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Products > Monitoring Relays

Monitoring Relays

Omron make a range of DIN-rail mounted measurement and monitoring relays. Operating in one or three phase circuits, the relays can detect a number of fault conditions, including over or under voltage or current. The relays contain a number of high-level features, like dual output relays.

• Remote condition monitoring of criticial equipment: Y236-E1-01
• Measuring and Motor Protection Group Catalogue: X070-E1-01
K3FP Ultra-slim Signal Converter  
K6EL Ground Fault Relay  
• G3PW Single-phase Power Controllers Datasheet: J176-E1-01
• G3PW Single-phase Power Controllers User's Manual: Z280-E1-04
• Control Panel Basics: Y222-E1-01

Motor Monitoring Devices
Smart Power Monitoring
Measuring and Monitoring relays
Other Controllers
Previous Models

Motor Monitoring Devices

Motor Condition Monitoring Device
Motor Protective Relay
Model Types Vibration and temperature, Insulation resistance and Comprehensive current diagnostic Protection for Overcurrent, Open-phase and Reverse-phase
Features • EtherNet/IP port for network connection and PC monitoring
• Clamp style CT's for easy installation
• Large easy-to-read white LCD numbering
• Push-In terminals for easy wiring
• Conforms to UL, CE, RCM and EAC standards
• Overload timing can be instantaneous or inverse
• Settable operating time: 1 to 40S
• Prevents motor reversing without starting it
• Plug-in or flush mounting
• Operates at 100% or 115% of current SV
• Auto or manual reset
Input Current Range 5 to 600A 1 to 160A
Output 3 Transistors SPDT (3A)
Accessories K6CM-VBS1: Vibration and temperature sensor
K6CM-CICB___: Special CTs from 5A to 600A
Current Sensor (Single phase)
Current Sensor (Three phase)
Manuals Datasheet
Startup Guide
Application Guide
K6CM User's Manual
K6PM-TH User's Manual


Smart Power Monitoring

Din-rail (KM-N2) or On-panel (KM-N3) mounting
Multi-circuit Smart Power Monitor
Features • Able to measure up to four circuits in one unit
• Power Monitor applicable around the globe
• Master unit connects up to 4 slaves
• Uses readily-available general-purpose CTs
• Large easy-to-read white LCD lettering
• Push-In terminals for pulse outputs and RS485
• Conforms to UL and CE standards
• DIN-rail mounted, modular system
• Dual measurement, for lighting and power
• Master unit connects up to 4 slaves
• Each slave connects up to 8 circuits
• CT, Temperature/Pulse inputs supported
• CompoWay/F standard, DeviceNet available
Accessories 3 Current transformers (CTs):
KM20 -CTN100/-CN250/-CN500
6 Current transformers and cable:
KM20-CTF series (5 to 600A)
Manuals KM-N2-FLK User's Manual
KM-N3-FLK User's Manual
KE1 Smart Power Measuring Monitor
KE1 DeviceNet Communication Units
Power Sensor
Panel-mounted Power Monitor Meters
Features • DIN-rail mounted unit
• Self-powered, from CT input
• Connectable to single or three phase
• Can use special or third-party CTs
• Pulse output, with settable widths
• Stand-alone or CompoWay/F communications
• Panel mounted, with east-to-see display
• Available in 96x48 or 48x48 face-fronts
• Conversion to monetary cost
• Alarm outputs for various conditions
• Direct connection to 400V, without CT
• CompoWay/F and Modbus-RTU standard
Accessories Current transformer:
KM20-CT050-CE (up to 50A)
6 Current transformers and cable:
KM20-CTF series (5 to 600A)
Manuals   KM50 Communications Manua1
Portable Power / Environmental Monitoring
Sensor Network Controller
Features • Compact, slim, hand-held units
• Powered by batteries or external DC source
• Can be mounted by use of magnets
• LAN connection standard
• SD card for logging data locally
• CompoWay/F communications available
• DIN-rail mounted, central data collector
• Can monitor power usage throughout entire site
• LAN port, with web-server and email client
• Four serial ports, to connect to 4 networks
• SD Card memory port for data logging
• Local I/O for inputs and alarming outputs
Accessories ZN-KMX21-A Station unit and ZN-CTM11 series cables and current transformers (5 to 200A) Software: EasyEW Manager, Logger and Viewer and Dr ECO Energy Analyser
Manuals Smart Monitoring Relays EQ100-E User's Manual
Energy Savings Analysis Software
Features • Software to analyse energy usage
• Connects to directly to EW700 data collector
• Graphically displays to show trends
• Configurable graphs to simplify analysis
• Data can be logged for future referral
• Data Management into single database
Manuals Datasheet  


