ESA SMART METER
The ESA Multi-Parameter Smart Meter
Full-Parameter Electrical Smart Module
Integrates power metering, power quality analysis, and smart control. Supports multi-protocol access, providing full-parameter sensing for refined energy data management and smart O&M. Exclusive software self-calibration ensures accuracy remains stable for 10+ years.
Product Overview
Product OverviewThe ESA Multi-Parameter Smart Meter uses a dedicated metering chip and high-precision sensors to achieve dynamic sensing of up to 40+ variables. Dedicated to Low-Voltage three-phase circuit electrical parameter monitoring, can monitor Voltage, Current, power, power factor, energy consumption and other parameters. Supports over-voltage, over-current, phase loss, DI linkage and other alarm outputs. Exclusive software self-calibration ensures accuracy remains stable throughout the service life (typically 10+ years), avoiding "data depreciation" and replacement costs due to accuracy degradation.
Product Features
Key FeaturesComprehensive Monitoring
Monitors three-phase voltage/current (external CT), frequency, three-phase power, total power (active, reactive, apparent), three-phase power factor and other full parameters
Key Parameters Expansion
High-speed chips capture key parameters accurately, quickly, and stably, enabling early prediction while adding more parameters, supports 0-2000A metering
All-Climate Sensor
Non-contact split-core sensors operate stably under strong electromagnetic interference
Comprehensive Output Alarm
Output alarm status normal, can write control output alarm settings: open/close, configurable control
Compact and Flexible
Supports linkage control; standard OLED display and physical buttons for convenient on-site query and configuration; RS485 communication, Modbus; 36mm compact width
High Accuracy
Default Class 0.5, with split-core sensors up to Class 0.2s, current monitoring range 0-6000A
Product Advantages
Product AdvantagesPermanent Online Accuracy
Core measurement accuracy reaches Class 0.2S, far exceeding common Class 1.0 meters. Exclusive software self-calibration enables remote or local calibration after accuracy drift, reducing maintenance costs by 90%.
All-in-One
70+ electrical data parameters, DC5V/AC220V dual Power Supply, integrated 2-channel DI/1-channel DO/RS485. Highly integrated design replaces multiple devices in traditional solutions, improving installation efficiency by 50%.
Smart Sentinel
From monitoring, alarm to automated response. Supports auto-linkage of 8 alarm sources, going beyond simple threshold alarms to enable complex logic such as "overcurrent AND door open", and auto-starts fans and alarms.
Complete Data Dictionary
Complete address table with 200+ readable/writable registers. All parameters, data, and settings are fully transparent. Standard Modbus-RTU protocol enables direct access from SCADA/BA/EMS/cloud platforms.
Ultimate Interactive Experience
High-brightness OLED display with smart menu, red/green/pulse tri-color independent indicators. Device status and alarm categories can be accurately identified within 0.1s from 10 meters away.
Wide-Temperature Reliable Operation
-20°C~60°C wide-temperature operation, UL94V0 flame-retardant material, 50,000 hours MTBF. Pluggable terminals enable tool-free wiring, improving efficiency by 80%.
Selection Guide
Model Selection GuidePosition 1 · Power
1=DC5V
2=AC220V
Position 2 · Display
1=7-segment
2=OLED
Position 3 · Wiring
1=Three-phase four-wire
Position 4 · Current Parameter
1=0~5A
2=0~100A
3=0~400A
4=0~600A
Position 5 · I/O
1=1-channel relay output
2-channel digital input
R · Communication
RS485
Selection Table
| Model | Power Supply | Display | Current | Voltage | Other Parameters | DI Inputs | Relay Output | RS485 MODBUS |
|---|---|---|---|---|---|---|---|---|
| ESA-12111-R | DC5V | OLED | 0~5A | 220/380V | All Parameters | 2-channel | 1-channel | Yes |
| ESA-12121-R | DC5V | OLED | 0~100A | 220/380V | All Parameters | 2-channel | 1-channel | Yes |
| ESA-12131-R | DC5V | OLED | 0~400A | 220/380V | All Parameters | 2-channel | 1-channel | Yes |
| ESA-12141-R | DC5V | OLED | 0~600A | 220/380V | All Parameters | 2-channel | 1-channel | Yes |
| ESA-22111-R | AC220V | OLED | 0~5A | 220/380V | All Parameters | 2-channel | 1-channel | Yes |
| ESA-22121-R | AC220V | OLED | 0~100A | 220/380V | All Parameters | 2-channel | 1-channel | Yes |
| ESA-22131-R | AC220V | OLED | 0~400A | 220/380V | All Parameters | 2-channel | 1-channel | Yes |
| ESA-22141-R | AC220V | OLED | 0~600A | 220/380V | All Parameters | 2-channel | 1-channel | Yes |
Other electrical parameters include: frequency, power, power factor, etc.
