Solutions for
earth leakage protection
and circuit breakers with
automatic reclosing system
Technology for energy efficiency
How to enhance electrical
quality and continuity for your
infrastructures or services by
ensuring electrical protection
Nowadays, our industrial production processes
and the myriad of services for individuals normally
entail a constant demand for electrical energy.
Electrical service continuity ensures high
energy management efficiency in our
companies and quality of life for individuals in
their homes or places of entertainment.
When dealing with electrical protection, one
of the most frequently used solutions for
protection devices is to cut off the electric
supply from affected areas when an insulation
fault is detected. Therefore, we are faced with
a critical electric supply continuity point,
given that services and production processes
are interrupted to protect people against
electrocution, or property against fire hazards
or other damage.
Clearly, this is the correct decision. Safety
comes first, even though we cannot leave
our installations without electric service
indefinitely, especially infrastructures,
production processes or services with low or
zero maintenance.
These types of applications make it necessary
to use intelligent automatic reclosing protection
devices. This implies devices that guarantee
protection that activated only when the problem
is real, and that have the capacity to reestablish the electric supply under the reclosing
conditions required by the application, which
can be activated or programmed according to
our criteria.
A New Generation
Protection systems with automatic reclosing systems
Optimisation of sizes
and currents and,
therefore, of the
installation's costs
Operates perfectly
with maximum currents,
and adapts to the
ranges of the
earth leakage
transformer
Programmable
intelligent protection,
display for viewing
leakage current
Earth leakage relays
Ultra-immunized
against unwanted
tripping
Communications
Modbus/RS-485
Preventive
maintenance
prealarm relay
Personalised
features for the
automatic reclosing
system, methods
and time sequences
External indicator of
the protection and
reclosing systems status
CIRCUTOR offers a wide range of solutions to
cater for different types of applications
Protection
Reclosing system
Earth leakage
Earth leakage
RCCB reclosing system (I n ≤ 63 A)
Programmable earth leakage relay
with integrated toroidal + contactor
Programmable earth leakage relay +
differential transformer + contactor
Programmable earth leakage relay +
integrated toroidal +
rearmable circuit breaker (I n ≤ 80 A)
Earth leakage and circuit breaker
Earth leakage / circuit breaker *
Earth leakage relay +
earth leakage transformer + rearmable
circuit breaker
Programmable earth leakage relay +
earth leakage transformer +
rearmable circuit breaker
Circuit breaker
Circuit breaker
Automatic rearmable circuit breaker
(I n ≤ 63 A)
Programmable relay
+ rearmable circuit breaker
*The different programmable earth leakage relays allows to disable the reclosing system with a circuit breaker
Comparison table.
Protections with reclosing systems
Design of models with special
features depending on especific
needs, for example: preventive
maintenance, control and
telemanagement of electrical
installations.
A complete range of products for earth leakage protection and installation circuit
breakers, capable of covering the needs of each installation.
Protection
Earth leakage
Earth Leakage and/or Circuit breaker
Circuit breaker
Reclosing system
Earth leakage
Earth Leakage and/or Circuit breaker
Circuit breaker
Associated circuit
breaker for protection
purposes
Switch
Earth leakage
Contactor
Motorized circuit breaker MT / REC Max MP / MT-FDE
Classification of models based
on need, installation and
features of the model.
REC 2 / C
RGU-10 / C RAL
WRU-10 RAL
CBS4 / C RA /
CBS4 / C RAL
RGU-10 / C MT
WRU-10 MT
WRGU-10MTT
RRM
REC MAX P
█
█
█
█
█
█
█
█
█
Only REC2C
█
█
█
█
█
█
█
█
█
Customer need
Continuity of service
Status outputs
Control, telemanagement,
telecontrol
█
█
█
█
█
█
LCD Display
█
█
█
█
█
█
RS-485 communications
█
█
█
█
Installation
Single-phase









Three-phase (4 wires)









Three-phase







Used with external earth
leakage
transformers WGC



28 Ø
35 Ø
Built-in earth leakage transf
28 Ø
≤63 A
Any,
Acc. to transf.
≤80 A
Any,
Acc. to transf.
Any,
Acc. to transf.
≤80 A
≤63 A
Any,
Acc. to transf.
≤63 A
Attached to DIN rail






