

Add to Cart
single phase two wire STS prepaid energy meter with enclosure, meter box protection
The Single Phase Two Wire STS Prepaid Energy Meter with Enclosure is a reliable and efficient solution for energy management, designed for residential and small commercial applications. This meter operates on a two-wire system, making it ideal for simple and cost-effective installations. It is fully compliant with the Standard Transfer Specification (STS), ensuring secure, tamper-proof transactions and accurate energy measurements.
The meter features a built-in enclosure, offering additional protection against environmental factors and physical damage. The meter box ensures durability, providing both mechanical protection and safeguarding the device against tampering or theft. The sturdy enclosure makes this meter perfect for outdoor installations or areas where meters are exposed to harsh conditions.
With prepaid functionality, this energy meter allows users to pay in advance for the energy they consume, preventing billing disputes and ensuring better control over electricity usage. The meter supports secure token-based recharging, and its integration with vending systems allows for seamless transactions. Additionally, the long battery life ensures consistent performance, even in remote locations with limited access to power.
This single-phase prepaid energy meter is an excellent choice for utilities looking to improve revenue collection, reduce energy theft, and offer consumers a transparent and convenient way to manage their electricity consumption.
Key Features
Dual-source measurement capability.
Communication via RF-Lora, RS485, and infrared ports.
Supports both prepaid and postpaid payment modes.
Power shutdown in case of overload or depletion of credit.
Configurable power limits and low credit alert settings.
Built-in tamper detection with automated reporting.
Key Benefits
a) Easy integration with user interface units (UIU) for modular applications.
b) Support for Time-of-Use (TOU), multiple tariff structures, and holiday schedules.
c) High-precision performance.
d) Meter recharge by simply entering a 20-digit token code.
e) Data is permanently stored throughout the meter’s lifespan.
Specifications:
Nominal voltage Un | 220/230/240 V |
Limited voltage | 70%~120%Un |
Nominal frequency fn | 50-60Hz+5% |
Basic current(Ib) | 5-10A |
Maximum current(Imax) | 60-100A |
Starting current(Ist) | 20mA |
Active energy constant | 1000imp/kWh |
Accuracy as Active energy to IEC62053‐21 | Class1.0 |
Power consumption in Voltage circuit | <2W <8VA |
Power consumption in current circuit | <1VA |
Operating temperature | 25℃ to+70℃ |
Storage temperature | 40℃ to+85℃ |
Insulation level | 4kV rms for 1min |
Impulse voltage withstand | 8kV, 1.2/50 μs |
Air discharge | 16kV |
Immunity to HF fields | |
80MHz to 2GHz with load | 10V/m |
100kHz to 1GHz without load | 30V/m |
Fast transient burst test | 4kV |
Meter shell Protection Rate | IP54(IEC60529) |
Insulation System Classification | Protective Class II |