THREE-PHASE SMART DC METERS
THREE-PHASE SMART DC METERS
General View

The S34U18 is a three-phase smart electricity meter designed for high-precision energy measurement and advanced grid integration. Built with cutting-edge microelectronics and SMT technology, it complies with international standards including IEC 62052-11, IEC 62053-22/23, and DLMS/COSEM protocols.

METER TYPE :
3-phase, 4-wire, direct connected
MEASUREMENT CAPABILITIES :
Active & reactive energy (import/export), demand, instantaneous values
ACCURACY CLASS :
Class 0.5S (Active), Class 2 (Reactive)
DISPLAY:
Industrial-grade LCD with Arabic/English interface, 160° viewing angle, Backlight screen
CURRENT RATING:
5(100)A
VOLTAGE RATING :
3×220/380V (operating range: +30%/−40%)
FREQUENCY:
50 Hz ±5%
RELAY :
Magnetic latching relay, 120A max, 3 poles (UC3)
POWER FACTOR RANGE:
Lag – Unity – Lead
PROTECTION:
IP54, with lightning protection per IEC 1036
BATTERY BACKUP :
RTC supported for 15 years during outages
COMMUNICATION :
Optical port, RS485 (RJ45), PLC+RF, G3/PRIME, 3G/4G/NB-IoT
  • Measurement of active/reactive energy (Import/export)
  • Maximum demand tracking with historical logs
  • Multi-tariff support with up to 8 configurable rates
  • Load profile recording: voltage, current, power, and energy level
  • Remote & local firmware upgrades
  • Relay control via manual, remote, or automatic logic
  • Tamper detection: cover opening, magnetic interference, current reversal
  • Event logging for power quality, disconnection, and tamper events
  • Optional Feature – Street Light Control: Sunrise/sunset relay disconnect/connect based on astronomical calculation
  • Optical Port : Local programming and data retrieval
  • Remote Module : Plug-in unit for WAN connectivity (TCP/IP)
  • Dual RS485 ports with RJ45 terminals enable reliable digital communication and system integration
DISPLAY MODES
  • Auto mode : Auto scroll display of key metrics
  • Manual mode : Scroll through detailed readings
  • Test mode : Diagnostic and accuracy testing
  • Sleep mode (optional) : Energy-saving display standby
SECURITY & RELIABILITY

Cyberattack detection and logging
High-level Security with encrypted communication, DLMS/COSEM compliance, and support for Suite 1–upgradable to Suite 2 for enhanced interoperability and future scalability.

COMPLIANCE & STANDARDS
  • DLMS/COSEM compliant
  • IEC 62052-11 / IEC 62053-22 / IEC 62053-23
  • IEC 62056 series
  • IEC 60529
  • IEC 60060 / IEC 60068
  • BS EN50470-1 / BS EN61268

(L X W X H) 251 mm x 170 mm x 79 mm