ESP Neutral-Ground Voltage Monitor - monitoring
Real-Time monitoring of neutral-ground voltage dynamics, detecting hazards to ensure safe System Operation
High-precision dynamic algorithm model with error-correction support ensures stable operation in demanding scenarios. Highly integrated for easy field installation; with dedicated gateway, only 20% of conventional workload is needed for integration.
Product Overview
The ESP Neutral-Ground Voltage Monitor monitors neutral-ground voltage dynamic values in Real-Time, detecting hidden dangers to ensure safe System Operation.
Widely applicable in: medical equipment, electronics and computer-controlled precision machinery, UPS power supplies, laboratories, server rooms, hospitals, R&D centers, banks, energy storage systems, military facilities, etc. Highly integrated for easy field installation without complex configuration; with dedicated gateway, only 20% of conventional workload is needed.
Core Monitoring Capabilities
- Real-Time neutral-ground voltage monitoring, range 0-400V, accuracy Class 0.5.
- High-precision dynamic algorithm model + error-correction algorithm for stable operation in demanding scenarios.
- 2-ch DI input alarm + 1-ch DO relay output alarm, supports linkage control.
- OLED display + multi-level menu for local and cloud query management.
Product Features
Alarm Function
Input alarm: 2-ch DI input alarm; output alarm: 1-ch DO alarm; alarm query: query alarm info via OLED screen.
Dynamic Algorithm
Dynamic algorithm for high-precision neutral-ground voltage monitoring: uses high-precision dynamic algorithm model with error-correction support, ensuring stable operation in demanding scenarios.
Multi-Level Menu
Powerful query management menu enables various local and cloud applications.
Output Alarm
Output alarm status: normal or abnormal; closed or open; output alarm control source: closed OR open output; alarm condition logic: set command or condition; output alarm control source: linkage control.
Comprehensive
Polling display: auto-switches electrical parameter display every 10s; module stays on the entered parameter screen; sampling accuracy: up to ±0.5%.
Plug-and-Play Integration
Highly integrated product for easy field installation without complex configuration; with dedicated gateway, only 20% of conventional workload is needed.
Selection Guide
Model Naming Rules
| Model | Power Supply | Display | Voltage | Neutral Input | DI Inputs | Relay Output | RS485 |
|---|---|---|---|---|---|---|---|
| ESP-12101-R | External 5V | OLED | Yes | Yes | 2 | 1 | Yes |
Technical Parameters
Basic Parameters
| Operating Voltage | DC 4.75~5.25V (5V) |
| Power Consumption | ≤2W |
| Operating Temperature | -20℃~60℃ |
| Operating Humidity | <95% |
| Weight | 150g |
| Dimensions | 36*110*69mm(L×W×H) |
| Enclosure Material | Thermoplastic UL94V0 |
| Protection Rating | IP20 |
| Mounting | Standard 35mm DIN rail |
| Display | OLED |
| Communication | RS485 |
| Protocol | Modbus |
Monitoring Functions
| Neutral-Ground Voltage | Monitoring range: 0-400V; accuracy: Class 0.5/0.2s |
| DI Input | Dry contact input, built-in power |
| DO Output | Relay output; contact capacity: AC250V/3A, DC30V/3A; normally open contact |
Installation Instructions
Installation Dimensions
Interface Diagram
Wiring Definition
| Terminal | Definition |
|---|---|
| 5V | 5V DC power input |
| GND | 0V |
| N | AC neutral input |
| PE | Ground (PE) |
| A | RS485 A |
| B | RS485 B |
| DI1 | DI 1 (other end to GND, no polarity) |
| DI2 | DI 2 (other end to GND, no polarity) |
| DO1 | Output (relay, no polarity) |
| DO1' | Output' (relay, no polarity) |
Key Points
- Definition： The ESP Neutral-to-Ground Voltage Monitor is FEXLINK's electrical safety device dedicated to N-PE voltage monitoring.
- Core Capabilities： Real-Time N-PE voltage monitoring with threshold alarms and RS485 upload, suitable for equipment-room and precision-equipment supply quality monitoring.
- Scenarios： Suitable for data centers, telecom equipment rooms and precision manufacturing sensitive to neutral-to-ground voltage.
- Related Products： ESA Electrical Safety Terminal, ESE Power Quality Monitor, SFA Multi-Element Controller.
Frequently Asked Questions
Product FAQ
What is ESP Neutral-to-Ground Voltage Monitor?
The ESP Neutral-to-Ground Voltage Monitor is FEXLINK's electrical safety device dedicated to N-PE voltage monitoring.
What scenarios does ESP Neutral-to-Ground Voltage Monitor apply to?
Suitable for data centers, telecom equipment rooms and precision manufacturing sensitive to neutral-to-ground voltage.
How does ESP Neutral-to-Ground Voltage Monitor differ from traditional solutions?
Compared with ordinary voltmeters, the ESP focuses on continuous N-PE voltage monitoring and alarming, helping O&M teams promptly address grounding issues.
How is ESP Neutral-to-Ground Voltage Monitor installed and integrated?
DIN-rail mount inside the distribution cabinet, connect N/PE terminals, and configure thresholds after wiring 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.
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FEXLINK Business Scope
FEXLINK 微物联，专注配电场景电气安全与数字能源技术研发。我们以多维精准感知与智能算法为核心，通过端侧感知芯片、多维电气时序特征算法、三层电碳大模型，实现雷电防护、接地监测、电气隐患识别；同步完成配电计量、电能质量分析、回路级碳排核算。面向老旧柜体与工业配电，构建从现场采集、本地芯片推理到云端电碳智能中枢的端云协同体系，赋能能源安全管控、能效优化与低碳数字化落地。