Is there an option for harmonic analysis?

Yes, an optional additional function (Code H) provides 2-63rd harmonic voltage and current measurement capabilities.

What is the minimum order quantity (MOQ)?

The minimum order quantity is 1 PC.

Motor Overload Protection Relay Devices

Name: Motor Overload Protection Relay Devices
Brand: Jiangsu Acrel Electrical Manufacturing Co., Ltd.
SKU: 1997183725

Jiangsu, ChinaJiangsu Acrel Electrical Manufacturing Co., Ltd.

US$215.40-646.20

1 Piece

Sample price:US$215.40/piece.Request sample

Product profile

Customization

Available

Theory

Electromagnetic Relay

Usage

Motor Relay

Model NO.

ARD3M

Phase

Electricity Type

Load

Medium Power Relay

Protective Characteristics

Open Relay

Action Principle

Numeric Type

Size

Miniature

Type

Electric Parameter Relay

Rated Voltage

660V

Rated Current

800A

Protocol

Modbus-RTU, Profibus-Dp, Profinet, Modbus-TCP, Wif

Measure

Voltage, Current, Power, Harmonic, Temperature

Protect

Over&Under Load and Voltage&Power, Short Circuit

Standard Configuration

10di/6do, 2 Modbus-RTU

Transport Package

Carton

Specification

ARD3M

Trademark

Acrel

Origin

China

HS Code

8536300000

Production Capacity

200000

Key features

Comprehensive Protection: Covers overload, short circuit, phase loss, voltage imbalance, and temperature faults for safe motor operation.

Multi-Protocol Communication: Supports Modbus-RTU, Profibus-DP, Profinet, Modbus-TCP, and optional WiFi for flexible field integration.

Precise Measurement: Measures voltage, current, power, harmonics, and temperature with optional waveform and fault recording.

Logic Programmable: Features 10DI/6DO inputs/outputs with logic programming capabilities for diverse control methods.

Wide Current Range: Supports rated currents from 0.1A to 800A with multiple transformer ratios for various motor sizes.

Compliant Standards: Meets GB 14048.4-2020 and JBT 10736-2007 standards for low-voltage motor protection reliability.

Flexible Customization: Offers full customization from samples or designs, including specific voltage and communication options.

Advanced Display Options: Available with LED, monochrome LCD, or optional color dot matrix LCD for clear status monitoring.

Company profile

Importers and ExportersHigh Repeat Buyers ChoiceExperienced Team

Jiangsu Acrel Electrical Manufacturing Co., Ltd.

Jiangsu, China

CertifiedBusiness Type: Manufacturer/Factory & Trading Company CertifiedR&D Capacity: ODM Service Available & OEM Service Available CertifiedCustomization Options: Customization from Samples, Customization from Designs, etc. CertifiedExport Year: 8 Years CertifiedNearest Port: Shanghai PortAverage Response Time: ≤2.83h

AI-Powered supplier vetting

SummaryThe supplier demonstrates broad customization and R&D capabilities, including ODM, OEM, SDK availability, multiple design tools, and documented design review, verification, and validation records. Production-related evidence includes SMT, assembly, and automated processing lines, inventory capacity, contracts with associated subcontractors, and standardized finished-product inspection instructions. Service management is supported by written procedures and records for corrective actions, complaints, supplier assessment, and quality assurance. The supplier has overseas agents or branches, export rights, and prior participation in MEE Middle East Energy, but reports no overseas warehouse or showroom and lists zero countries offering overseas services. Financial credibility cannot be assessed because only years are provided, without non-financial supporting results. No explicit certification holdings or customer case details are provided.

Supplier typeThe supplier operates or coordinates SMT, assembly, and automated processing facilities, maintains inventory capability, and has valid manufacturing contracts with associated subcontractors. It also holds self-operated import/export rights and has overseas agents or branches, indicating a manufacturing-oriented supplier with international service arrangements.

After-Sales capabilityThe supplier has documented and followed procedures for corrective and preventive actions, customer complaints, service-capability assessment, and quality assurance. Overseas agents or branches and prior participation in an offline trade show support service reach, while the absence of overseas warehouses and showrooms limits the evidence for localized after-sales infrastructure.

R&D capabilityThe supplier reports new products during the past year, ODM services, SDK availability, R&D responsibilities covering new-product development and production technology support, and use of AutoCAD, Pro/E, and SolidWorks. It also maintains auditable design input, output, review, verification, and validation documentation, supporting a demonstrated product-development process.

Production capacityProduction evidence includes SMT, assembly, and automated processing lines, standardized finished-product inspection instructions, inventory capability, valid contracts with associated subcontractors, and lead times within 15 workdays in both peak and off-seasons. These stated capabilities support a positive assessment of manufacturing and delivery readiness.

Customization capabilityThe supplier explicitly provides customization from samples, customization from designs, full customization, minor customization, and flexible customization. The same broad range is reported across R&D and design-service capability records, indicating substantial customization coverage.

Product Q&A

Q:What protection functions does the ARD3M provide?

It provides comprehensive protection including overload, under-load, short circuit, stall, block, current/voltage imbalance, phase loss, over/under voltage, over/under power, and temperature monitoring.

Q:Which communication protocols are supported?

Standard support includes 2 channels of Modbus-RTU. Optional protocols include Profibus-DP, Profinet, Modbus-TCP (Ethernet), and WiFi.

Q:What is the rated current range for this protector?

The rated current ranges from 0.1A to 800A, with specific specifications for 1A, 5A, 25A, 100A, 250A, and 800A to match different motor powers.

Q:Can the device be customized?

Yes, full customization is available from samples or designs, including minor and flexible customization options for voltage, current, and communication modules.

Q:What are the input and output channel configurations?

The standard configuration includes 10 Digital Inputs (DI) and 6 Digital Outputs (DO). DI can be dry or wet contacts, and DO supports AC220V external power.