The XZ388 Integrated Three Phase STS Prepaid Energy Meter is an advanced smart metering solution designed for residential, commercial, and industrial electricity management applications. Built to perform in challenging grid environments, the XZ388 combines STS prepaid technology, high surge protection, smart communication capabilities, and advanced anti-tamper functions to deliver secure and accurate energy management.Designed for three-phase four-wire power systems, the XZ388 supports high-load applications with reliable operation under unstable voltage conditions, frequent brownouts, and power fluctuations. With up to 13kV lightning surge protection, wide voltage tolerance, and 30V/m RF immunity, it provides dependable performance in harsh electrical environments.The XZ388 is an ideal utility revenue protection device for electricity providers, enabling efficient prepaid billing, remote monitoring, and intelligent load control through modern AMR/AMI systems.
The XZ388 uses Standard Transfer Specification (STS) prepaid technology to provide secure and flexible electricity credit management.
Key functions include:
Secure prepaid electricity token management
Prepayment and credit mode hot switching
Automatic load disconnection during:
Overload conditions
Insufficient credit situations
Programmable load limits
Low credit warning alerts
The XZ388 is engineered for regions where electricity networks experience frequent voltage instability.
Lightning surge protection up to 13kV
Wide operating voltage capability from -50% to +130%
High resistance against voltage dips and fluctuations
| Parameter | Specification |
|---|---|
| Model | XZ388 |
| Product Type | Integrated Three Phase STS Prepaid Energy Meter |
| Prepaid Technology | STS |
| Accuracy Class | Class 1.0 |
| Network Type | Three Phase Four Wire |
| Nominal Voltage | 230V |
| Voltage Range | -50% to +130% |
| Limited Voltage | 70%–120% Un |
| Frequency | 50–60Hz |
| Frequency Tolerance | ±5% |
| Basic Current (Ib) | 5A |
| Maximum Current (Imax) | 80A |
| Starting Current (Ist) | 20mA |
| Active Energy Constant | 1000 imp/kWh |
| Voltage Circuit Consumption | <2W / <8VA |
| Current Circuit Consumption | <1VA |
| Measurement Accuracy | Class 1.0 |
| Operating Temperature | -25°C to +70°C |
| Storage Temperature | -40°C to +85°C |
| Insulation Level | 4kV rms / 1 minute |
| Voltage Impulse Withstand | 8kV (1.2/50μs) |
| Protection Class | Class II |
| Enclosure Protection | IP54 |
| Maximum Cable Size | 8mm |
| Test Item | Performance |
|---|---|
| Lightning Surge Protection | Up to 13kV |
| Contact Discharge | 8kV |
| Air Discharge | 16kV |
| RF Immunity (27MHz–500MHz) | 10V/m |
| RF Immunity (100kHz–1GHz) | 30V/m |
| Fast Transient Burst Test | 4kV |
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The XZ388 Integrated Three Phase STS Prepaid Energy Meter is an advanced smart metering solution designed for residential, commercial, and industrial electricity management applications. Built to perform in challenging grid environments, the XZ388 combines STS prepaid technology, high surge protection, smart communication capabilities, and advanced anti-tamper functions to deliver secure and accurate energy management.Designed for three-phase four-wire power systems, the XZ388 supports high-load applications with reliable operation under unstable voltage conditions, frequent brownouts, and power fluctuations. With up to 13kV lightning surge protection, wide voltage tolerance, and 30V/m RF immunity, it provides dependable performance in harsh electrical environments.The XZ388 is an ideal utility revenue protection device for electricity providers, enabling efficient prepaid billing, remote monitoring, and intelligent load control through modern AMR/AMI systems.
The XZ388 uses Standard Transfer Specification (STS) prepaid technology to provide secure and flexible electricity credit management.
Key functions include:
Secure prepaid electricity token management
Prepayment and credit mode hot switching
Automatic load disconnection during:
Overload conditions
Insufficient credit situations
Programmable load limits
Low credit warning alerts
The XZ388 is engineered for regions where electricity networks experience frequent voltage instability.
Lightning surge protection up to 13kV
Wide operating voltage capability from -50% to +130%
High resistance against voltage dips and fluctuations
| Parameter | Specification |
|---|---|
| Model | XZ388 |
| Product Type | Integrated Three Phase STS Prepaid Energy Meter |
| Prepaid Technology | STS |
| Accuracy Class | Class 1.0 |
| Network Type | Three Phase Four Wire |
| Nominal Voltage | 230V |
| Voltage Range | -50% to +130% |
| Limited Voltage | 70%–120% Un |
| Frequency | 50–60Hz |
| Frequency Tolerance | ±5% |
| Basic Current (Ib) | 5A |
| Maximum Current (Imax) | 80A |
| Starting Current (Ist) | 20mA |
| Active Energy Constant | 1000 imp/kWh |
| Voltage Circuit Consumption | <2W / <8VA |
| Current Circuit Consumption | <1VA |
| Measurement Accuracy | Class 1.0 |
| Operating Temperature | -25°C to +70°C |
| Storage Temperature | -40°C to +85°C |
| Insulation Level | 4kV rms / 1 minute |
| Voltage Impulse Withstand | 8kV (1.2/50μs) |
| Protection Class | Class II |
| Enclosure Protection | IP54 |
| Maximum Cable Size | 8mm |
| Test Item | Performance |
|---|---|
| Lightning Surge Protection | Up to 13kV |
| Contact Discharge | 8kV |
| Air Discharge | 16kV |
| RF Immunity (27MHz–500MHz) | 10V/m |
| RF Immunity (100kHz–1GHz) | 30V/m |
| Fast Transient Burst Test | 4kV |
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