Box


Size in DIN modules
5/7
3
3
3
3
3
1
4.6 / 7.6
TYPE A
(IAW standard)













Use as selective protection






System configurable
in time and current






Nominal current
Protection features
Type A earth leakage protection
(ultra-immunized)
Used for
instantaneous protection
t
A
Pre-alarm output
Standard

IEC 61008-1


IEC 60947-2 Annex M, IEC 62020
IEC 60898
Reclosing system features
Number of reclosing, N
3
6
Time between reclosings, T
10, 20, 30, 60, 120
and 600 s
Energy meter
reclosing reset time
300 s
Programmable
N T
3 minutes
30 minutes
Earth leakage protection with automatic reclosing system
2/4 poles range, up to 63 A
RCCB self-reclosing
REC2 / REC2C - 2 poles
n
x5
40 A
63 A
IΔn
30 mA
300 mA
Key
TEST
Opt.
output
REC2 is a 2 or 4-pole RCCB associated to a compact motor and control set that enables the automatic and safe reclosing of the installation, provided that the leakage is not
permanent.
The RCCB is reclosed automatically, in accordance with the
work mode selected:
yyTime sequence mode: After a switch trips, REC2 will
make 6 reclosing attempts, with a timer set at 10, 20, 30,
60, 120 and 600 s. If the group can not be reclosed, it
will be locked in a trip status until it is reset manually.
yyInsulation monitoring mode (30 mA): After the
switch trips, REC2 repeats the previous sequence,
but it measures the presence of leakage current
in the installation before rearming the system.
Applications
yyDomestic
yySupermarkets
yyShops
yyRefrigerating chambers
yyIndustry
yyGreenhouses
REC2 / REC2C - 4 poles
x7
ln
40 A
63 A
IΔn
30 mA
300 mA
Key
TEST
Opt.
output
LEDs are found on the front panel of the control module,
they indicate the operational status:
yyManual or automatic reclosing
yyReclosing mode selected
yyReclosing status
yyLock status
The REC2C model has an external NC output at the bottom
to indicate when reclosing is not possible:
yyTripped unit: status that allows reclosing.
yyBlocked by reclosing systems: unit tripped for
more than 15 minutes. Reclosing not allowed
yyUnit without voltage: indicates that the
tripped unit will not reclose after a trip
There is a sliding window to activate or deactivate the automatic reclosing of the RCCB.
Earth leakage protection with automatic reclosing system
Infrastructures, services, industrial range
Ultra-immunized self-reclosing earth leakage relays
RGU-10 / C RAL
WRU-10
CBS-4 / C RA / RAL
Toroidal
included
Ø 28 mm
x4
Contactor
N T
t
A
x3
Contactor
Opt.
LCD RS
DISPLAY
485
N T
x3
t
A
LCD
DISPLAY
Contactor
In
6 to
80 A
N T
x3
CBS-4
Toroidal / oval
WGC t
A
x4
Opt.
LCD
RS
485
DISPLAY
RGU-10
series
Available in:
Ø 25 mm,
Ø 35 mm,
Ø 55 mm,
Ø 80 mm,
Ø 115 mm,
Ø 140 mm,
Ø 180 mm, *
220x105 mm,
350x150 mm,
500x200 mm.
* on request
Applications
yyPublic street lighting
yyTelecommunications centers
yyIn general any infrastructure
or service that requires a
constant electric supply
when maintenance issues
are complicated or there
is no easy access.
Earth leakage protection and circuit breaker with self-reclosing system
Range of services, industrial
Ultra-immunized self-reclosing earth leakage relays
RGU-10 / C MT
WRU-10 MT
WRGU-10MTT
Toroidal
included
Ø 28 mm
N T
t
A
LCD
DISPLAY
x3
Opt.
RS
485
N T
t
A
LCD
DISPLAY
x3
In
6 to
80 A
In
6 to
63 A
t
A
LCD
DISPLAY
With the Certificate of:
Technical Qualification
of Telefónica España
and Telefónica Móviles
España (Spain)
Associated motorized circuit breaker
Series MT
REC Max MP
2 Poles
x2
outputs
x2
inputs
x4.5
4 Poles
IΔn
6 to
63 A
x6.5
2 Poles
IΔn
6 to
63 A
x5.5
Series MT FDE
3 Poles
4 Poles
IΔn
6 to
63 A
x7.5
IΔn
6 to
63 A
IΔn
80 to
250 A
81 x 130 x
185 mm
4 Poles
108 x 130 x
185 mm
