Residual current relay with built-in transformer

Self-reclosing relay
Self-reclosing relay
Self-reclosing relay
Self-reclosing relay

WRU-10-MT

WRU-10-MT, Residual current relay

Code: P24275.

  • Usefull diam.(mm): 28
  • IΔn (A): 0,03 … 3 A | 0,03 … 30 A
  • Delay: 0,02...10 s, INS, SEL
  • Nr. reclosures: Programmable
  • Time betwen reclosures: Programmable
  • Breaking element: RECmaxMP | MT-FDE

INFORMATION

Description

Electronic residual current protection relay with self-reclosing system, with built-in 28 mm transformer, forming a single unit. Super-immunised type-A relay with high-frequency current filtering and high immunity. True root mean square (TRMS) measure. Display with LEDs and backlit display:

  • Residual current reclosing / protection parameters
  • Protection trip current.
  • Number of reclosures
  • Protection status messages, etc.

 Device with three changeover contact output relays and two simple relays (all relays can be programmed). The main relay provides the protection associated with the contactor, one is for the prealarm and the other one is for interlocking once the maximum number of reclosures has been reached. It also has a voltage-free input for external tripping and rearming.

  • Assembly on DIN 46277 rail (EN-50022)
  • Compact size: 3 modules
  • Connection by pluggable terminal strips

Applications

WRU-10 MT relays associated with a motorized circuit breaker allow automatic reclosing after tripping, thus offering the most adequate solution for street lights, ATMs, refrigerating chambers, traffic lights, etc. Their design features guarantee maximum security and electrical service continuity, avoiding unwanted tripping.

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SPECIFICATIONS

AC power supply
Nominal voltage
230 V ~ ±30 %
Frequency
50/60 Hz
Consumption
4,5 VA
External reset input for tripping
Type
Voltage free, not insulated
Digital relay outputs
Nominal voltage
230 V ~
Nominal current
0,25 A ~
Nominal load
62,5 VA
Other digital relay outputs
Nominal voltage
250 V ~
Nominal current
5 A ~
Nominal load
1250 VA
Environmental characteristics
Working temperature
-20 … +70 ºC
Relative humidity (without condensation)
95%
Protection class
IP 20
Mechanical characteristics
Fastening
DIN 46277 (EN 50022)
Weight (kg)
0,17
Size (mm) width x height x depth
52.5 x 109.4 x 75 (mm)
Protection
LED indication
Power supply voltage Earth leakage tripping Prealarm Latching
Measure
True root mean square (TRMS)
Differential protection
Type
Type A ultra-immunised
Sensitivity (I∆n), A
0,03 … 3 / 5-10-30 (Setup)
Delay time (t∆)
Direct setting: 0.02 ... 1 s Programmable: 3-5-10 s Inverse curve: Instantaneous or selective
Reclosure type
Reset time
Programmable
Reclosure time
Programmable
Reclosure number
Programmable
Standards
Standards
IEC 60947-2-M, IEC 60755, IEC 62020
Electrical safety, Maximum height (m)
2000

DIMENSIONS

CONNECTIONS

VIDEOS

DOWNLOADS

User's manual
3D
Dimensions
Diagram connection
Datasheet
Product video
Other Certificates

ACCESORIES

TAMBIÉN TE PUEDE INTERESAR

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Central protection and residual current reclosing with WGC external transformer