Omron Phase, Voltage Monitoring Relay, 3 Phase, SPST, DIN Rail
- RS Stock No.:
- 111-3138
- Mfr. Part No.:
- K8DT-PM2TN
- Brand:
- Omron
Subtotal (1 unit)*
£108.58
(exc. VAT)
£130.30
(inc. VAT)
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- Shipping from 25 December 2025
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Units | Per unit |
|---|---|
| 1 + | £108.58 |
*price indicative
- RS Stock No.:
- 111-3138
- Mfr. Part No.:
- K8DT-PM2TN
- Brand:
- Omron
Specifications
Technical Reference
Legislation and Compliance
Product Details
Find similar products by selecting one or more attributes.
Select all | Attribute | Value |
|---|---|---|
| Brand | Omron | |
| Monitoring Application | Phase, Voltage | |
| Electrical Phase | 3 | |
| Contact Configuration | SPST | |
| Voltage Sensitivity | Overvoltage, Undervoltage | |
| Mounting Type | DIN Rail | |
| Phase Sensitivity | Phase Loss, Phase Sequence | |
| Time Delay | 250ms | |
| Series | K8DT-PM | |
| Length | 90mm | |
| Maximum Operating Temperature | +60°C | |
| Minimum Operating Temperature | -20°C | |
| Dimensions | 90 x 17.5 x 90mm | |
| Height | 90mm | |
| Operating Temperature Range | +60°C | |
| Width | 17.5mm | |
| Terminal Type | Screw | |
| Number of Poles | 1 | |
Select all | ||
|---|---|---|
Brand Omron | ||
Monitoring Application Phase, Voltage | ||
Electrical Phase 3 | ||
Contact Configuration SPST | ||
Voltage Sensitivity Overvoltage, Undervoltage | ||
Mounting Type DIN Rail | ||
Phase Sensitivity Phase Loss, Phase Sequence | ||
Time Delay 250ms | ||
Series K8DT-PM | ||
Length 90mm | ||
Maximum Operating Temperature +60°C | ||
Minimum Operating Temperature -20°C | ||
Dimensions 90 x 17.5 x 90mm | ||
Height 90mm | ||
Operating Temperature Range +60°C | ||
Width 17.5mm | ||
Terminal Type Screw | ||
Number of Poles 1 | ||
- COO (Country of Origin):
- CN
K8DT-PM Three Phase Under/Over Voltage, Phase Sequence and Loss
Omron K8DT-PM three phase sequence and phase loss monitor protects motors and other equipment from unstable voltages, detecting phase sequence and phase loss for three-phase power supplies.
Phase loss detection while the motor is operating
Greater resistance to inverter noise
Width of 17.5 mm to reduce space required in panels
Push-In Plus Terminal that reduce wiring work
Double-insertion holes for crossover wiring (all terminals)
Greater resistance to inverter noise
Width of 17.5 mm to reduce space required in panels
Push-In Plus Terminal that reduce wiring work
Double-insertion holes for crossover wiring (all terminals)
K8DT-PM Monitoring Three Phase Voltage and Phase-Loss Sequence Relay.
• Downsize control panels.
• Reduced wiring.
• Detects errors in Motors and other equipment via current changes.
• Use in either over current or under current mode.
• Function as an alarm.
• Set threshold values.
• Alarm output can be set as a relay or transistor output.
• Input signal – Voltage, current, water level electrode and temperature (thermocouple or platinum resistance thermometer) can be input.
• Lower power consumption.
• Side by side mounting is possible.
• Long term contact reliability.
• Reliable in poor noise environments.
• Slim profile 17.5 mm
• Reduced wiring.
• Detects errors in Motors and other equipment via current changes.
• Use in either over current or under current mode.
• Function as an alarm.
• Set threshold values.
• Alarm output can be set as a relay or transistor output.
• Input signal – Voltage, current, water level electrode and temperature (thermocouple or platinum resistance thermometer) can be input.
• Lower power consumption.
• Side by side mounting is possible.
• Long term contact reliability.
• Reliable in poor noise environments.
• Slim profile 17.5 mm
K8DT-PM2TN Three-Phase 3-Wire Model.
• Three Phase Voltage Monitoring Relay.
• Phase-Sequence Phase Loss relay.
• 3-Wire.
• Transistor output.
• Input voltage 3-phase, 3-wire 380 to 480 V ac.
• Input load 2.7 Va
• Phase sequence 0.1 s ±0.05 s
• Phase loss 0.1 s maximum.
• Current capacity 10 A (per pole)
• Insertions 50 times.
• Phase-Sequence Phase Loss relay.
• 3-Wire.
• Transistor output.
• Input voltage 3-phase, 3-wire 380 to 480 V ac.
• Input load 2.7 Va
• Phase sequence 0.1 s ±0.05 s
• Phase loss 0.1 s maximum.
• Current capacity 10 A (per pole)
• Insertions 50 times.
Features and Benefits.
• Automatic reset
• Green LED Power (PWR)
• Yellow LED output (OUT)
• Red LED output (OVER) and (UNDR)
• One SPDT contact relay.
• DIN Rail Mounted or Screw Mounted.
• Weight 100 g
• Case material PC, UL 94 V-0.
• Colour N1.5
• Protection IP20 (terminals)
• Green LED Power (PWR)
• Yellow LED output (OUT)
• Red LED output (OVER) and (UNDR)
• One SPDT contact relay.
• DIN Rail Mounted or Screw Mounted.
• Weight 100 g
• Case material PC, UL 94 V-0.
• Colour N1.5
• Protection IP20 (terminals)
What is a Monitoring / Measuring Relay?
A monitoring / measuring relay is a protective control device, various types are available suiting what you wish to monitor. The relays receive input signals then monitor them and then output an alarm signal when a set value is reached (alarm relays). The relays protect your equipment against over voltage and over current faults. Monitoring relays monitor AC power supplies, voltage and current, analogue signals detecting unusual activity in equipment against set alarm thresholds.
Types of Monitoring Relays Available?
• Motor protection relays
• Temperature monitoring relays
• Water level control relays
• Voltage
• Current
• Temperature monitoring relays
• Water level control relays
• Voltage
• Current
Standards
EN 60947-5-1, UL 60947-5-1, IP 20 Terminals
Omron K8DT Series Control Relays
Omron K8DT measuring and monitoring relays are part of the Value Design for Panel concept that takes control panel design and manufacturing to a new level. The K8DT series protect important equipment from damage using various measuring and monitoring relays that conform to international safety standards. Low power consumption and low heat generation design offer a long service life.
Space Saving
The K8DT series can help downsize control panels by reducing the width between wiring ducts and void panel space. The slim body allows space to mount more devices in the same size of control panel to increase control panel functionality.
Push-In Plus Terminals
Push-In Plus terminal blocks on all K8DT relays reduce the time and work involved in wiring. The Push-In Plus terminals allow solid and stranded wires with pin terminals or ferrules to be inserted without the need for tools.