Pr240 Motor Protector Relay AC380V Three Phase Overload Thermistor Motor Protection Relay with RS485 Communication

• Theory: Voltage Relay
• Usage: Motor Relay
• Phase: 3
• Electricity Type: Ac
• Number of Pole: 4
• Load: Micro Power Relay
• Model NO.: PR240
• Protective Characteristics: Open Relay
• Action Principle: Numeric Type
• Size: 96*48mm
• Type: Electric Parameter Relay
• Protect Feature: Automatic Trig
• Contact Load: 5A*220V
• Transport Package: Please Consult with Us for More Detail Information
• Specification: 10*10*10
• Trademark: BlueJay
• Origin: Jiangsu, China
• Production Capacity: 10000 Piece/Pieces Per Day

Product Description

 

PR 240 electronic motor protection relay is an excellent choice for telemetry applications to monitor, meter, and control the Motor. Its small size, low cost, and remote HMI options make the relay a perfect option for power distribution systems to be used in end-of-line monitoring and power metering.

 

PR240 motor temperature protection relay offers low-voltage motor protection in almost all applications, including pumping, air-based, chiller, and bulk-material applications. The motor thermal relay can be configured as a full range of medium-voltage, three-phase induction, and synchronous motors protect relay.

 

 

Feature

* Panel mounting HMI unit and Din-rail mounting control unit
* Suitable for Motor under 0.66KV and any current range
* HMI unit provides 3-phase current voltage monitors, Power Measurement
* Control unit builds in 200A CT, out of range 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
* RS-485 network communications
* 4 digital outputs, and 7 digital inputs
* Optional 1 programmable analog output

 

Specification

 

Protection Function	Start timeout, overload, overcurrent stall, phase failure, current unbalance, short circuit, underload, temperature, restart, overflow fault (fault current contactor breaking capacity) tripped circuit breaker
Optional protection function	Ground leakage, overvoltage, Undervoltage, frequency, underpower factor, TE protection, anti-shock
Connection method	Extention type
Programmable operating modes	Protection mode, direct start mode, two-way reversible start mode, two-relay mode, two-speed click start mode, circuit breaker direct start mode
Communication interface	1 RS485 interface, communication protocol Modbus-RTU; optional 2 RS485 interfaces, optional Profibus-DP interface
Switch input	10 DI
Relay output	5-way DO
Optional Analog input	1-2 channels DC 4-20mA analog output, programmable parameters
Measurement display	three-phase current, ground leakage current, three-phase current unbalance rate, heat capacity, thermal resistance, three-line voltage, frequency, power factor, active power, reactive power
Fault record	a maximum record of 99 words of recent fault information, resolution IS
Statistical information	record the total running time, total parking time, number of stops, and number of trips of the motor
Under-voltage and voltage-loss restart	realize short-term under-voltage and voltage-loss restart functions

 

The working environment of PR 240 Intelligent Motor Management Relay

Motor-rated voltage:	AC380V / AC660V
Motor rated current:	0.5-820A
Working temperature:	-10C ~ +55C
Storage temperature:	-25C ~ +70C
Relative humidity:	< 93% RH
Elevation:	not more than 3000 m
Atmospheric conditions:	installation site does not allow the explosive medium, containing gas to corrode metal and damage the insulation and conductive medium.

Measuring the accuracy of PR 240

Current:	± 0.5% @ 10% to 200% of Ie
Voltage:	± 0.5% @ 10%~150%Ue
Frequency:	± 0.1% @ 45 ~ 65Hz
Power factor:	± 1.0% @ 0 ~ 1.000
Active Power	± 1.0% @ 0 ~ 500kW
Leakage current:	± 1% @10% to 100% of Ir
Analog Output:	± 1% @4 ~ 20mA

Electrical parameters of PR 240 Motor Protector

Auxiliary Power:	AC90-240Vac/dc
Power consumption:	<10 VA
Insulation resistance:	> 100MΩ
Relay:	Alarm relay @ 5A / 250VAC, 5A / 30VDC (NO node)

Electrical test of PR 240 Motor Protection Relay:

IEC 61000-4-2	level III
IEC 61000-4-4	level III
IEC 61000-4-5	level III
IEC 61010-1	AC2kV/1min Between power/input / output

Dimension of motor protection relay

 

CT accessories for motor protection relay

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