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WIRING ACCESSORIES AND SINGLE PHASE DISTRIBUTION
PG00400018U – March 2012
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Technical data
Switch and protection devices dimensions and data
12.5
RCCB technical data
Specifications
Product standard
IEC/EN 61008
No of poles
2P
Mechanical specification
Device width
35 mm
Terminal type
Box clamp
Terminal capacity
1.5 – 35mm
2
Terminal Screw
M5 combination
Terminal torque recommended
2.0Nm - max 2.4Nm
Mounting
DIN rail
Degree of protection
IP 20
Positive contact indication
Yes (Toggle position)
Electrical specification
Rated voltage
230/240 V AC
Current ratings
16, 40, 63, 80,100 A
Rated impulse and withstand voltage 4kV (1.2/50 µ sec)
Rated short circuit capacity
10kA
Sensitivity
AC
Tripping characteristic
Rated tripping currents
10, 30, 100, 300 mA
Tripping type
Instantaneous
Number of operating cycles elec
>4000
Number of operating cycles mech
>20000
RCCB dimensions (mm)
35
80
2P
T
45
10,5
4,5
30,5
44
60
5,5
Residual Current Circuit Breakers (RCCBs) technical data
Eaton’s range of Residual Current Circuit Breakers without integral
Overload protection (RCCBs), are manufactured to IEC/EN 61008 and
meet the latest European and International standards.
DIN rail mountable in 2 module width these RCCBs provide protection
solutions to a wide range of applications. With standard thermal
ratings of 16A to 100A and trip sensitivities of 10mA, 30mA, 100mA
and 300mA, these devices can be equipped with a range of
modular accessories.
The Eaton RCCBs suite with the complete range of modular devices,
and are for use within Eaton’s MEM Memera consumer units and
other applications.
These devices will accommodate cables up to 35mm
2
.
Terminology
RCD
– Residual Current Device:- This is the generic term covering a
range of devices that are able to detect residual currents sometimes
also referred to as earth leakage current. The residual current is
measured by detecting the difference between the current flowing
in the live and neutral conductors of a circuit and where the residual
current is above a predefined level, the RCD will trip. RCDs are
available in a range of sensitivities for different applications.
RCCB
– Residual Current Circuit Breaker is an RCD which will cause
disconnection of the electrical supply should it detect a residual
current passing through the device, above a specified tripping current
limit e.g. 30mA. This device does not provide over current protection
and is therefore also referred to as an RCCB without integral over
current protection.
RCBO
– Residual Current Circuit Breaker, with Overload protection,
is an RCD which will cause disconnection of the electrical supply
should it detect a residual current above a specified tripping current
limit, combined with integral overload, overcurrent, and shortcircuit
protection associated with a miniature circuit breaker.
The 17th Edition of the IEE wiring regulations BS7671 now places
much greater emphasis on the use of 30mA RCDs to provide
“additional protection” in many areas covered by the regulations,
such as circuits feeding socket outlets and for the protection of
concealed wiring.
Trip sensitivities
10mA
– Provides the highest degree of RCD protection in hazardous
environments where supplementary protection against electric shock
is required. This very high sensitivity should only be applied to final
circuits where a high degree of risk exists
30mA
– Provides a high degree of protection against electric shock
due to direct and indirect contact. A 30mA RCD will trip within 40mS
when a fault current of 150mA is detected.
This type of RCD is required to satisfy the requirements for “Additional
Protection” in accordance with BS7671 (IEE wiring regs.)
100mA
– Provides a degree of protection against electric shock
resulting from indirect contact, and is generally used to protect a
group of circuits as well as providing overall protection against Fire
risk.
300mA
– Provides a lower level of RCD protection in the form of
an overall protection against the risk of fire resulting from faults in
electrical wiring etc.