Residual current relay, type A, with built-in transformer, ultra-immunised

Residual current relay
Residual current relay
Residual current relay
Residual current relay
Residual current relay
Residual current relay

WRU-10-HS

WRU-10-HS, Residual current relay

Code: P14036.

  • Módules: 3
  • Pre-alarm relay: Yes
  • Usefull diam.(mm): 28
  • Nº relays: 1
  • IΔn (A): 0,01 … 0,5 A
  • Power supply (Vac): 230 Vac
  • Delay: 0,02 … 10 s, INS, SEL
  • Nr. reclosures: 30
  • Mounting: DIN rail

INFORMATION

Description

Electronic residual current protection relay with built-in 28 mm transformer, forming a single unit. Super-immunised type-A, with high-frequency current filtering and high immunity. True root mean square (TRMS) measurement.

  • Display with LEDs and display:
    • Residual current protection parameters.
    • Protection trip current.
    • Protection status messages, etc.
  • Unit with three programmable contact output relays, one switched and two single. The main relay is for the protection associated with the contact or trigger relay of the circuit breaker while the two others are for the prealarm.
  • It also has a voltage-free input for external tripping and rearming.
  • Assembly on DIN 46277 rail (EN 50022), 3 modules.
  • Connection by pluggable terminal strips.

Applications

WRU-10 relays enable smart differential protection. Their design features guarantee maximum security and electrical service continuity, avoiding unwanted tripping.

Viewing the instantaneous leakage value on the display, together with the prealarm indicators, makes it possible to obtain information on the status of lines to be protected, and to perform adequate preventive maintenance.

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SPECIFICATIONS

AC power supply
Nominal voltage
230 V ~ ±30 %
Frequency
50/60 Hz
Consumption
4,5 VA
Installation category
CAT III 300 V
External reset input for tripping
Type
Voltage free, not insulated
Varistor characteristics
Maximum voltage
420 V~ , 10 A ~
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
User interface
Display type
LCD
LED
2 LED
Keyboard
7 keys
Environmental characteristics
Working temperature
-20 … +70 ºC
Storage temperature
-25 … +75 ºC
Relative humidity (without condensation)
5 … 95 %
Protection class
IP 41 (Front) / IP 20 (sides and back cover)
Mechanical characteristics
Envelope
Plastic V0 polycarbonate
Fastening
DIN rail (with accessory)
Weight (kg)
0,1
Size (mm) width x height x depth
52.5 x 109.4 x 75 (mm)
Protection
LED indication
Power supply voltage Earth leakage tripping Pre-alarm latching
Measure
True root mean square (TRMS)
Differential protection
Type
Type A ultra-immunised
Sensitivity (I∆n), A
0,01-0,02-0,03-0,1-0,3-0,5 por ajuste directo
Delay time (t∆)
INS / SEL / Direct setting: 0.02 ... 1 s
Standards
Standards
IEC 60947-2, IEC 60755, IEC 62020
Certifications
CE, CMim
Electrical safety, Maximum height (m)
2000
Electrical safety
Insulation
Double-insulated electric shock protection class II

DIMENSIONS

CONNECTIONS

VIDEOS

DOWNLOADS

User's manual
3D
Dimensions
Diagram connection
Datasheet
CE-certified
Other Certificates
Catalogue
Leaflet

ACCESORIES

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