Measuring and Monitoring Relays

Features • Control panel downsizing and reduced wiring
• Flexible layout with a 17.5-mm width
• Greatly reduced wiring with Push-in Plus Terminals
• Resistant to high frequency noise
• Complies with global power and safety standards
• Models with transistor outputs are available
• Supports Global Power Supply Voltages
• K8AK (22.5mm) and K8DS (17.5mm) series
• All models are DIN-rail mounting
• Eleven models handle all applications
• Single phase models also work with DC input
• Resistant to high frequency noise
• Complies with global power and safety standards
Single-phase Relay Models (17.5mm width, slim-line)
K8DT-AS: Current Relay
K8DT-AW: Overcurrent/Undercurrent Relay
K8DT-VS: Voltage Relay
K8DT-VW: Overvoltage/Undervoltage Relay
(22.5mm width, slim-line)
K8AK-AS: Current Relay
K8AK-AW: Overcurrent/Undercurrent Relay
K8AK-VS: Voltage Relay
K8AK-VW: Overvoltage/Undervoltage Relay
Three-phase Relay Models (22.5mm width, slim-line) - K8AK-PW: Voltage Relay
K8AK-PH: Phase-sequence, Phase-loss Relay
K8AK-PM: Voltage, Phase-sequence Phase-loss Relay
K8AK-PA: Asymmetry Phase-sequence Phase-loss Relay
Three-phase Relay Models (17.5mm width, super-slim) K8DT-PH: Fixed Voltage
K8DT-PM: Overvoltage / Undervoltage relay
K8DT-PZ: Asymmetry Three Phase Overvoltage / Undervoltage relay
K8DS-PH: Phase-sequence, Phase-loss Relay
K8DS-PU: Undervoltage, Phase-sequence, Phase-loss
K8DS-PM: Voltage, Phase-sequence, Phase-loss Relay
K8DS-PA: Asymmetry and Phase-sequence Phase-loss
K8DS-PZ: Voltage, Asymmetry, Phase-sequence/-loss
Other Relay Models (17.5mm width, slim-line)
K8DT-TH: Temperature Monitoring Relay
K8DT-LS: Conductive Level Control Relay
(22.5mm width, slim-line)
K8AK-TH: Temperature Monitoring Relay
K8AK-LS: Conductive Level Control Relay
K8AK-TS/-PT: Thermistor Motor Protection Relay
Manuals Application Guide K8AK / K8DS Datasheet


Other Controllers

Features • Operates with SSR, cyclic and phase control methods
• 3 models cover 0.2 to 200A elements
• Source voltage fluctuation compensator
• High precision unit
• Relay or transistor outputs
• CompoWay/F communications
• Very compact unit
• Low-noise power control, using zero-cross SSRs
• Support 4 or 8 control points
• 100-240V or 400-480V load power supply
• Controls up to 8 SSRs
• CompoWay/F communications standard
Accessories 3 Current transformers:0.2 to 2.2A;
2.0 to 22A or 20 to 200A
2 Current transformers:
5.8 or 12.0mm diameter
Manuals H8AC-H User's Manual: N159-E1-02 G3ZA Operation Manual: Z200-E1-03
Power Controllers Technical Guide
Details on previous models Top