Digital Energy

ESA Embedded Multi-Function Energy Meter

ESA Embedded Series

Class 0.2 accuracy, 2nd-31st harmonic analysis, embedded panel mounting, for cabinet fine-grained metering and efficiency analysis.

Class 0.2 accuracy2nd-31st harmonicsEmbeddedFine-grained metering
ESA Embedded Multi-Function Energy Meter

Product Overview

Product Overview The ESA All-Element Smart Meter uses a dedicated metering chip and high-precision sensors to achieve dynamic sensing of over 40 variables. Specially designed for electrical parameter monitoring of low-voltage three-phase circuits, it can monitor voltage, current, power, power factor, energy consumption and other parameters. It supports alarm outputs such as overvoltage, overcurrent, phase loss and DI linkage. It exclusively supports software self-calibration, ensuring that accuracy does not degrade throughout the entire service life (typically over 10 years), avoiding “data depreciation” caused by accuracy loss and replacement costs. 0.2S-class core measurement accuracy; 40+ dynamically sensed variables; 200+ open data registers; 10+ years of non-degrading accuracy

Data GeneratedClass 0.2 accuracy2nd-31st harmonicsEmbeddedFine-grained meteringProduct FeaturesKey FeaturesComprehensive Monitoring

Monitors full parameters including three-phase voltage/current (with external current transformers), frequency, three-phase power, total power (active, reactive, apparent) and three-phase power factor

Additional Key Parameters

The high-speed chip captures key parameters accurately, quickly and stably, enabling early prediction while adding more parameters, supporting 0-2000A metering

All-Weather Sensors

Non-contact split-core sensors capable of stable operation in strong electromagnetic interference environments

Complete Alarm Outputs

Alarm output status normal, OB number constant; alarm settings can be written to control outputs: closed O/disconnected, configurable control

Compact, Flexible & Convenient

Supports linkage control; standard OLED screen and physical keys for convenient on-site query and settings; RS485 communication with Modbus protocol; compact 36mm width

High Accuracy

Default class 0.5, as low as class 0.2s with split-core sensors; current monitoring range 0-6000A

Product Advantages

Product Advantages, class 0.2S

Permanently Online Accuracy

Core measurement accuracy reaches class 0.2S, far exceeding common class 1.0 meters. Exclusively supports software self-calibration - after accuracy drift, calibration can be completed remotely or locally, reducing maintenance costs by 90%. 60%

One Meter, All Functions

Over 70 sets of electrical data, dual power supply DC5V/AC220V, integrated 2 DI/1 DO/RS485. The highly integrated design replaces multiple devices in traditional solutions, improving installation efficiency by 50%. 80%

Smart Sentinel

From monitoring and alarming to automatic response. Supports automatic linkage of 8 alarm sources, going beyond simple threshold alarms - it can implement complex logic judgments such as “overcurrent AND door open” and automatically start fans and alarms. 200+

Complete Data Dictionary

A complete address table of over 200 readable/writable registers, with all parameters, data and settings fully transparent. Standard Modbus-RTU protocol, directly readable by SCADA/BA/EMS/cloud platforms. 0.1 second

Extreme Interaction Experience

Bright OLED screen with smart menus; red/green/pulse tri-color independent indicators - device running status and alarm categories can be accurately identified from 10 meters away within 0.1 second. 50,000h

Wide-Temperature Reliable Operation

Wide-temperature operation from -20°C to 60°C, UL94V0 flame-retardant materials, 50,000-hour mean time between failures. Plug-in terminals enable tool-free wiring, improving efficiency by 80%.

