Trumpf BendMaster 150, Operator'S Manual

Page: 58 / 258

4. Electrics
The requirements specified in the "Electrical" section must be
met by a company which specializes in electrical installations.
The IEC conditions apply worldwide, the NEC conditions apply
only for Canada and the USA.
4.1 Electrical power supply
Note
The central connection point is on the switch cabinet and is
shown on the installation plan with the illustrated symbol.
Connected loads
Note
Impermissible voltage fluctuations endanger the faultless opera-
tion of the machines and reduce their performance. A voltage
stabilizer is necessary. Otherwise a
regulated isolating trans-
former can be used.
Before shipping, the system is set to the power supply voltage
and frequency specified by the customer.
Property Value
Line voltage at 50 Hz ± 1% V 400 ±5%
Line voltage at 60 Hz ± 1% V 460 ±5%
Frequency tolerance - ±2%
Control voltage V 24
Connected load kVA 7.5
Fuse protection at 400 V A 16
Maximum interruption time - 10 ms/10 s
Tab. 2-11
The use of slow-blow fuses is preferred. If these fuses are also
used for branch circuits, an ETI type fuse must be used to pro-
tect the machine from current peaks when switching the machine
on.
2
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14
Electrics - Version 10
B579EN
Target group
IEC/NEC conditions
NEC conditions for fuses