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.

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-SERIES-DIGITAL-MOTOR-PROTECTION-RELAY

PR260-Motor-Protect-Relay-User-Manual-V1.4

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» Motor Protection Relay Function – 9 Things You Must Know
» Motor Overload Protection – Development, Composition & Function
» What Is Motor Unbalance Current Protection?
» What Is Motor Ground Fault Protection
» What Is Under Voltage Protection Of Motors?
» What Is Phase Loss Protection?