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.
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 Generated
Product Features
Key Features
Comprehensive 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 Topology
Selection Guide
Model 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: RS485
Model 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.
| 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 |
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
| 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 |
| Communication Protocol | Modbus 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
| 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 |
Installation Instructions
Installation Guide
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.
FAQ
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