Omron Phase Monitoring Relay, 3 Phase, SPST, 100 → 240V ac, DIN Rail

RS Stock No.:: 111-3136
Mfr. Part No.:: K8DT-PH1TN
Manufacturer:: Omron

Omron Phase Monitoring Relay, 3 Phase, SPST, 100 → 240V ac, DIN Rail

Subtotal (1 unit)*

SGD137.23

(exc. GST)

SGD149.58

(inc. GST)

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3 unit(s) shipping from 09 March 2026

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Units	Per unit
1 +	SGD137.23

*price indicative

RS Stock No.:: 111-3136
Mfr. Part No.:: K8DT-PH1TN
Manufacturer:: Omron

Specifications

Technical data sheets

Legislation and Compliance

Product Details

Find similar products by selecting one or more attributes.

Select all	Attribute	Value
	Brand	Omron
	Monitoring Application	Phase
	Electrical Phase	3
	Voltage Sensing Range	100 → 240V ac
	Contact Configuration	SPST
	Mounting Type	DIN Rail
	Minimum Current Sensed	10A
	Maximum Current Sensed	50mA
	Phase Sensitivity	Phase Loss, Phase Sequence
	Frequency Sensing Range	45 → 65Hz
	Temperature Sensitivity	Overtemperature
	Temperature Sensing Range	0 → +999°C
	Series	K8DT-PH
	Minimum Voltage Sensed	100V ac
	Length	90mm
	Height	90mm
	Minimum Frequency Sensed	10Hz
	Minimum Temperature Sensed	0°C
	Maximum Operating Temperature	+60°C
	Operating Temperature Range	+60°C
	Maximum Voltage Sensed	240V ac
	Maximum Temperature Sensed	+999°C
	Width	17.5mm
	Minimum Operating Temperature	-20°C
	Dimensions	90 x 17.5 x 90mm
	Standards Met	CE, CULus
	Number of Poles	1
	Terminal Type	Push In
	Maximum Frequency Sensed	55Hz

	Select all
	Brand Omron
	Monitoring Application Phase
	Electrical Phase 3
	Voltage Sensing Range 100 → 240V ac
	Contact Configuration SPST
	Mounting Type DIN Rail
	Minimum Current Sensed 10A
	Maximum Current Sensed 50mA
	Phase Sensitivity Phase Loss, Phase Sequence
	Frequency Sensing Range 45 → 65Hz
	Temperature Sensitivity Overtemperature
	Temperature Sensing Range 0 → +999°C
	Series K8DT-PH
	Minimum Voltage Sensed 100V ac
	Length 90mm
	Height 90mm
	Minimum Frequency Sensed 10Hz
	Minimum Temperature Sensed 0°C
	Maximum Operating Temperature +60°C
	Operating Temperature Range +60°C
	Maximum Voltage Sensed 240V ac
	Maximum Temperature Sensed +999°C
	Width 17.5mm
	Minimum Operating Temperature -20°C
	Dimensions 90 x 17.5 x 90mm
	Standards Met CE, CULus
	Number of Poles 1
	Terminal Type Push In
	Maximum Frequency Sensed 55Hz

COO (Country of Origin):: CN

Omron K8DT-PH Series Monitoring Relay, 3-Phase, SPST Contact Configuration - K8DT-PH1TN

This monitoring relay is designed for efficient phase monitoring applications, especially in 3-phase systems. Boasting dimensions of 90 x 17.5 x 90 mm, it offers compact functionality while ensuring accurate electrical phase monitoring. The device supports a comprehensive voltage sensing range of 100 to 240V AC, making it a versatile addition to various electrical management systems.

Features & Benefits

• Monitors phase loss and sequence for enhanced system reliability
• Detects temperature variations with an overtemperature sensor
• DIN rail mount design for easy installation in control panels
• Voltage sensing range accommodates various electrical applications
• Maximum temperature sensing capability of +999°C for precise monitoring
• Complies with CE and cULus standards for safety assurance

Applications

• Utilised in industrial automation for electrical phase monitoring
• Ideal for requiring robust voltage and temperature monitoring
• Employed in control systems for electrical equipment protection
• Suitable for integration in machinery requiring 3-phase current monitoring

What is the significance of the phase monitoring capabilities?

Phase monitoring is critical for ensuring that all three phases in a system are balanced. Imbalances can lead to equipment damage or inefficient operation, making this relay essential for maintaining optimal performance.

How does the overtemperature sensor enhance safety?

The overtemperature sensor proactively detects excessive temperature levels, allowing for timely intervention before potential equipment failure or hazards occur, thereby safeguarding both machinery and personnel.

What type of installation is required for this relay?

This relay features a DIN rail mount design, simplifying installation within electrical panels. It securely attaches to standard DIN rails, streamlining the integration process in various setups.

Standards

EN 60947-5-1, UL 60947-5-1, IP 20 Terminals

Omron K8DT Series Control Relays

Omron K8DT measuring and monitoring relays are part of the Value Design for Panel concept that takes control panel design and manufacturing to a new level. The K8DT series protect important equipment from damage using various measuring and monitoring relays that conform to international safety standards. Low power consumption and low heat generation design offer a long service life.

Space Saving

The K8DT series can help downsize control panels by reducing the width between wiring ducts and void panel space. The slim body allows space to mount more devices in the same size of control panel to increase control panel functionality.

Push-In Plus Terminals

Push-In Plus terminal blocks on all K8DT relays reduce the time and work involved in wiring. The Push-In Plus terminals allow solid and stranded wires with pin terminals or ferrules to be inserted without the need for tools.