Datasheet

ManualsBrandsOmron Industrial Automation ManualsAutomationTemperature Monitoring Relay, Value Design

New Product

Temperature Monitoring Relay

K8DT-TH

Ideal to prevent heater overheating.

Self-latching output to contribute to safe

equipment operation.

• Set the temperature with ultra-simple rotary switches.

• Digitally set the temperature to between 0 and 999°C in 1°C increments with one

Relay (K8DT-TH1@@).

(K8DT-TH2@@: Set to between 0 and 1,800°C in 10°C increments.)

• Connect a thermocouple or platinum resistance thermometer.

• 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.

Ordering Information

Temperature Input Models

* Refer to Setting Ranges on page 3 for the setting ranges.

Options (Order Separately)

Front Cover

For the most recent information on models

that have been certified for safety

standards, refer to your OMRON website.

Refer to Safety Precautions on page 9.

Power supply

voltage

Input types Setting units (setting range) Output relays Type Model

24 V AC/DC

Thermocouple or

platinum resistance

thermometer

Setting unit: 1°C or 1°F

(0 to 999°C/°F)

Relay: SPDT contact output K8DT-TH1CD

Transistor K8DT-TH1TD

100-240 V AC

Relay: SPDT contact output K8DT-TH1CA

Transistor K8DT-TH1TA

24 V AC/DC

Thermocouple Setting unit: 10°C/°F *

Relay: SPDT contact output K8DT-TH2CD

Transistor K8DT-TH2TD

100-240 V AC

Relay: SPDT contact output K8DT-TH2CA

Transistor K8DT-TH2TA

Appearance Model

Y92A-D1A

Summary of content (14 pages)

