Technology of Electrical Automatic

PR 260 Motor Protection Relay

PR 260 Motor Protection Relay

The PR 260 Motor Protection Relay is a versatile device that can be customized with additional I/O modules. It offers 22 protective functions and can monitor voltage, current, and temperature. This digital motor protection relay provides protection, control, metering, and data-logging for motors through integrated features.

The PR 260 Motor Protection Relay is a versatile device that can be customized with additional I/O modules. It offers 22 protective functions and can monitor voltage, current, and temperature. This digital motor protection relay provides protection, control, metering, and data-logging for motors through integrated features.

PR 260 Motor Protection Relay Features

  • HMI unit mounts on panel, control module mounts on Din-rail
  • Suitable for motors under 0.66KV and any current range
  • HMI unit monitors 3-phase current voltage and power measurement
  • A control unit uses a CT connection with max 5A input
  • Various protection modes available for alarm or trip
  • Multiple startup modes for different wiring applications
  • Waveform capture function for easy fault tracing
  • RS-485 network communication is available.
  • 4 digital outputs, and 7 digital inputs
  • Optional 2 programmable analog outputs

Specifications

The working environment of PR 260 Motor Protection 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 260 Motor Protection Relay:

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 260 Motor Protection Relay:

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 260 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

Selectable Models

Products code
IEEE
/ ANSI
C37.2

 

PR201 PR202 PR203 PR240 PR260 PR265 PR26C
PROTECTION FUNCTION
Max. Start Time 48
Overload 49, 51
Increased safety motors overload 51
Over
Current – Jam in starting
51R
Over Current – Jam in running 51R
Phase loss 47
Current imbalance 46
Over voltage 59
Undervoltage 27
Under Power 32L
Ground fault 50G/N,
51G/N
Over Current – Short 50
Over temperature 38
Abnormal frequency 81U/81O
Lead/ Lag PF / Low Power Factor 55
Welded Contactor 74
External fault 86
or 94
Internal failure 3
Restart

Accesseries selection table

Accesseries selection table of PR 260 Motor Protection Relay Accesseries selection of pr 260 motor protection relay

Downloads

Brochure of PR motor protection relay

PR260 Motor Protect Relay User Manual V1.4