SINGLE PHASE SMART STS PREPAID ELECTRIC METER
General View
The S12U16 is a high-performance single-phase smart prepaid meter designed for residential and commercial applications. Built with advanced microelectronics and compliant with EN, IEC and STS standards, it supports secure token-based recharging, multi-tariff billing, and real-time monitoring. Its modular communication and anti-tamper features make it ideal for modern energy infrastructure and utility-grade deployments.
METER TYPE
Single-phase, 2-wire, direct-connected
ACCURACY CLASS
Active Energy: Class 1.0, Reactive Energy: Class 2.0
VOLTAGE RATING
220 V (operating range: +15%/−40%)
CURRENT RATING
5(80)A
FREQUENCY
50 Hz±5%
PULSE CONSTANT
1000 imp/kWh & 1000 imp/kVARh
PROTECTION
IP54, Class II insulation, surge protection up to 4kV, Lightning Protection
DISPLAY
Industrial-grade LCD with Arabic/English interface
BATTERY BACKUP
Internal lithium battery with 15-year life
METER LIFETIME
>15 years
MATERIAL
Polycarbonate + 20% GF, fire-resistant casing
- Real-time monitoring of voltage, current, and power factor (true RMS)
- Instantaneous & cumulative energy registers
- Tamper detection: cover open, magnetic interference, reverse current, bypass, overload
- Event logging with timestamp, Push to System
- Load profile – 4 configurable channels
- Relay control: remote/manual/disconnect logic
- Self-diagnostics & alarm filtering
- Daylight saving time adjustment & calendar scheduling
- Dual-source metering (EB/DG) for residential complexes
- Near-Infrared
- RS485 (DLMS/COSEM HDLC)
- GPRS/3G/4G/NB-IoT (Modular)
- Ethernet & Optical Fiber (Optional)
- IDIS Certified for interoperability
- Remote firmware upgrade & event push to HES
SECURITY & COMPLIANCE
- AES-GCM-128 encryption, ECC256 for public networks
- DLMS/COSEM compliant
- Multi-level password access (A1–A4)
- Secure token exchange per IEC 62055-41
- Event filtering, tamper latching, and programmable thresholds
- Complies with: IEC 62052-11 / IEC 62053-21 / IEC 62053-24 / IEC 62055-41
- IEC 62056 series (data exchange)
- EN 50470-1 / EN 50470-3
- ISO 9001 / ISO 14000
PREPAYMENT & TARIFF MANAGEMENT
- STS-Compliant Token Recharge
- Up to 8 Tariff Rates with 12 time periods
- TOU & Step Tariff Support
- Emergency Overdraft & Friendly Mode
- Balance & Overdraft Alarms (Visual & Audible)
- Token types: Recharge, Key Change, Tariff Update, Event Clear, Friendly Mode, Holiday Mode
- Monthly & Daily Settlement with 12-period history
(L X W X H) 250 mm x 140 mm x 82 mm
