STE18-A STS Standard Single Phase Prepaid Energy Meter with 80A Capacity and TOU Tariff Functionality
STE18-A is an STS Standard compliant single phase energy meter featuring keypad operation and automatic connection/disconnection capabilities. This prepaid meter enables customers to purchase electricity through vending networks and input encrypted 20-digit tokens via the keypad interface.
- IP54 waterproof rating for outdoor durability
- Up to 8 years battery life for reliable operation
- Remote connection/disconnection functionality
- STS Standard compliance for interoperability
- Real-time clock for accurate time-based operations
- Configurable TOU (Time-of-Use) pricing via token input
- Anti-tamper magnetic field protection
- Optional LORA-RF communication module
- Mobile payment integration (M-PESA, Alipay, MTN, Airtel)
| Parameter | Specification |
|---|---|
| Nominal Voltage | 230V |
| Working Voltage Range | 70%-120% Un |
| Nominal Frequency | 50-60Hz |
| Basic Current (Ib) | 5A |
| Maximum Current (Imax) | 80A |
| Starting Current (Ist) | 20mA |
| Measurement Accuracy | Class 1.0 |
| Operation Temperature | -25℃ to 70℃ |
| Test | Performance |
|---|---|
| AC Insulation Strength | 4kV at 50Hz during 1min |
| Impulse Voltage (1.2/50 μs) | 8kV |
| Electrostatic Discharge (Contact) | 8kV |
| Electrostatic Discharge (Air) | 16kV |
| Electromagnetic RF Field | 27MHz-500MHz: 10V/m, 100KHz-1GHz: 30V/m |
| Fast Transient Burst Test | 4kV |
- Meter recharge via token input
- Active energy measurement
- Maximum demand measurement
- Auto scroll mode display
- Built-in relay control
- Event logging system
- Low credit alarm notification
Meters can be configured with TOU tariffs through token input or IR adaptor. Utilities can implement step pricing structures such as:
- Step 1: 00:00-07:00 at $1/Kwh
- Step 2: 07:00-17:30 at $1.5/Kwh
- Step 3: 17:30-24:00 at $1/Kwh
- Automatic valve closure upon magnetic field detection
- Cover open event detection and response
- Overdraft collection (daily or monthly)
- Information inquiry via short codes
Available through local sales points or handheld mobile vending units for convenient customer access.
API connectivity enables integration with third-party platforms and local mobile payment systems, allowing users to recharge via mobile phone applications.
Mobile Payment Benefits:
- Convenient electricity top-up from home
- Real-time information access via telephone
- Enhanced revenue protection for utilities
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