Technical Parameters
Technical SpecificationsBasic Parameters
| Parameter | Specification |
|---|---|
| Operating Voltage | DC 4.75~5.25V(5V) / AC 180~250V(220V) |
| Operating Temperature | -20℃ ~ 60℃ |
| Weight | 150g |
| Enclosure Material | Thermoplastic 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 |
Monitoring Functions
| Parameter | Specification |
|---|---|
| Voltage (AC) | Rated 220V/380V, overload 1.2x (continuous)/2x (1s), Accuracy Class 0.5/0.2s |
| Current (AC) | Rated 5A/100A/400A/600A, overload 1.2x (continuous)/2x (1s), Accuracy Class 0.5/0.2s |
| Frequency | 45~65Hz, accuracy 0.01Hz |
| Active Energy | Accuracy Class 1 |
| Reactive Energy | Accuracy Class 2 |
| DI Input | Dry contact input, built-in power |
| DO Output | Relay output, contact capacity AC250V/3A DC30V/3A, normally open contact |
Installation Instructions
Installation GuideInstallation Dimensions
Dimensions
Standard 35mm DIN rail mounting, Dimensions: 36×110×69mm(L×W×H)
Sensor Description
Sensor Description5A 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 Diagram
Interface Description
Key Points
- Definition： The ESA Smart Meter is FEXLINK's smart-meter variant of the ESA Electrical Safety Monitoring Terminal with integrated power/energy metering.
- Core Capabilities： Adds active/reactive energy, demand and other metering functions on top of residual current, temperature and voltage monitoring, supporting energy analysis.
- Scenarios： Suitable for distribution cabinets, commercial complexes and industrial parks where electrical safety and energy management are equally important.
- Related Products： ESA Electrical Safety Terminal, SFA Multi-Element Controller, ZSA Embedded Multi-Function Meter.
Frequently Asked Questions
Product FAQ
What is ESA Smart Meter?
The ESA Smart Meter is FEXLINK's smart-meter variant of the ESA Electrical Safety Monitoring Terminal with integrated power/energy metering.
What scenarios does ESA Smart Meter apply to?
Suitable for distribution cabinets, commercial complexes and industrial parks where electrical safety and energy management are equally important.
How does ESA Smart Meter differ from traditional solutions?
Compared with the standard ESA, the smart-meter variant adds energy metering and energy analysis, offering multi-purpose use and saving installation space.
How is ESA Smart Meter installed and integrated?
DIN-rail mount inside the distribution cabinet, connect voltage/current transformers and residual-current CTs, and wire the RS485 bus.
How can I purchase FEXLINK products or request a demo?
Submit requirements via the Contact page on the FEXLINK website, or call +86-755-8653-6148 to request a demo and selection consultation; engineers will propose a matched solution and quotation based on your scenario.
FEXLINK Business Scope
FEXLINK specializes in smart lightning protection and electrical safety, offering a product portfolio covering lightning protection, lightning online monitoring, lightning protection online monitoring, lightning arrester, intelligent lightning arrester, lightning arrester monitoring, grounding resistance, grounding monitoring for smart lightning protection scenarios, while addressing digital distribution, smart distribution, electricity meter, carbon neutral, industrial internet, carbon asset for digital business, helping enterprises achieve safe, efficient and low-carbon energy management.