Residual current relay with built-in transformer

WRU-10K-0,03-3A

WRU-10K-0,03-3A, Self-reclosing relay

Code: P23261.

  • Usefull diam.(mm): 28
  • IΔn (A): 0,03 … 3 A
  • Delay: 0,02 … 1 s
  • Nr. reclosures: 30
  • Time betwen reclosures: 20 s, 40 s then every 5 min
  • Breaking element: MCB

INFORMATION

Description

Electronic residual current protection relay for self-reclosing, with Ø28 mm built-in toroidal transformer, forming a single unit. Type A relay (IEC 60755) ultra-immunized. True root mean square measure (TRMS).

Display with LED and backlit (LCD) display:

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

Device with three output relays, one for indicating locking status and the other two for the trip and subsequent reset of the circuit breaker (MCB-P). It is only used with the MCB-P, with it not being possible to associate it with others. It has voltage-free input for remote control trip/reset operations.

Applications

The WRU-10K relays connected to the MCB-P guarantee self-reclosing residual current and circuit breaker protection after an residual current trip. It is a good solution for those infrastructures that are hard to control and monitor because of their location.

Control boards for:

  • Telephony systems
  • DTT systems
  • Computer systems, UPS

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 / ON-OFF Remote
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)
5 … 95 %
Protection class
IP 20
Mechanical characteristics
Fastening
DIN 46277 (EN 50022)
Weight (kg)
0,172
Size (mm) width x height x depth
52.5 x 109.4 x 75 (mm)
Protection
LED indication
Voltage presence Earth leakage tripping Reclosure timing
Measure
True root mean square (TRMS)
Differential protection
Type
Type A ultra-immunised
Sensitivity (I∆n), A
0,03 … 3
Delay time (t∆)
0,02 … 1 s
Reclosure type
Reset time
Differential: 15 min
Reclosure time
Differential: 20 s, 40 s, and rest every 5 min
Reclosure number
Differential: 30
Thermal-magnetic protection
Breaking capacity
10 kA (IEC 60898) MCB-P
Nominal voltage
230 / 400 V ~
Trip curve, Type
C
Standards
Standards
IEC 60947-2, IEC 60755, IEC 62020
Electrical safety, Maximum height (m)
2000

DIMENSIONS

CONNECTIONS

VIDEOS

DOWNLOADS

User's manual
3D
Dimensions
Diagram connection
Datasheet

ACCESORIES