The Omron K8DT-AS1TA is an adjustable current-sensing relay in the K8DT series, with a trip range from 2 to 500 mA AC or DC and a NPN solid-state output. The adjustable delay from 0.1 to 30 seconds allows filtering motor inrush or transient overcurrents, so the relay only trips on sustained faults. Supply voltage is 100-240VAC, wide enough to connect directly to a control transformer without an intermediate power supply. DIN rail mounting keeps panel layout standard. The NPN output sinks current to signal a PLC or alarm.
Omron K8DT-AS1TA Current Sensing Relay, 2-500mA AC/DC, NPN O
MPNK8DT-AS1TA
Active
Omron K8DT series, current sensing relay AC/DC, NPN output, adjustable trip 2-500 mA, delay 0.1-30 sec, supply 100-240VAC, DIN rail mount.
$153.03 – $176.57Ref. price · indicative, final on quote
Source DocumentedChannel stated on listing & quote
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Independent China distributor & sourcing agent· Listing updated Sep 2026
Specifications
| Parameter | Value |
|---|---|
| Series | K8DT |
| Type | Current Sensing AC/DC |
| Parameter | Value |
|---|---|
| Supply voltage | 100 ~ 240VAC |
| Parameter | Value |
|---|---|
| Output type | Solid State |
| Parameter | Value |
|---|---|
| Operating temperature | -20°C ~ 60°C |
| Parameter | Value |
|---|---|
| Mounting type | DIN Rail |
| Parameter | Value |
|---|---|
| Circuit | NPN |
| Delay time | 0.1 Sec ~ 30 Sec |
| Trip range | 2 ~ 500mA AC/DC |
Product details
Frequently asked questions
What is the trip range of the K8DT-AS1TA?
The trip range is adjustable from 2 to 500 mA AC/DC via a dial on the front.
What type of output does it have?
It has a solid-state NPN open collector output, rated for sinking current to a load or PLC input.
What supply voltage does it require?
It operates on 100-240VAC, allowing direct connection to standard control power.
MPN
K8DT-AS1TA