System TopologyPerception LayerElectrical Parameters · Leakage Detection · Temperature · Arc · Lightning Current · SPD StatusEdge LayerEdge Gateway · Smart Circuit Breaker · Protocol Acquisition · Rule EnginePlatform LayerFEXLINK Cloud · W-Link · Device Access · Data StorageApplication LayerIndustrial AI Analysis · Virtual Power Plant · Energy Monitoring · Carbon Assets · Carbon-Neutral ParkSelection GuideModel Selection Guide ESA - 1 2 3 4 5 - R: Position 1 · Power: 1=DC5V 2=AC220V; Position 2 · Display: 1=LED digital display 2=OLED screen; Position 3 · Wiring: 1=three-phase four-wire; Position 4 · Current: 1=0~5A 2=0~100A 3=0~400A 4=0~600A; Position 5 · Input/Output: 1=1 relay output + 2 digital inputs; R · Communication: RS485Model Selection Table

Model / Power supply / Display / Current / Voltage / Other electrical parameters / Digital inputs / Relay output / RS485 MODBUS: ESA-12111-R DC5V OLED 0~5A 220/380V full parameters 2 channels 1 channel supported; ESA-12121-R DC5V OLED 0~100A 220/380V full parameters 2 channels 1 channel supported; ESA-12131-R DC5V OLED 0~400A 220/380V full parameters 2 channels 1 channel supported; ESA-12141-R DC5V OLED 0~600A 220/380V full parameters 2 channels 1 channel supported; ESA-22111-R AC220V OLED 0~5A 220/380V full parameters 2 channels 1 channel supported; ESA-22121-R AC220V OLED 0~100A 220/380V full parameters 2 channels 1 channel supported; ESA-22131-R AC220V OLED 0~400A 220/380V full parameters 2 channels 1 channel supported; ESA-22141-R AC220V OLED 0~600A 220/380V full parameters 2 channels 1 channel supported. Other electrical parameters include frequency, power, power factor, etc.

ModelPower Supply / Display / Current / Voltage / Other Electrical Parameters / Digital Inputs / Relay Output / RS485 MODBUS
ESA-12111-RDC5V / OLED / 0~5A / 220/380V / Full parameters / 2 channels / 1 channel / Supported
ESA-12121-RDC5V / OLED / 0~100A / 220/380V / Full parameters / 2 channels / 1 channel / Supported
ESA-12131-RDC5V / OLED / 0~400A / 220/380V / Full parameters / 2 channels / 1 channel / Supported
ESA-12141-RDC5V / OLED / 0~600A / 220/380V / Full parameters / 2 channels / 1 channel / Supported
ESA-22111-RAC220V / OLED / 0~5A / 220/380V / Full parameters / 2 channels / 1 channel / Supported
ESA-22121-RAC220V / OLED / 0~100A / 220/380V / Full parameters / 2 channels / 1 channel / Supported
ESA-22131-RAC220V / OLED / 0~400A / 220/380V / Full parameters / 2 channels / 1 channel / Supported
ESA-22141-RAC220V / OLED / 0~600A / 220/380V / Full parameters / 2 channels / 1 channel / Supported

Technical Parameters

Technical Specifications

Basic Parameters

Parameter / Specification: Operating voltage DC 4.75~5.25V(5V) / AC 180~250V(220V); operating temperature -20℃ ~ 60℃; product weight 150g; housing material thermoplastic material UL94V0; mounting standard 35mm DIN rail; communication RS485; power consumption ≤2W; operating humidity <95%; dimensions 36×110×69mm (L×W×H); protection rating IP20; display OLED; protocol Modbus protocol

ParameterSpecification
Operating VoltageDC 4.75~5.25V(5V) / AC 180~250V(220V)
Operating Temperature-20℃ ~ 60℃
Product Weight150g
Housing MaterialThermoplastic material UL94V0
MountingStandard 35mm DIN rail
CommunicationRS485
Power Consumption≤2W
Operating Humidity<95%
Dimensions36×110×69mm (L×W×H)
Protection RatingIP20
DisplayOLED
Communication ProtocolModbus protocol

