Industrial Electric Digital Overcurrent Overvoltage Phase Failure Thermal Overload 3 Phase Motor Protection Relay

• Customization: Available
• Theory: Electromagnetic Relay
• Usage: Household Appliances Relay, Communication Relay, Lathe Relay
• Model NO.: PR260
• Phase: 3
• Electricity Type: Ac
• Number of Pole: 2
• Load: Medium Power Relay
• Protective Characteristics: Open Relay
• Action Principle: Electronic Type
• Size: Miniature
• Type: Electric Parameter Relay
• Motor Range: Under 0.66kv
• Measure: Voltage, Current, Power, Harmonic, Temperature
• Protect: Over&Under Load and Voltage&Power, Short Circuit
• Protocol: Modbus-RTU, Profibus-Dp, Profinet, Modbus-TCP, Wif
• Function: Automatic Control, Protection, Monitoring, Measure
• Transport Package: Carton
• Specification: 10*10cm
• Trademark: Blue Jay
• Origin: China
• Production Capacity: 1000PCS Per Month
• Package Size: 10.00cm * 10.00cm * 10.00cm
• Package Gross Weight: 0.650kg

Product Description

PR 260 electronic motor protection relay is a motor management device with a modular design that accommodates many I/O modules. The product can flexibly arrange motor control modes and state sensing. In addition, PR260 monitors voltage, current, and temperature and provides a comprehensive package of 22 protective functions. The over-current relay has some functions, including integrated protection, motor control, metering, and data logging.

This electronic overload relay is typically used to protect three-phase low-and medium voltage, medium to high-horsepower induction motors. The PR260 motor protection controller adopts a modular design with a small footprint, allowing for a spliced combination of functional modules and offering a flexible structure, suitable for standard rail installation with an external high current transformer and adaptable to various applications. It consists of the following components:

Main control module (mandatory): The core component responsible for overall control and protection.
Measurement module (mandatory): This module measures key parameters such as current, voltage, and power. It also includes connecting cables for integration with the motor. With the built-in residual current transformer in the measurement module, the PR260 electric motor protective relay can be easily installed without additional wiring.

Switching module (optional): This module provides additional switching capabilities for specific applications.

Display module (optional): This display module (HMI) utilizes a dot matrix LCD and highlighted indicator lights to clearly show operating status and data. It offers a visual interface for monitoring the motor's status and parameters. With the connecting cables, it can easily be connected to the main control module.

Feature

 

Overview:

* Panel mounting HMI unit and Din-rail mounting control module

* Suitable for Motor under 0.66KV and any current range

* HMI unit provide 3-phase current voltage monitors, Power Measurement

* Control unit use .../5A CT connect

* Abundant protection modes can be freely selected to alarm or trip

* Can select a variety of startup modes for different wiring application

* 100 lists Waveform capture function, easy to trace back the fault

* RS-485 network communications

* 4 digital outputs, and 7 digital inputs

* Optional 2 programmable analog output

* Extra optional Modular:
PR-26C extra 2* RS485 or 2* Profibus-DP port;
PR-265 extra programmable 11*DI and 6*DO.

Full-featured Motor Protection
Our economical & reliable Multifunction motor protection relay has up to 21 motor protection functions, including current imbalance, over current, under current, current leakage, overcurrent stall, Phase unbalance, Reverse Phase, phase failure, ground fault, short circuit, overload, under load, start overtime, jam in starting, under power, external failure, over temperature, over-voltage, under voltage, abnormal frequency, abnormal power factor, restart, tE protection, overflow failure, Lock or Stall, etc. Moreover, Moreover, each motor protection function is capable of realizing shutdown, alarm, or tripping.

 

High Accuracy Metering and Monitoring Functionality
The PR260 electric motor protection relay offers high-accuracy metering and monitoring for power (active power, reactive power, apparent power), voltage (phase voltage, sequence voltage, line voltage, etc), current (over current, under current, phase current, sequence current, lock current, ground current), Earth Fault, frequency, energy, and Power Factor, etc. The relay for motors stores the latest 100 event records for measuring data.

 

Flexible & Multiple Communications
The PR260 electric motor protection relay offers various communication options like Two Wire RS485, Profibus, and Ethernet ports. Thus, it supports a wide range of industry-standard protocols, including Modbus RTU, Modbus TCP, IEC61850, Profibus, and EtherNet/IP. In summary, equipped with communication modular and I/O modular, PR260 is a versatile motor protection relay that offers robust networking capabilities, supports multiple protocols, and can be easily integrated into various industrial automation systems.

 

Specification

Electrical parameters

 

Power supply:	85-265V AC/DC
Power consumption:	<10 VA
Insulation resistance:	> 100MΩ
Alarm relay	5A @ 250VAC, or 5A @ 30VDC (NO contact)

Measuring accuracy

Current:	± 0.5% @ 10%~200% of Ie
Voltage:	± 0.5% @ 10%~150%Ue
Frequency:	± 0.1% @ 45~65Hz
Power factor:	± 1.0% @ 0~1.000
Power:	± 1.0% @ 0~500kW
Leakage current:	± 1% @10%~100% of Ir
Thermal resistance:	± 1% @0.1K~30K

Working environment

Motor rated voltage:	AC380V / AC660V
Motor rated current:	0.5-820A
Working temperature:	-10C ~ +55°C
Storage temperature:	-25C ~ +70°C
Relative humidity:	< 93% RH
Altitude:	No more than 3000 m
Atmospheric conditions:	The operating place must not have an explosive medium and contain Gases that corrode metals and damage insulating and conductive medium.

 

Electrical test

Electrostatic discharge:	IEC 61000-4-2, Level III
Electrical fast transient burst:	IEC 61000-4-4, Level III
Surge shock:	IEC 61000-4-5 , Level III
Withstanding voltage:	IEC 61010-1, AC2kV/1min Between power / input / output

Product standards

GB / T 14048.1 (IEC 60947-1)	Low-voltage switchgear and  control equipment General Provisions
GB / T 14048.4 (IEC 60947-4)	Low-voltage electromechanical contactors and motor starters requirements
JB / T 10613-2006	General specification for digital motor combined protection equipment
JB / T 10736-2007	Low-voltage motor protection

 

Application

From an industry view, the PR260 motor protection controller is a pre-configured solution for industrial and utility applications such as water management & sewage, material handling, oil &gas, mining, automotive, telecom, machinery, other industrial automation sites, etc. In terms of specific applications, it is mainly used for low voltage three-phase electric asynchronous (induction), synchronous motors, IEC or NEMA class motors, and AC Motors. The motor is usually used in motor-independent control boxes or MCC (motor control center) control cabinets, Fans, Pumps (water pumps, well recovery pumps), compressors, cranes, air conditioners, and refrigerators so all these applications need to protect motors from failure. PR260 can be your advanced automation motor protection and control solution.

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