10
CIRWATT B 400
Instruction Manual
2�5 - BUILD CHARACTERISTICS
2�5�1 - GENERAL
The meter has a class-II protective insulating enclosure and double insulation.
As specified in Directives 2002/96/EC and 2002/95/EC, none of the materials or substances specified
therein are used. The materials used are fire retardant, halogen free and emit low quantities of opaque,
toxic or corrosive fumes.
The operation of the device is not affected by the presence of external magnetic fields.
The meter manufacturer guarantees a service life for the device of at least 20 years at a temperature
of 35 °C.
2�5�2 - ENVIRONMENTAL CHARACTERISTICS
The meter:
Degree of protection provided by enclosures Code IP51, CEI 60529:2001 standard.
It is protected against salt spray, UNE-EN 60068-2-11:2000 standard.
It is UV resistant, UNE-EN 60068-2-5:2000 standard.
2�5�3 - VOLTAGE BRIDGES
The bridge separates the voltage and current circuits internally, making it impossible to manipulate
them externally.
In the indirect and semi-indirect connection models, the voltage and current circuits are separated
galvanically.
2�5�4 - SEALS
The cover and base socket of the meter are closed, making it impossible to open them or insert foreign
objects without breaking the enclosure. It also has the seals required by regulation, both on the meter
cover, as well as on the sealable key and the terminal cover.
2�5�5 - WIRE COVER (DEPENDING ON VERSION)
The meters have an opaque cover over the top of the terminal box, the fixing screws and the connection
conductors.
The bottom part of the cover is designed in such a way that it can be easily broken to allow the wires
to be partially exposed whilst protecting the access to the terminals.
The meter has a sensor that detects the opening and closing of the wire cover. This detection is always
enabled, even if the meter is not powered.
The meter has a DB9 connector on the wire cover for a local connection via an electrical serial port.