* Other models from 400 A to 630 A.
Applications
yyOffices
yyShopping malls
yyIndustrial farms
yyIn general, any process or that
service requires a constant
electric supply when maintenance
issues are complicated or
there is no easy access.
Circuit Breaker Protection with automatic reclosing system
Infrastructures, services, industrial range
Relays with automatic reclosing
REC Max P
2 Poles
x4.5
RRM
4 Poles
In
6 to
63 A
x6.5
Applications
yyShopping malls
yyOffices
yyLivestock operations
yyIn general, any process or service
that requires a constant electric
supply when maintenance
issues are complicated or
there is no easy access.
In
6 to
63 A
N T
x1
In
6 to
250 A
Opt.
RS
485
Application for public lighting
The use of earth leakage protection devices with automatic reclosing was already established in Low Voltage Directive ITC-BT-09, which refers to external
lighting installations in the section on protection, measurement and control
panels (in Spain). The same section also refers to the trip threshold regulation
in relation to the earthing resistance measurement during the commissioning
of an electric installation service.
Disconnection threshold of the
earth leakage protection
300 mA
500 mA
1A
Ohm Value of the earthing
resistance less than:
Ethernet
30 Ω
5Ω
1Ω
TCP2RS+
RS-485
Our units can be linked to circuit breakers/rearms that are used for the lighting
drive system. In turn, these elements are usually governed by timer or photoelectric switches.
Circuit breaker
Astronomical
Clock
RGU-10 C RAL
Contactor
CBS-4 C RA
CBS-4 C RAL
WGC
REC2C
WRU-10
WGC
WGC
WGC
WGC
Application in industries and offices
The dual function of earth leakage protection devices as automatic reclosing
elements enables them to be used in earth leakage protection and circuit
breaker applications, given that they can be associated to automatic motorised switches. Possible applications of these units in low or zero supervision
installations or infrastructures are, among others:
yyTelecommunications stations, signalling and control boxes
yy Water and gas distributors, pumping blocks
yy Photovoltaic installations, panels
yy Computer systems, UPS
yy Food preservation
• Supermarkets, frozen food companies, refrigerating chambers
• Hotels, restaurants, catering
• Climate controls, heat pumps, air-conditioning
yy 24-hour services: ATMs, banks, video stores
yy Exterior building lighting, stores and illuminated indicators
yy Municipal infrastructures, traffic lights, public lighting
yyAutomation, home automation, alarms, garage doors, irrigation systems.
Ethernet
EDS
RS-485
CBS-4 C
WGC
Circuit breaker
RGU-10 C
WGC
WGC
WGC
WGC
Power Line 2
Lighting Line
Air-conditioning Line
Power Line 1
MT-FDE
MT
REC Max MP
REC Max P
RGU-10C MT
WGC
WGC
WRU-10 MT
REC Max P
Management and monitoring software
With PowerStudio Scada you can:
yy Guarantee the accurate energy supervision of your installation
yyAchieve the preventive maintenance of all lines and installations
The RGU-10 C and CBS-4 C (RAL /MT) series use the standardised Modbus/RTU
(RS-485) or Modbus/TCP (Ethernet) protocols, which can be queried from any other
market application.
h t t p : // p o w e r s t u d i o . c i r c u t o r. c o m
Designed by: Image and Communications Department - CIRCUTOR, SA
Solutions for
earth leakage protection
and circuit breakers with
automatic reclosing system
+ information: proteccion@circutor.es
www.circutor.com
CIRCUTOR, SA - Vial Sant Jordi, s/n
08232 Viladecavalls (Barcelona) Spain
Tel. (+34) 93 745 29 00 - Fax: (+34) 93 745 29 14
central@circutor.es
Code: C2P253-01
CIRCUTOR, SA reserves the right to change all information contained in this catalogue.