The Omron K8DT-PZ1TN protects three-phase motors from phase loss or incorrect phase sequence, with an adjustable time delay from 0.1 s to 30 s to ride through momentary glitches without false trips. DIN-rail mounted, solid-state output in an NPN configuration, powered at 200–240 VAC, and rated for an ambient range of -20°C to 60°C.

Omron K8DT-PZ1TN Phase Loss Relay, 0.1-30s Delay
MPNK8DT-PZ1TN
Active
Omron K8DT series phase loss and phase sequence relay, solid-state output, 200-240VAC supply, adjustable delay 0.1–30 s, NPN circuit.
$209.98 – $216.66Ref. price · indicative, final on quote
StockContact for availability
MOQ1 pcs
Sourced new & surplus through independent channelsListing updated Jun 2026
Specifications
Identification
| Parameter | Value |
|---|---|
| Series | K8DT |
| Type | Phase Loss, Phase Sequence |
Electrical
| Parameter | Value |
|---|---|
| Supply voltage | 200 ~ 240VAC |
I/O
| Parameter | Value |
|---|---|
| Output type | Solid State |
Environmental
| Parameter | Value |
|---|---|
| Operating temperature | -20°C ~ 60°C |
Mechanical
| Parameter | Value |
|---|---|
| Mounting type | DIN Rail |
Other specifications
| Parameter | Value |
|---|---|
| Circuit | NPN |
| Delay time | 0.1 Sec ~ 30 Sec |
Product details
Frequently asked questions
What does the K8DT-PZ1TN monitor?
It monitors phase loss and phase sequence on three-phase supplies.
What is the supply voltage range?
200–240 VAC.
MPN
K8DT-PZ1TN