The Omron K8AK series monitoring relays are expertly designed for accurate and reliable monitoring for industrial facilities and equipment.The K8AK-TH relays are compact and slim, suitable for temperature alarms and monitoring. The relays' intelligent design ensures abnormal temperatures can be monitored and prevented. The relay also comes with alarm status identification LED indicator and self-holding output.

• Prevents and monitors large and abnormal temperature rises.
• Slim design only 22.5 mm wide.
• Rotary switches makes temperature switching easy.
• Universal input for thermocouple
• Can be normally closed or normally open. NC/NO.
• LED indicator alarm status / Output is retained when the alarm is off.
• Self-holding output.

• Monitoring Relay
• Thermocouple
• Temperature input
• 1 Relay
• Setting Unit 10°C/°F
• Power supply 24 V ac/dc

• Power 2 W max (24 V dc), 4 VA max (24 V ac)
• Sensor input Thermocouple – K, J, T, E, B, R, S, PLII
• 1 x SPDT relay (5 A at 250 V ac resistive load)
• Rotary switch setting (3 switches)
• Green LED Power (PWR)
• Red LED Relay output (ALM)
• DIN Rail Mounted
• Weight 160 g
• Case material PC and ABS, UL 94 V-0
• Colour N1.5
• Protection IP20

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.

• Motor protection relays
• Temperature monitoring relays
• Water level control relays
• Voltage
• Current

UL 61010-1, EN 61326-1, IP 20