Product Overview

Single Phase 4P Digital Din Rail Meter is engineered for high-precision active energy measurement and safe sub-metering in residential, EV charging stations, and commercial electrical distribution systems.

Fully compliant with standard 35mm DIN rail installations, this compact 4-module meter offers robust RS485 Modbus-RTU communication for seamless integration into building management systems (BMS) and IoT energy platforms. All units are manufactured under our ISO 9001:2015 certified quality management system and undergo 100% automated calibration and testing procedures before shipment.

Technical Specifications

Parameter Category	Specific Specifications
Display Method	LCD Display
Rated Voltage	220V
Rated Current	5(20)A 10(40)A 15(60)A 20(80)A
Accuracy Class	Class 1.0
Installation Method	35mm rail installation
Dimensions (W×H×D)	72×100×65mm (±1mm)

Key Features

Complies with MID (Class B) and CE (EN50470) standards, providing the required legal compliance for commercial sub-billing across international markets.
Maintains reliable Class 1.0 measurement accuracy over a 10-year service life to prevent utility and tariff billing disputes.
Built with a standard RS485 Modbus-RTU interface for direct connection to EV charging stations and building energy management systems.
Features a 6kV impulse withstand voltage rating to protect the internal circuitry against power line surges and voltage spikes.
Constructed from UL94-V0 flame-retardant housing and includes physical sealing slots to secure the device against tampering.

Modbus Register Map & Data Points

To facilitate rapid software integration for system developers, this meter provides real-time access to the following critical registers:
Real-time Electrical Parameters: Voltage (V), Current (A), Active Power (kW), Power Factor (PF), Grid Frequency (Hz).

Energy Accumulation Registers: Total Forward Active Energy (kWh), Reverse Active Energy (kWh).

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OEM/ODM Customization Capabilities

OEM/ODM Tailored Solutions for EV Charger Manufacturers
We act as an agile manufacturing partner for worldwide energy solution brands, offering the following full-scale customization services:
Private Labeling: High-resolution fiber laser engraving for your logo, wiring diagrams, and unique QR codes on the meter housing.

Software & Protocol Twaking: Factory-preset unique Modbus ID addresses, custom baud rates, or specific parity settings to allow true plug-and-play field installation.

Firmware Optimization: Custom registers matching your proprietary EV charging software or BMS platform.

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Target Applications

EV Charging Infrastructure: Built-in metering for residential and commercial AC charging piles.

Commercial Sub-metering: Independent energy tracking for shopping malls, office buildings, and apartments.

Industrial Automation: Real-time power monitoring and data acquisition within factory distribution panels.

FAQ

Q: Does the meter have the required certifications for commercial billing in our market?

A: Yes. It is certified to MID (Class B) and CE standards, making it legally compliant for commercial sub-billing and energy management applications in the EU and global markets.

Q: Can we customize the Modbus registers, branding, and casing for our EV charging projects?

A: Yes. We offer OEM/ODM services including custom laser engraving, tailored packaging, and factory-preset Modbus addresses or specific register configurations for orders over 500 units.

Q: How do you guarantee the reliability and low failure rates of your meters?

A: Every unit undergoes 100% automated computer calibration (eliminating human error) followed by a mandatory 48-hour continuous load burn-in test at 50°C before final packaging.

Q: What is the standard lead time for a bulk B2B order, and can we get samples first?

A: Technical evaluation samples ship within 3 to 5 working days. Bulk production for standard orders up to 5,000 units typically takes 15 to 20 days.

Q: Can we get the Modbus Register Map for software integration before ordering?

A: Yes, our technical support engineers provide complete Modbus protocol register maps and wiring diagrams to system integrators upon request.

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