Product Overview

Single Phase Din Rail Prepaid Energy Meter is an advanced utility-grade solution engineered for precise electricity measurement, multi-tariff billing, and automated load control. Compliant with international IEC standards, it is specifically designed for energy supply companies, smart apartments, and commercial power management requiring robust revenue protection and long-term field grid stability.

Technical Specifications

Parameter Category	Specific Specifications
Starting Current	20mA (High sensitivity)
Rated Voltage	230V (Operational range: 70% – 120% Un)
Rated Current	5(60)A
Accuracy Class	Class 1 for active energy
Frequency	50Hz / 60Hz
Insulation Class	Grade II
Meter Pulse Constant	1000 imp/kWh, 1000 imp/kvarh (optional)
Advanced Clock (RTC)	Hardware-supported independent Real-Time Clock (Calendar range: 2000 – 2099).
Internal Battery	1200mAh Lithium battery for RTC and enclosure tamper logging under power-off state (Ultra-low standby: <2μA online / <20μA offline).

Core Advantages

Enclosure-open recording (active even during blackouts), reverse current detection, and magnetic interference defense with an automated 100A relay trip.
Records up to 100 historical logs per category for power quality issues, relay operations, and tampering alerts with exact timestamps and durations.
Supports up to 4 tariffs (T1–T4), 8 daily profiles, 6 weekly profiles, 12 seasons, and 100 holidays for complex time-of-use pricing models.
Captures daily/monthly load profiles and maximum demand (15-min intervals). Stores 13 months of historical monthly data and 7 days of daily profiles.
Compact 35mm DIN rail mounting (DIN EN 50022) with V0-grade flame-retardant PC/ABS housing and IP51 rating.

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System Integration & Interoperability

STS Token Management: Standard 20-digit STS Token configuration via local keypad or Customer Interface Unit (CIU). Tracks and stores the last 50 valid recharge tokens.

Triple-Port Communication: Optical Port: Fully compliant with IEC 62056-21, DLMS Mode E (300/9600 bps).

PLC Module: Robust Power Line Communication for seamless data exchange with the CIU.

Modular Uplink (AMI/AMR): Plug-and-play expansion for LoRaWAN, NB-IoT, 4G, and Wi-Fi networks.

MC171 Port (Optional): Supports data reading and audit trailing during complete power outages.

Compliance & Quality Control

International Standards: Strictly manufactured to IEC 62052-11, IEC 62053-21, IEC 62055-41 (STS), and IEC 61000 (EMC) standards.

100% Factory Tested: Every unit undergoes automated calibration and a mandatory 24-hour full-load factory aging test before shipment. No random batch sampling.

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Supply Chain & Customization

OEM/ODM Services: Custom branding, laser engraving, localized firmware (overload thresholds/vending defaults), and tailored casing configurations.

Documentation: Full type-test reports, factory calibration certificates, dimension layouts, and multi-language technical manuals provided.

FAQ

Q: Is your meter fully compatible with our existing vending software?

A: Yes. It strictly complies with standard STS protocols (IEC 62055-41), ensuring seamless integration with any standard STS vending system.

Q: How does the meter protect against energy theft?

A: It features hardware detection for terminal opening, reverse current, and magnetic interference. Any breach triggers an immediate log and automated relay trip.

Q: Does the meter log data and tampering during a power outage?

A: Yes. A built-in 1200mAh lithium battery ensures the independent hardware RTC runs and cover-opening events are recorded even during grid blackouts.

Q: What communication options are available for remote reading and CIU?

A: It features a DLMS Mode E optical port, a PLC module for local CIU connection, and an optional MC171 port for power-off reading. Uplinks can expand via plug-and-play LoRaWAN/NB-IoT/4G/Wi-Fi modules.

Q: Do you test every unit before shipment?

A: Yes. Every single unit undergoes 100% automated calibration and a mandatory 24-hour full-load factory aging test. We do not do random sampling.

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