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First Steps
1.4 Electrical Inspection
1.4
Electrical Inspection
Device Protection
!
DANGER
Danger when connecting the 7SR46 device.
Noncompliance with the safety notes will result in death, severe injury, or considerable material
damage.
The device must be situated in the operating area for at least 2 hours before you connect it to the
²
power supply for the first time. This prevents condensation from forming in the device.
If the device has been in storage for more than 2 years, connect it to an auxiliary power supply for 1 to
²
2 days. This causes the electrolytic capacitors on the printed circuit-board assemblies to form again.
Perform the inspection procedure below and follow the safety measures.
²
Activating the Battery
Unscrew and open the battery compartment.
²
To activate the battery, remove the protective paper strip from the battery by simply pulling on the paper
²
strip.
Push the battery compartment including the battery back in again and screw it to the housing (refer to
²
3.1 Battery
NOTE
i
i
The battery is covered by a paper strip, which prevents premature discharge.
The battery compartment is located on the front of the device. You do not have to take the battery out of
the compartment in order to remove the paper strip.
Grounding a Device
The 7SR46 devices are protection class III equipment. The devices must be connected with the system earth
prior to commissioning.
²
The grounding cable must be wired using a non-stranded cable with a cross section of 4 mm
This cable must be terminated in the shortest possible path to the ground terminal/bus bar in panel or
cubicle.
Connecting a Device
Connect the device as per the connection diagrams mentioned in the hardware manual.
²
Tighten the terminal screws to the prescribed torques (see chapter
²
Specification).
18
Replacement).
2
/6 mm
2.5 Connectors and Terminal Blocks
Reyrolle, Operating, Manual
C53000-B7040-C103-1, Edition 10.2022
2
.
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