase process heater. If a heating element burns out, the current falls below the programmed threshold, immediately triggering the relay's isolated SPDT output to alert the PLC.
Reduces defective product yield by immediately identifying open circuits in heating elements before process temperatures drop.
