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Single-phase Voltage Relay
K8DT-VS
Detect abnormal voltages applies to equipment to
protect against equipment failure.
Use in either overvoltage or undervoltage mode.
• Monitor AC or DC currents with one Relay.
• Settings for the operating value, hysteresis, and operating time.
• Width of 17.5 mm to reduce space required in panels.
• Push-In Plus Terminal that reduce wiring work.
The use of cage clamps enables wiring with bare stranded wires.
Double-insertion holes for crossover wiring (all terminals).
• UL listed for easy shipping to North America.
• Models added with transistor outputs for superior contact reliability.
Refer to Safety Precautions on page 9.
Refer to page 8 for commonly asked questions.
Ordering Information
Single-phase Voltage Relay
Power supply
Setting range
1 to 10 V AC/DC
3 to 30 V AC/DC
15 to 150 V AC/DC
100 to 240 VAC
20 to 200 V AC/DC
30 to 300 V AC/DC
60 to 600 V AC/DC
100 to 240 VAC
Optional Cover
Front Cover
Appearance
Model
Y92A-D1A
Output
voltage
Relay: SPDT contact output
24 VAC/DC
Transistor
Relay: SPDT contact output
Transistor
Relay: SPDT contact output
24 VAC/DC
Transistor
Relay: SPDT contact output
Transistor
For the most recent information on models
that have been certified for safety
standards, refer to your OMRON website.
Model
K8DT-VS2CD
K8DT-VS2TD
K8DT-VS2CA
K8DT-VS2TA
K8DT-VS3CD
K8DT-VS3TD
K8DT-VS3CA
K8DT-VS3TA
1
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Table of Contents
Related Manuals for Omron K8DT-VS Series
Summary of Contents for Omron K8DT-VS Series
- Page 1 • Models added with transistor outputs for superior contact reliability. For the most recent information on models that have been certified for safety Refer to Safety Precautions on page 9. standards, refer to your OMRON website. Refer to page 8 for commonly asked questions. Ordering Information Single-phase Voltage Relay...
- Page 2 K8DT-VS Ratings and Specifications Input Range Connection Range * Model Setting range Input impedance Overload capacity terminal 0 to 10 V AC/DC V1-COM 1 to 10 V AC/DC Approx. 120 kΩ K8DT-VS2@@ 0 to 30 V AC/DC V2-COM 3 to 30 V AC/DC Approx.
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Page 3: Specifications
8 N max. for AWG20 wire Screwdriver insertion force 15 N max. Wire stripping length 8 mm Ferrule length 8 mm XW4Z-00B (Omron) Recommended flat- SZF 0.4 × 2.5 (Phoenix Contact) blade screwdriver 210-719 (Wago) SDI 0.4 × 2.5 × 75 (Weidmuller) Current capacity... -
Page 4: Wiring Example
K8DT-VS Connections Terminal Diagram (3) Power Supply Voltage K8DT-VS2 C A (1) (2)(3) A: 100 to 240 VAC D: 24 VAC/DC (No polarity) (1) Voltage Input 150V max. 600V max. 30V max. 300V max. 10V max. 200V max. (2) Output C: Relay Output T: Transistor Output DIP SW... -
Page 5: Timing Charts
K8DT-VS Timing Charts Overvoltage Operation Diagram Undervoltage Operation Diagram (Output Drive Method: Normally Closed) (Output Drive Method: Normally Open) DIP switch setting: SW3 ON, SW4 OFF. DIP switch setting: SW3 OFF, SW4 ON. Power supply Power supply voltage voltage Hysteresis Input (5% to 50% of operating value) Hysteresis... -
Page 6: Dip Switch Settings
K8DT-VS Operation Methods Setting Ranges and Wiring Connections Model Setting range Wiring connection 1 to 10 V AC/DC V1-COM K8DT-VS2 3 to 30 V AC/DC V2-COM 15 to 150 V AC/DC V3-COM 20 to 200 V AC/DC V1-COM K8DT-VS3 30 to 300 V AC/DC V2-COM 60 to 600 V AC/DC V3-COM... - Page 7 K8DT-VS Setting Method Setting Voltage The voltage knob (SV) is used to set the voltage. The voltage can be set to 10% to 100% of the maximum setting range. Turn the knob while there is an input to the input terminals until the alarm indicator flashes (when the set value and the input have reached the same level.) Use this as a guide to set the voltage.
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Page 8: Questions And Answers
K8DT-VS Questions and Answers Checking Operation How to Measure the Operating Time Overvoltages Overvoltage Gradually increase the input from 80% of the set value. Change the input suddenly from 0% to 120% of the set value The input will equal the operating value when the input and measure the time until the Unit operates. -
Page 9: Safety Precautions
K8DT-VS Safety Precautions Be sure to read the precautions for all models in the website at the following URL: http://www.ia.omron.com/. Warning Indications !WARNING Indicates a potentially hazardous situation which, if not avoided, will result Electrical shock may occasionally cause serious injury. Confirm... - Page 10 K8DT-VS 30.To prevent wiring materials from smoking or igniting, confirm wire Precautions for Safe Use ratings and use the wiring materials given in the following table. 1. Do not use or store the product in the following locations. Stripping length Recommended wire (Ferrules not used) •...
- Page 11 K8DT-VS Screw Mounting Connecting Stranded Wires 1. Pull out the two hooks on the back of the Relay to the outside until Use the following procedure to connect the wires to the terminal block. you hear them click in place. 1.
- Page 12 Phoenix Contact × 2.5 * SZF 0-0.4 × × 75 302 Wiha × AEF.2.5 Facom 210-719 Wago × × SDI 0.4 Weidmuller * OMRON's exclusive purchase model XW4Z-00B is available to × order as SZF 0-0.4 2.5 (manufactured by Phoenix Contact).
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Page 13: Terms And Conditions Agreement
Data presented in Omron Company websites, catalogs and other materials is provided as a guide for the user in determining suitability and does not constitute a warranty. It may represent the result of Omron’s test conditions, and the user must correlate it to actual application requirements. - Page 14 The Netherlands Hoffman Estates, IL 60169 U.S.A. Tel: (31)2356-81-300/Fax: (31)2356-81-388 Tel: (1) 847-843-7900/Fax: (1) 847-843-7787 © OMRON Corporation 2016 All Rights Reserved. OMRON (CHINA) CO., LTD. OMRON ASIA PACIFIC PTE. LTD. In the interest of product improvement, Room 2211, Bank of China Tower, No.