PAGE 1
New Product Temperature Monitoring Relay K8DT-TH Ideal to prevent heater overheating. Self-latching output to contribute to safe equipment operation. • Set the temperature with ultra-simple rotary switches. • Digitally set the temperature to between 0 and 999°C in 1°C increments with one Relay (K8DT-TH1@@). (K8DT-TH2@@: Set to between 0 and 1,800°C in 10°C increments.) • Connect a thermocouple or platinum resistance thermometer. • Width of 17.5 mm to reduce space required in panels.
PAGE 2
K8DT-TH Ratings and Specifications Ratings Specifications Power supply voltage K8DT-TH@@D: 24 VAC 50/60 Hz or 24 VDC K8DT-TH@@A: 100 to 240 VAC 50/60 Hz Allowable voltage range 85% to 110% of power supply voltage Power consumption 24 VAC or 24 VDC: 2.1 VA max. or 1.2 W max. 100 to 240 VAC: 3.1 VA max.
PAGE 3
K8DT-TH Setting Ranges K8DT-TH1 Centigrade Fahrenheit Input Setting temperature range 1000 800 600 400 200 0 K J T E Pt100 Pt1000 999 850 400 600 850 850 ? ? 0 0 ? 0 0 0 0 Minimum setting increment Input 1000 800 600 400 200 0 Setting temperature range K J T E Pt100 Pt1000 999 ? 999 700 999 ? 999 ? 999 ? 0 0 0 0 0 ? 0 Minimum setting increment 1°C 1°F K8DT-TH2 Centigrade Input Setting temperature range 1,800 1,700 1,600 1,500 1,400 1,300 1,200 1,100 1,000
PAGE 4
K8DT-TH Connections Terminal Diagram (3) Power supply voltage K8DT-TH1 C A A: 100 to 240 VAC (1) (2)(3) (1) Temperature sensor input TH1 TH2 B B + B+ B− A B+ A1 A2 B+ B− − A1 A2 D: 24 VAC/VDC A1 A2 (No polarity) A B− A (2) Output DIP SW C: Relay Output 14 11 T: Transistor Output 12 12 14 11 14 11 Inside Inside Note: 1. Do not connect anything to terminals that are shaded in gray. 2. There is no polarity for the DC power supply input.
PAGE 5
K8DT-TH Nomenclature Front K8DT-TH1 K8DT-TH2 Terminal block (See note.) Terminal block (See note.
PAGE 6
K8DT-TH Operation Method Connections Outputs For a relay output, the SPDT contacts are output on terminals 11, 12, and 14. For a transistor output, the output is on terminals 11 and 14. The internal circuit of the transistor output is NPN, but application is possible for either a sinking or sourcing output.
PAGE 7
K8DT-TH DIP Switch Functions K8DT-TH1 R_SW3 100°C/°F units (0 to 9) R_SW2 10°C/°F units (0 to 9) R_SW1 1°C/°F units (0 to 9) Note: The default setting is 0°C.
PAGE 8
K8DT-TH Dimensions (Unit: mm) Temperature Monitoring Relay K8DT-TH 100 90 86 17.5 5 90 Options (Order Separately) Front Cover Y92A-D1A 1.8 52.7 3.5 17.5 5.85 Optional Parts for DIN Track Mounting DIN Tracks PFP-100N PFP-50N 7.3±0.15 4.5 35±0.3 15 25 10 25 25 1000(500)* 10 25 15(5)* 27±0.15 1 * Dimensions in parentheses are for the PFP-50N.
PAGE 9
K8DT-TH 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 CAUTION Indicates a potentially hazardous situation which, if not avoided, may result in minor or moderate injury or in property damage. Precautions for Safe Use Supplementary comments on what to do or avoid doing, to use the product safely.
PAGE 10
K8DT-TH Precautions for Safe Use 1. Do not use or store the product in the following locations. • Locations subject to water or oil • Locations subject to direct radiant heating equipment • Outdoor locations or under direct sunlight • Locations subject to dust or corrosive gases (sulfurizing gases, ammonia gases, etc.
PAGE 11
K8DT-TH Screw Mounting Connecting Stranded Wires 1. Pull out the two hooks on the back of the Relay to the outside until you hear them click in place. 2. Insert M3 screws into the hook holes and secure the Relay. Use the following procedure to connect the wires to the terminal block. 1. Hold a flat-blade screwdriver at an angle and insert it into the release hole. The angle should be between 10° and 15°.
PAGE 12
K8DT-TH Recommended Ferrules and Tools EN/IEC Standard Compliance Recommended ferrules Applicable wire (mm2) Stripping Ferrule Recommended ferrules length Conductor (mm) Length (Ferrules Phoenix Contact Weidmuller (AWG) Wago product (mm) used) product product 0.25 24 0.34 22 0.5 20 0.75 18 1/1.25 1.25/1.5 18/17 17/16 8 10 AI 0.25-8 H0.25/12 FE-0.25-8N-YE 10 12 AI 0.25-10 --- --- 8 10 AI 0.34-8 H0.34/12 FE-0.34-8N-TQ 10 12 AI 0.34-10 --- --- 8 10 AI 0.5-8 H0.5/14 FE-0.
PAGE 13
Terms and Conditions Agreement Read and understand this catalog. Please read and understand this catalog before purchasing the products. Please consult your OMRON representative if you have any questions or comments. Warranties. (a) Exclusive Warranty. Omron’s exclusive warranty is that the Products will be free from defects in materials and workmanship for a period of twelve months from the date of sale by Omron (or such other period expressed in writing by Omron).
PAGE 14
OMRON Corporation Industrial Automation Company Authorized Distributor: Kyoto, JAPAN Contact: www.ia.omron.com Regional Headquarters OMRON EUROPE B.V. Wegalaan 67-69, 2132 JD Hoofddorp The Netherlands Tel: (31)2356-81-300/Fax: (31)2356-81-388 OMRON ELECTRONICS LLC 2895 Greenspoint Parkway, Suite 200 Hoffman Estates, IL 60169 U.S.A. Tel: (1) 847-843-7900/Fax: (1) 847-843-7787 OMRON ASIA PACIFIC PTE. LTD. No.