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CIRCUIT PROTECTION
589
RATING SPECIFICATION
DOUBLE POLE, 2 MODULE
RATING RCBO TRIPPING CURRENT
LIST NO.
16A
30mA
7816s
32A
30mA
7832s
40A
30mA
7840s
63A
30mA
7860s
80A
30mA
7880s
63A
100mA
7560s
80A
100mA
7580s
63A
300mA
7660s
80A
300mA
7680s
Sentry Technical
Residential 6kA Residual Current Devices (RCDs)
Operation
The RCD provides an indication of an earth fault and contact status as detailed below.
The operating dolly provides the following indication:
I
= Switched ON
0
= Switched OFF
The contact status is shown via dolly markings.
In the event of an Earth Fault in the installation or the operation of the test button,
the dolly will move to the OFF position. To re-connect the supply the dolly must be
reset by moving it to the ON position.
Testing
If an RCD is installed as additional protection for basic protection, it is a requirement
of the IEE Regulations that the effectiveness of the RCD be verified. This must be
achieved by a test simulating an appropriate fault condition and be independent
of any test facility incorporated in the RCD. The test currents to be applied are as
follows:
Test current
Condition
0.5 x l
∆
n RCD must not trip
1.0 x l
∆
n RCD must trip within 300mS
5.0 x l
∆
n RCD must trip within 40mS
Where l ∆ n is the RCD’s rated tripping current in accordance with wiring regulations
and product standard BS EN 61008.