Siemens SIMODRIVE 611 digital Configuration Manual page 211

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05.01 05.08
Time (ms)
10 000
Fig. 7-7
© Siemens AG 2008 All Rights Reserved
SIMODRIVE 611 Configuration Manual (PJU) – 05/2008 Edition
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For timely tripping of fuses, the loop resistance as well as the vector group of
the line supply transformer being fed must satisfy the requirement that the touch
voltage of the devices is switched off by the provided fuses within the permissi-
ble tripping time (see Fig. 7-7 in accordance with EN 61800–5–1 Ed. 2007).
Decisive voltage class A
AC–2 AC–2
25 V AC 30 V AC
1 000
100
10
10
Permissible tripping time of fuses/circuit–breakers
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7.3 Line supply fuses, transformers and main switch
DC–2
60 V DC
AC–2
100
250 V
Industry Automation
7 Line Supply Connection
DC–2
1000
Touch voltage (V)
7-211
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7