Description

RGU-10C, Residual current relay

Code: P11944.

• Protocol: Modbus/RTU
• Módules: 3
• Pre-alarm relay: Yes
• Communications: RS-485
• Nº relays: 1
• IΔn (A): 0,03 … 3 A | 0,03 …30 A
• Power supply (Vac): 230 Vac
• Delay: 0,02 … 10 s, INS, SEL
• Mounting: DIN rail

 

INFORMATION

DESCRIPTION

Electronic residual current protection relay of the WG series, connected to the external transformers of the WG / WGC series. Superimmunized type relay with high frequency currents filtering and high immunity. True RMS measurement (TRMS).

•  Data shown on the display
• Features two independent programmable outputs (main and prealarm)
• External input for remote-control functions (230 Vac)

APPLICATIONS

The RGU-10 relays associated with WG transformers offer smart residual current 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.

In addition, version RGU-10 C features RS-485 communications and, with the PowerStudio software, offers centralised supervision in real time, as well as keeping a log of historical data for future analysis.

SPECIFICATIONS

AC POWER SUPPLY

Consumption

6 VA

Frequency

50/60 Hz

Nominal voltage

110 – 230 V~ (± 20 %)

MECHANICAL CHARACTERISTICS

Size (mm) width x height x depth

52.5 x 85 x 67.9 (mm)

Cable length to be stripped (mm)

7

Torque setting

0.5-0.6 Nm

Cable gauge at power supply terminals

0.5 … 2 mm2

Fastening

DIN rail

Weight (kg)

0,255

ENVIRONMENTAL CHARACTERISTICS

Protection class

IP 20 (terminals), IP 41 (front)

Relative humidity (without condensation)

5 … 95 %

Ambient temperature

-40 … +85 ºC

Working temperature

-10 … +50 ºC

COMMUNICATIONS

Stop bits (ModBus)

8

Parity

Non-pair-impar

Protocol

Modbus/RTU

Speed

9600 … 115200 Bd

Peripheral number

1 … 99

EXTERNAL RESET INPUT FOR TRIPPING

Type

Optocoupled

Maximum power

0,7 W

Maximum voltage

230 Vca ± 20%

STANDARDS

Electrical safety, Maximum height (m)

2000

Electrical safety, Installation category

CAT III 300V ca, IEC 61010

Standards

IEC 61008.1, IEC62020, IEC60947-2 Anexo M, IEC 60755

ELECTRICAL SAFETY

Insulation

Double-insulated electric shock protection class II (IEC 61010-1)

DIGITAL RELAY OUTPUTS

Nominal load in AC

2500 VA

Nominal current

6 A ~

Nominal voltage

250 V ~

Maximum current

10 A ~

Mechanical life

10 x 10⁶

DIFFERENTIAL PROTECTION

Type

Type A ultra-immunised

Sensitivity (I∆n), A

0,03 … 3 / 5-10-30 (Setup)

Transformer

External, WG/WGC series

PROTECTION

Circuit breaker type

Contactor or Circuit Breaker + trigger coil