OMRON K8DT-PHPower Supplies / In Addition/ Measuring / Motor Protective Relays/Component Protective Components

OMRON K8DT-PH Power Supplies / In Addition

• K8DT-PH Phase-sequence Phase-loss Relay/Lineup
• K8DT-PH Phase-sequence Phase-loss Relay/Dimensions
• K8DT-PH Phase-sequence Phase-loss Relay/Specifications
• K8DT-PH Phase-sequence Phase-loss Relay/Catalog
• Purchase the OMRON K8DT-PH Component Protective Components

OMRON K8DT-PH Dimensions

last update: April 01, 2016

Achieve Downsizing Control Panels and Reducing Wiring

New Value For Control Panels

Control Panels: The Heart of Manufacturing Sites.
Evolution in control panels results in large evolution in production facilities.
And if control panel design, control panel manufacturing processes, and human interaction with them are innovated, control panel manufacturing becomes simpler and takes a leap forward.
OMRON will continue to achieve a control panel evolution and process innovation through many undertakings starting with the shared Value Design for Panel *1 concept for the specifications of products used in control panels.

*1 Value Design for Panel

Our shared Value Design for Panel (herein after referred to as "Value Design") concept for the specifications of products used in control panels will create new value to our customer’s control panels.
Combining multiple products that share the Value Design concept will further increase the value provided to control panels.

Protect Your Important Equipment from the Chance of Troubles

Do You Face These Problems?

1. Alarms do not occur before equipment is damaged.
2. Protection is necessary because of poor power supply quality
     overseas.
3. Preventing excessive temperature increases in heaters is
     necessary.
4. Control panels for electrode-based water level control must
     be downsized.
5. Measuring and Monitoring Relays that conform to international
     safety standards are necessary.

What Are K8DT Measuring and Monitoring Relays? These Relays function as alarms for which you can set a threshold value

[Input signal*] A voltage, current, temperature (thermocouple or platinum resistance thermometer), or water level
                         (electrode) can be input.

[Alarm output] You can select a relay or transistor output.

*There are different models for different inputs.

Long-term Contact Reliability Contributes to Visualization of Fault Status

Industry First*: Models with Transistor Outputs

*According to OMRON investigation in November 2015.

Use transistor outputs to take advantage of the long-term contact reliability.

The operating frequency of Measuring and Monitoring Relays is low, which means the surfaces of relay contacts can deteriorate and reduces reliability. Particularly for microcomputer board and PLC inputs, a microcurrent of 5 mA or less for switching reliability is required, making transistor outputs superior.

Low Power Consumption Design Enables Side-by-side Mounting

The power consumption has been greatly reduced in comparison with commercially available measuring and monitoring relays.

A lower power consumption means that internal heat generation is suppressed, which enables side-by-side mounting.

Reliability Even in Poor Noise Environments

There is no heat generated by high-frequency noise, which enhances reliability.

Control Panel Downsizing and Reduced Wiring; Flexible Layout with a 17.5-mm Width

This Is the Shape That Resulted from Efforts to Downsize Panels and Reduce Wiring.

• The slim body is only 17.5 mm wide to enable control panel downsizing.
• To simplify wiring, Push-In Plus terminal blocks are positioned at the front.
• To simplify changing settings, the setting switches were placed on the front.

Push-In Plus Terminal Blocks for Easy Wiring

Just Insert Wires: No Tools Required Now you can use Push-In Plus terminal blocks to reduce the time and work involved in wiring.

Greatly Reduce Wiring Work with Push-In Plus Terminal Blocks

*Information for Push-In Plus and screw terminal blocks is based on OMRON's actual measurement value data.

Wiring Possible with Stranded Wires

You can insert wires with pin terminals or ferrules, or you can also insert solid wires or stranded wires.

Application Examples:

Motor Protection

K8DT-A[]/-V[]/-P[]

[Application]  Ideal for monitoring for error trends in motors and other equipment
                         (e.g., equipment with three-phase motors, expensive equipment, and equipment with compressors).
[Features]      High reliability for worry-free application.

last update: April 01, 2016

Purchase the OMRON Component Protective Components Please fill in the following

---

OMRON K8DT-PH lineup

K8DT-PH Phase-sequence Phase-loss Relay/Lineup

last update: September 01, 2016

Phase-sequence Phase-loss Relay

Function	Rated input voltage *	Relay output	Model
Phase sequence and phase loss monitoring	3-phase, 3-wire 200 to 480 VAC	Relay: SPDT contact output	K8DT-PH1CN
		Transistor	K8DT-PH1TN

* The power supply voltage is the same as the rated input voltage.

