Protective earth wire cross
section area
All protective earth wiring must have a cross section area equal to or greater than the
specification in this table:
PE conductor minimum areaEarth leakage
current
10 mm
2
copper or 16 mm
2
aluminium> 10 mA
Equal to or larger than the L and N-wire≤ 10 mA
Ground fault breaker
ÄKTAprocess is not equipped with a general Ground Fault Circuit Breaker and it is not
an option that is available from GE Healthcare.
However, if ground fault protection for the system is required:
•
A Ground Fault Circuit Interrupter may be installed, or
•
The system may be connected to an outlet that is protected by a permanently in-
stalled Ground Fault Circuit Breaker.
The tripping current for such an interrupter must be higher than the earth leakage current
as stated in the Test protocol in the product documentation package.
ÄKTAprocess built according to UL is equipped with a ground fault protector to protect
the UV-monitor.
Built-in circuit breakers
The mains power supply to ÄKTAprocess and the pumps are equipped with circuit
breakers inside the cabinet. Refer to the system documentation for the specific types
used in your system.
Circuit breakers for the pumps (CB1, CB2 and CB3, one for each pump) are located adja-
cent to the power transformer in the cabinet, as illustrated below. All pump circuit
breakers are rated 10 A.
Circuit breaker CB4, located in the opposite side of the cabinet, controls the main power
to the rest of the system components. This circuit breaker is also rated 10 A.
108 ÄKTAprocess Operating Instructions 29-0252-49 AA
4 Installation
4.5 Power supply
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