What are the standard input/output configurations?

The standard configuration includes 10 digital inputs (DI) and 6 digital outputs (DO), with optional 4-20mA outputs.

What is the minimum order quantity?

The minimum order quantity is 1 PC.

Motor Overcurrent Protection Relay

Name: Motor Overcurrent Protection Relay
Brand: Jiangsu Acrel Electrical Manufacturing Co., Ltd.
SKU: 1994042075

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 Motor Protection: Protects against overload, short circuit, stall, unbalance, and phase failure for safe operation.

Multi-Protocol Communication: Supports Modbus-RTU, Profibus-DP, Profinet, Modbus-TCP, and optional WIFI for flexible networking.

Advanced Measurement Functions: Measures voltage, current, power, harmonics, and temperature with optional waveform recording.

Wide Current Range: Supports rated currents from 0.1A to 5000A with various transformer ratios for different motor sizes.

Programmable Logic Control: Features logic programmable function to meet diverse control methods and automation needs.

Flexible Customization Options: Offers full customization, minor customization, and flexible options from samples or designs.

Robust Communication Ports: Standard 2-channel Modbus-RTU with optional Profibus, Profinet, and Ethernet communication modules.

High Reliability Standards: Complies with GB 14048.4-2020 and JBT 10736-2007 standards for low-voltage motor protection.

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: ≤3.01h

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 is the rated voltage range for this motor protector?

It supports low-voltage motor circuits with a rated voltage up to 660V, including AC220V, 380V, and 660V at 50Hz/60Hz.

Q:What communication protocols are supported?

Standard support includes 2 channels of Modbus-RTU. Optional protocols include Profibus-DP, Profinet, Modbus-TCP, and WIFI.

Q:What protection functions does the ARD3M offer?

It provides protection against over/under load, short circuit, stall, block, current/voltage unbalance, phase failure, over/under voltage, and temperature issues.

Q:What is the maximum rated current supported?

The device supports a rated current range from 0.1A to 5000A, depending on the selected transformer ratio.

Q:Can the device be customized?

Yes, full customization, minor customization, and flexible customization options are available from samples or designs.