Central protection and residual current reclosing with WGC external transformer

CBS-4C-RA

CBS-4C-RA, Central residual current protection

Code: P24912.

  • Communications: RS-485
  • Nº relays: 4
  • IΔn (A): 0,03 … 30 A
  • Delay: 0,02...10 s, INS, SEL
  • Nr. reclosures: Programmable
  • Breaking element: Contactor
  • Type of protection: Type A

INFORMATION

Description

Unit equivalent to 4 residual current protection relays. 4 independent programmable relays available

4 inputs to connect the external toroidal transformers of the WG / WGS / WGC

Self-reclosing with programmable residual current trip in each channel

Superimmunized Type A relay with high frequency current filtering and high immunity. Monitoring in true root mean square (TRMS)

Reduced size: 3 modules

5 independent programmable outputs:

    • 4 residual current trip outputs
    • 1 end-of-reclosing-sequence interlocking output

Backlight display to show the information of the 4 channels:

    • Adjustment values
    • Instantaneous leakage current

Trip/external reset input

Automatic test of the connection and status of each external transformer

Optional RS-485 Communications: type CBS-4C RA and CBS-4C RAL

Assembly on DIN rail 46277 (EN-50022)

Optional assembly on 72 x 72 panel with accessory M5ZZF1.

Applications

CBS-4 RA or CBS-4 RAL allow an intelligent residual current protection, with greatly reduced dimensions. A contactor is available per channel, enabling the automatic reclosure after a trip, thus offering the most adequate solution for public lighting, cash machines, refrigeration chambers, traffic lights, etc. In addition, version CBS-4 C, with RS-485 communications, is used with the Power Studio software and it adds the centralised supervision in real-time, as well as a record log that can be analysed later on.

SPECIFICATIONS

AC power supply
Nominal voltage
230 V~ (± 20 %)
Consumption
6 VA
Frequency
50/60 Hz
Mechanical characteristics
Size (mm) width x height x depth
52.5 x 85 x 67.9 (mm)
Envelope
Polycarbonate V0
Cable length to be stripped (mm)
7
Torque setting
0,5 … 0,6 Nm
Cable gauge at power supply terminals
0,127 - 2,082 mm2
Fastening
DIN (IEC 60715)
Weight (kg)
0,28
Environmental characteristics
Protection class
IP 41 (front), IP 20 (side and rear cover)
Relative humidity (without condensation)
5 … 95 %
Storage temperature
-20 … +55 ºC
Working temperature
-10 … +50 ºC
Varistor characteristics
Maximum voltage
275 V~
Communications
Stop bits (ModBus)
1
Parity
without, even, odd
Protocol
Modbus/RTU
Speed
2400 … 115200 bps
Peripheral number
1 … 99
External reset input for tripping
Type
Optocoupled
Maximum power
0,7 W
Maximum voltage
230 V~ ±20 %
User interface
LED
2
Keyboard
7 keys
Display type
LCD
Digital relay outputs
Nominal load in AC1
1500 VA
Nominal current
6 A ~
Nominal voltage
230 V ~
Maximum current
10 A ~
Differential protection
Sensitivity (I∆n), A
0,03 … 30
Delay time (t∆)
Programmable: 0.02 ... 10s Inverse curve: Instantaneous or selective
Transformer
External, WG (WG/WGS/WGC) series
Type
Type A ultra-immunised
Protection
Measure
True root mean square (TRMS)
Circuit breaker type
Contactor
Standards
Standards
IEC 60947-2-M, IEC 62020, IEC 61008-1
Electrical safety, Maximum height (m)
2000

DIMENSIONS

CONNECTIONS

VIDEOS

DOWNLOADS

Technical guide
3D
Diagram connection
Datasheet
CE-certified

ACCESORIES