Omron K8AK-TH11S Temperature Monitoring Relay – 24VAC/DC, 0–999°C, Thermocouple & Pt100 Input, SPDT

The Omron K8AK-TH11S is a high-precision temperature monitoring relay designed to detect and control over- or under-temperature conditions in industrial and automation systems. Supporting multiple thermocouple and RTD input types (E, J, JPt100, K, Pt1000, T), it provides accurate temperature monitoring over a 0–999°C range.

Operating on a 24VAC/DC supply voltage, this 22.5 mm-wide DIN rail-mounted relay features a single SPDT output for alarm or control integration. Built with a durable screw terminal connection and compact design, the K8AK-TH11S is ideal for heating, cooling, and process safety applications requiring reliable thermal management.

Technical Specifications

Model: K8AK-TH11S Omron
Series: K8AK Temperature Monitoring
Function: Over/Under temperature monitoring
Input Type: Thermocouple (E, J, K, T) / RTD (Pt100, JPt100, Pt1000)
Temperature Range: 0–999°C
Form Factor: DIN Rail – 22.5 mm Width
Connection Method: Screw terminals
Ideal For: Industrial heating systems, process equipment, and temperature alarms

Electrical Specifications

• Supply Voltage (AC): 20.4–26.4 VAC
• Supply Voltage (DC): 20.4–26.4 VDC
• Input Types: Thermocouple (E, J, K, T) and RTD (Pt100, JPt100, Pt1000)
• Temperature Detection Range: 0–999°C
• Output Type: Relay (Electromechanical)
• Output Contacts: SPDT (1 changeover)
• Control Loops: 1

I/O & Control Interface

• Number of Channels: 1
• Output Relay: 1 x SPDT
• Control Function: Over-temperature / Under-temperature detection
• Alarm Adjustment: Front-panel potentiometer or dial
• Signal Indicators: LED display for status and alarm conditions

Mechanical Specifications

• Width: 22.5 mm
• Mounting: DIN rail 35 mm
• Terminal Type: Screw connection
• Case Material: Industrial-rated polymer
• Body Colour: Black
• Weight: Approx. 100 g

Environmental Specifications

• Operating Temperature: -10°C to +55°C
• Storage Temperature: -25°C to +70°C
• Humidity: 5–95% RH (non-condensing)
• Protection Rating: IP20 (panel-mounted)
• Application Category: Industrial temperature control and monitoring

Compliance & Certifications

• CE Marked: Yes
• UL / cUL Listed: Yes
• RoHS Compliant: Yes
• Standards: IEC/EN 61010-1, IEC/EN 61326-1

Key Features & Benefits

✅ 0–999°C Temperature Range. Ideal for a wide variety of industrial applications.

✅ Thermocouple & RTD Inputs. Compatible with E, J, K, T, Pt100, and Pt1000 sensors.

✅ 24VAC/DC Operation. Flexible power compatibility for control systems.

✅ SPDT Relay Output. Reliable switching for alarms and safety functions.

✅ Compact 22.5 mm Design. Saves valuable control panel space.

✅ Screw Terminals. Secure and vibration-resistant connections for industrial use.

📦 Order the Omron K8AK-TH11S 24VAC/DC from Drive Outlet Megastore

At Drive Outlet Megastore, we provide unbeatable Omron K8AK-TH11S prices, supplying high-quality temperature monitoring relays for industrial process control and automation. Compact, accurate, and built for dependable thermal protection.

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Measure with accuracy. Control with confidence. Omron reliability — only at Drive Outlet Megastore.