Options (Order Separately)

Front Cover

Appearance	Model
	Y92A-D1A

last update: September 01, 2016

OMRON K8DT-PH dimension

K8DT-PH Phase-sequence Phase-loss Relay/Dimensions

last update: April 01, 2016

Phase-sequence Phase-loss Relay

K8DT-PH1

Options (Order Separately)

Front Cover

Y92A-D1A

Optional Parts for DIN Track Mounting

DIN Tracks

PFP-100N
PFP-50N

last update: April 01, 2016

OMRON K8DT-PH specification

K8DT-PH Phase-sequence Phase-loss Relay/Specifications

last update: April 3, 2017

Ratings

Rated input voltage		3-phase, 200 to 480 VAC (3-wire)
Input load		Approx. 2.6 VA
Rated insulation voltage		528 VAC
Operating time	Phase sequence	0.1 s±0.05 s
	Phase loss	0.1 s max. (when the voltage changes rapidly from 100% to 0% of rated voltage)
Reset method		Automatic reset
Indicators		Power (PWR): Green, Output (OUT): Yellow
Output form		Relay Output: SPDT contact Transistor Output: 1
Output relay ratings		Rated load 5 A at 250 VAC (Resistive load) 5 A at 30 VDC (Resistive load) 1 A at 250 VAC (Inductive load) 0.2 A at 48 VDC (Inductive load) Minimum load: 5 VDC, 10 mA (reference values) Mechanical life: 10 million operations min. Electrical life: 5 A at 250 VAC or 30 VDC: 50,000 operations 3 A at 250 VAC or 30 VDC: 100,000 operations
Transistor output ratings		Rated voltage: 24 VDC (maximum voltage: 26.4 VDC) Maximum current: 50 mA DC
Ambient operating temperature		-20 to 60°C (with no condensation or icing)
Storage temperature		-25 to 65°C (with no condensation or icing)
Ambient operating humidity		25% to 85% RH (with no condensation)
Storage humidity		25% to 85% RH (with no condensation)
Altitude		2,000 m max.
Applicable wires		Stranded wires, solid wires, or ferrules
Applicable wire size		0.25 to 1.5 mm2 (AWG24 to AWG16)
Wire insertion force		8 N max. for AWG20 wire
Screwdriver insertion force		15 N max.
Wire stripping length		8 mm
Ferrule length		8 mm
Recommended flatblade screwdriver		XW4Z-00B (Omron) SZF 0.4 × 2.5 (Phoenix Contact) 210-719 (Wago) SDI 0.4 × 2.5 × 75 (Weidmuller)
Current capacity		10 A (per pole)
Number of insertions		50 times
Case color		N1.5
Case material		PC, UL 94 V-0
Weight		Approx. 100 g
Mounting		Mounts to DIN Track, or screw mounting
Dimensions		17.5 × 90 × 90 mm (W×D×H)

Specifications

Input frequency range		45 to 65 Hz
Overload capacity		Continuous 528 V
Phase loss detection level		80%±10% of rated input Calculation Formula = 1 - ((Highest phase-to-phase voltage - Lowest phase-to-phase voltage)/ Average three-phase phase-to-phase voltage)
Applicable standards	Conforming standards	EN 60947-5-1 Installation environment (pollution level 2, Overvoltage category III)
	EMC	EN 60947-5-1
	Safety standards	UL 60947-5-1 (Listing), Korean Radio Waves Act (Act 10564), CCC (GB14048.5), LR (Category ENV1.2)
Insulation resistance		20 MΩ min. Between external terminals and case Between input terminals and output terminals
Dielectric strength		2,000 VAC for one minute Between external terminals and case Between input terminals and output terminals
Impulse withstand voltage		6 kV (between live terminals and exposed, non-charged metal parts)
Noise immunity		1,500 V power supply terminal common/normal mode Square-wave noise of 1 μs/100 ns pulse width with 1-ns rise time
Vibration resistance		Frequency: 10 to 55 Hz, 0.35-mm single amplitude 10 sweeps of 5 min each in X,Y, and Z directions
Shock resistance		100 m/s2, 3 times each in 6 directions along 3 axes
Degree of protection		Terminals: IP20

last update: April 3, 2017

OMRON K8DT-PH catalog

K8DT-PH Phase-sequence Phase-loss Relay/Catalog

• Catalog
• CAD

English

Global Edition

For ordering in Singapore, please note some product models not sold in Singapore may be included in the following catalog(s) for our global customers.

*It is recommended to select “Save” from the right-click due to large size of catalog PDF data.

Catalog Name	Catalog Number [size]	Last Update
K8DT-PH Data Sheet	N206-E1-01 [2656KB]	Jul 10, 201720170710	K8DT-PH Data Sheet
K8DT Brochure	N210-E1-01 [5229KB]	Oct 11, 201620161011	K8DT Brochure
Innovation in Control Panel Building	Y218-E1-03 [13592KB]	Oct 02, 201720171002	Innovation in Control Panel Building
Measuring and Monitoring Relays Application Guide	N222-E1-01 [1649KB]	Jun 01, 201820180601	Measuring and Monitoring Relays Application Guide

• NO. K8DT-PH
• TYPE:Measuring / Motor Protective Relays Component Protective Components Measuring & Monitoring relays
• DATE:2021-06-08
• Associated products:
  K8DT-VW Single-phase Overvoltage/Undervoltage Relay/Features K8DT-PM Three-phase Voltage and Phase-sequence Phase-loss Relay/Features