Monitoring Functions

Parameter / Specification: Voltage (AC) rated 220V/380V, overload 1.2x (continuous)/2x (1 second), accuracy class 0.5/0.2s; Current (AC) rated 5A/100A/400A/600A, overload 1.2x (continuous)/2x (1 second), accuracy class 0.5/0.2s; Frequency 45~65Hz, accuracy 0.01Hz; Active energy accuracy class 1; Reactive energy accuracy class 2; Digital inputs dry contact input, built-in power; Digital output relay output, contact rating AC250V/3A DC30V/3A, normally open contact

ParameterSpecification
Voltage (AC)Rated 220V/380V, overload 1.2x (continuous)/2x (1 second), accuracy class 0.5/0.2s
Current (AC)Rated 5A/100A/400A/600A, overload 1.2x (continuous)/2x (1 second), accuracy class 0.5/0.2s
Frequency45~65Hz, accuracy 0.01Hz
Active EnergyAccuracy class 1
Reactive EnergyAccuracy class 2
Digital InputsDry contact input, built-in power
Digital OutputRelay output, contact rating AC250V/3A DC30V/3A, normally open contact

Installation Instructions

Installation Guide. ESA-Embedded Products | YESLON var _hmt = _hmt || []; (function () { var hm = document.

Mounting Dimensions

Dimensions Standard 35mm DIN rail mounting, dimensions: 36×110×69mm (L×W×H)

Sensor Description

Sensor Description 5A sensor: current ratio 5A/0.33V, aperture 16mm; 100A sensor: current ratio 100A/0.33V, aperture 24mm; 400A sensor: current ratio 400A/0.33V, aperture 36mm; 600A sensor: current ratio 600A/0.33V, aperture 36mm

Interface Description

Interface Description Power terminals: L1 - live wire, AC220V power supply; N - neutral wire, AC220V power supply; 5V - DC5V power supply; GND - 0V, DC5V power supply. Note: only one of AC220V and DC5V can be used. RS485 communication: A - RS485 A signal; B - RS485 B signal. DI inputs: DI1 - connect the other end to GND, direction-free; DI2 - connect the other end to GND, direction-free. DO outputs: DO1 - relay output, direction-free; DO1' - relay output, direction-free. Current: IA+/IA- - A-phase current; IB+/IB- - B-phase current; IC+/IC- - C-phase current. Voltage: L1 - A-phase voltage; L2 - B-phase voltage; L3 - C-phase voltage; N - neutral wire

Key Points

Definition: The ESA Smart Meter is FEXLINK's smart meter version that integrates power/energy metering functions on the basis of the ESA electrical safety monitoring terminal. Core capabilities: On top of residual current, temperature and voltage monitoring, it adds metering functions such as active energy, reactive energy and demand, supporting energy consumption analysis. Applicable scenarios: Suitable for distribution cabinets, commercial complexes and industrial parks where electrical safety and energy management are equally important. Related products: ESA electrical safety monitoring terminal, SFA multi-element measurement & control unit, ZSA embedded multi-function meter.

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Learn MoreESA Embedded Multi-Function Energy Meter Application Scenarios

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Frequently Asked Questions

Which models and supply options does ESA Embedded Multi-Function Energy Meter offer?

ESA Embedded Multi-Function Energy Meter lists ESA-12111-R, ESA-12121-R, ESA-12131-R etc. in the specification table, with supply options including —.

How many digital inputs and monitoring channels does ESA Embedded Multi-Function Energy Meter provide?

Taking ESA-12111-R as the example: — digital inputs, grounding status —, lightning count —, temperature —, leakage — and voltage channels —.

Which communication and output options does ESA Embedded Multi-Function Energy Meter support?

ESA-12111-R supports RS485; choose the interface by the model suffix when connecting to a host system.

How should ESA Embedded Multi-Function Energy Meter be selected?

Fix the channel count by the number of monitored circuits first, then trim by grounding, lightning-count or voltage needs, and confirm the supply and communication suffix last.

What is the boundary of the ESA Embedded Multi-Function Energy Meter specification?

This page lists only the parameters in the specification table; anything outside it, such as ingress protection or mounting, follows the product documentation.