What communication protocols are supported?

The meter supports RS485 with Modbus-RTU protocol. A second RS485 port and infrared communication are optional.

What is the warranty period for this product?

We provide a 2-year warranty for the ADL400 power meter.

Acrel Adl400/C MID Approved Power Meter DIN Rail Multi with RS485 IoT Platform

Name: Acrel Adl400/C MID Approved Power Meter DIN Rail Multi with RS485 IoT Platform
Brand: ACREL CO., LTD.
SKU: 2085075715

Shanghai, ChinaACREL CO., LTD.

US$46.60

1 Piece

Sample price:US$46.60/piece.Request sample

Product profile

Customization

Available

After-sales Service

Yes

Warranty

2 Years

Model NO.

ADL400/C

Display

Digital

Installation

Direct Connected

Usage

Multi-Functional Energy Meter, Watt-Hour Meter, Meter for Industry and Home Use, Standard Electric Energy Meter, Prepayment Meter, Reactive Energy Meter, Multi-rate Watt-hour Meters, Maximum Demand Meter

Electric Equipment

Three-phase Four-wire

Theory

Electronic Meter

Power Meter Connection

Terminal

Measured Signal

Continuous Wave

Type

Energy Meter

Certification

CE, MID

Customized

Non-Customized

Accuracy Class

0.5s

Measuring Voltage

3*380V, 3*57.7/100V, 3*220/380V, 3*240V/415V

Measurement of Kwh

Positive and Negative Active Kwh, Reactive Kwh

Measurement of Electrical Parameters

U, I, P, Q, S, PF, F, a, B, C Phase Kwh, etc..

Measurement of Harmonic

2~31st Voltage and Current Harmonic

Input Current

3*1(6)a, or 3*10(80)a

Frequency

45~65Hz

Interface and Communication

RS485(Modbus-RTU)

LCD Display

8 Bits Section LCD Display, Background Light

Multi-Tariff

4 Time Zones, 14 Time Interval by Day and 4 Tariff

Recording

Frozen Data on Last 48 Months, Last 90 Days

Transport Package

Packaged in Bubble Bag and Carton

Specification

Trademark

Acrel

Origin

China

Key features

MID & CE Certified: Complies with IEC62053-21 standards and holds MID and CE certifications for reliability.

High Precision Measurement: 0.5s accuracy class measuring active/reactive kWh, harmonics, and electrical parameters.

RS485 IoT Integration: Supports Modbus-RTU protocol for seamless integration with IoT energy monitoring systems.

Multi-Tariff Function: Supports 4 time zones and 14 time intervals for precise billing and energy cost management.

Comprehensive Data Logging: Records frozen data for the last 48 months and 90 days for historical analysis.

Compact DIN Rail Design: Small size with direct connection or CT input, suitable for industrial and home use.

2-Year Warranty: Comprehensive 2-year warranty coverage for mechanical defects and performance assurance.

Harmonic Analysis: Measures 2nd to 31st voltage and current harmonics for power quality monitoring.

Company profile

Exhibition ExperienceQuality AssuranceR&D CapabilitiesManagement Certification

ACREL CO., LTD.

Shanghai, China

CertifiedBusiness Type: Manufacturer/Factory & Trading Company CertifiedR&D Capacity: ODM Service Available CertifiedCustomization Options: Customization from Samples, Customization from Designs, etc. CertifiedExport Year: 4 Years CertifiedNearest Port: Shanghai PortAverage Response Time: ≤4.70h

AI-Powered supplier vetting

SummaryThe supplier demonstrates broad electrical, power-electronics, automation, IoT, software, and related equipment business coverage. It has documented procedures for corrective and preventive actions, complaint handling, supplier-service assessment, and finished-product inspection. Its capabilities include 3D software design, ODM, SDK provision, new-product development, extensive customization, SMT/DIP production, automated sensing, debugging, and testing. Overseas support is available through agents or branches in Singapore, including installation, training, repair, maintenance, and debugging. However, the supplier has no reported in-stock capacity, overseas warehouse, overseas showroom, or valid manufacturing-capacity contract with related subcontractors. Evidence is insufficient for certification holding and customer cases.

Supplier typeThe stated business scope covers electrical signal equipment, power-electronic components, instruments and meters, software, intelligent equipment, lighting, IoT and information-security devices, charging stations, power-distribution control equipment, and industrial automation systems. Its facilities include SMT and DIP assembly lines plus automatic sensing, debugging, and testing equipment, indicating a manufacturer and technical equipment supplier rather than a purely trading-oriented entity.

After-Sales capabilityThe supplier has documented complaint-handling and corrective/preventive-action procedures with records, and overseas service capability through agents or branches in Singapore covering installation, training, repair, maintenance, and debugging. However, it reports no overseas warehouse and no overseas showroom; these are logistical limitations but do not negate the documented service functions.

R&D capabilityThe supplier provides 3D software design, ODM, SDK access, and multiple forms of customization, and reports new products during the past year. Nevertheless, it states that it has not established an AI model for big-data processing and decision-enabled management, which is a stated sustainability and digital-management gap rather than proof of insufficient product innovation.

Production capacityProduction evidence includes SMT and DIP assembly lines, automatic electricity-sensor production, and automatic debugging and testing equipment; finished-product inspection instructions are uniformly followed. Lead times are stated as within 15 workdays in both peak and off-seasons, but the supplier reports no in-stock capacity and no valid manufacturing-capacity contract with related subcontractors, limiting evidence of flexible or backup capacity.

Customization capabilityThe supplier explicitly offers customization from samples, customization from designs, full customization, minor customization, flexible customization, 3D software design, and ODM services. These combined statements provide direct evidence of broad customization and design-development capability.

Product Q&A

Q:What is the difference between direct connect and CT input?

Direct connect is for loads below 80A AC (e.g., 10(80)A model). CT input is for loads over 80A AC, using paired CTs (e.g., 1(6)A model with 5A secondary output).

Q:How to set CT or PT ratio on ADL400?

Set via keypads following the manual. For example, if using 250A/5A CTs, set the ratio to 50. If voltage is direct connected, set PT ratio to 1.

Q:Can ADL400 be used in IoT Energy Monitoring Systems?

Yes, it has standard RS485 and Modbus-RTU interface, allowing integration with IoT solutions to remotely check data on mobile phones or PCs.

Q:What is the Multi-rate/tariff function?

It measures kWh data for different time durations (spike/peak/flat/valley) to calculate electricity bills based on varying time-of-use prices.

Q:What are the accuracy classes for energy measurement?

Active energy has an accuracy class of 0.5, and reactive energy has an accuracy class of 2.