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User Guide
U 261
The equipotential bonding on the U 953 is provided by means of the fixing straps on the device or
by means of the grounding clamp on its back. Appliances within arm's reach must be mutually inte-
grated into the equipotential bonding.
Operation without connection to a protective conductor, device grounding or device equi-
potential bonding is not permitted!
2.4 Servicing and repair
Caution:
The device must not be opened by the user, since the device does not contain any user-service-
able parts!
If all instructions are observed and the device is used as stipulated, no servicing is required.
Repairs must be carried out exclusively in the factory.
2.5 Technical data on the power supply (U 261)
Mains voltage: 100 – 240 V~
Mains frequency: 50 / 60 Hz
Power consumption: 0,19 – 0,34 A per power supply unit
Degree of protection according to EN 60529: IP 20
Max. device ambient temperature: 45°C
Mains fuses: T2A L 250V
The U 261 must be operated only with the original power supply unit!
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