Iskraemeco MT174 3-Phase TOU Energy Meter (Direct / CT Connected)
 
Description:
The Iskraemeco MT174 is a reliable polyphase multi-tariff energy meter designed for residential, commercial, and small industrial energy metering applications. Built with a future-proof design, the MT174 provides accurate measurement of active, reactive, and apparent energy while supporting advanced tariff structures and load profiling.
 
The meter supports both direct connection and CT-connected configurations, allowing flexible installation across various low-voltage metering environments. With integrated RS485 communication and optical interface, the MT174 is well suited for automated meter reading (AMR) and smart metering systems.
 
Designed with photovoltaic-ready functionality, the MT174 can accurately measure both import and export energy flows, making it suitable for solar PV installations. Advanced anti-tampering protection, real-time clock functionality, and extended load profile recording ensure reliable and secure energy monitoring.
 
Key Features:
3-phase polyphase energy meter
Direct connected or CT-connected versions available
Measurement of active, reactive, and apparent energy
Bi-directional energy measurement (import/export) for solar PV systems
4-quadrant reactive energy measurement
Time-of-Use (TOU) tariff functionality with internal tariffication
Supports up to 4 tariff models
Built-in real-time clock (RTC) for tariff switching
Extended load profile recording
Optical communication port
RS485 communication interface
Photovoltaic-ready design
Advanced anti-tampering protection
Magnetic field detection
Maximum demand measurement
Backlit LCD display with event indicators
IP54 enclosure protection
 
Measurement Capabilities:
Active Energy (Import / Export)
Reactive Energy (Import / Export – 4 Quadrants)
Apparent Energy
Phase voltage and current measurements
Power factor per phase
Network frequency measurement
Instantaneous power measurement
Maximum demand calculation
 
Tariff & TOU Functions:
Multi-rate Time-of-Use (TOU) tariff support
Up to 4 tariff registers
Advanced tariff programming with:
Up to 10 seasons
10 weekly programs
10 daily tariff definitions
Up to 46 holidays
 
Load Profile & Event Recording:
Load profile recorder with up to 8 channels
Programmable recording intervals:
5, 10, 15, 30, 45, or 60 minutes
Event logging for:
Tamper detection
Meter wiring changes
Communication access
System events
 
Communication Interfaces:
Interface
Function
Optical Port
Local configuration and meter reading
RS485
AMR / SCADA / remote monitoring
 
 
Technical Specifications:
Network: 3-phase (3P4W or 3P3W)
Nominal Voltage: 3 × 230 / 400 V
Frequency: 50 Hz / 60 Hz
Base Current: 5A or 10A (direct connection)
Maximum Current: 85A / 100A / 120A (direct versions)
CT Version: 1A
Accuracy Class: Class 1 or Class 2
Operating Temperature: −40°C to +60°C (extended to +70°C)
Protection Rating: IP54
 
Ideal Applications:
✔ Residential and commercial energy billing
✔ Smart metering systems and AMR platforms
✔ Solar PV import / export monitoring
✔ Building energy management systems
✔ Utility and municipal energy metering
 
Lead Time:
1 - 3 Days.