Installation - Siemens SINAMICS V20 Operating Instructions Manual

Safety instructions
1.2 Additional safety instructions

Installation

Requirements for United States / Canadian installations (UL/cUL)
Suitable for use on a circuit capable of delivering not more than 40000 rms Symmetrical
Amperes, 480 Vac maximum for 400 V variants of inverters or 240 Vac maximum for 230 V
variants of inverters, when protected by UL/cUL-certified Class J fuses or type E
combination motor controllers. For each frame size A to E, use 75 °C copper wire only.
This equipment is capable of providing internal motor overload protection according to
UL508C. In order to comply with UL508C, parameter P0610 must not be changed from its
factory setting of 6.
For Canadian (cUL) installations the inverter mains supply must be fitted with any external
recommended suppressor with the following features:
• Surge-protective devices; device shall be a Listed Surge-protective device (Category
• Rated nominal voltage 480/277 VAC (for 400 V variants) or 240 VAC (for 230 V
• Clamping voltage VPR = 2000 V (for 400 V variants) / 1000 V (for 230 V variants), IN =
• Suitable for Type 1 or Type 2 SPD application
• Clamping shall be provided between phases and also between phase and ground
Branch-circuit protective device
The opening of the branch-circuit protective device may be an indication that a fault current
has been interrupted. To reduce the risk of fire or electric shock, current-carrying parts and
other components of the controller should be examined and the controller should be
replaced if damaged. If burnout of the current element of an overload relay occurs, the
complete overload relay must be replaced.
Integral solid state short circuit protection does not provide branch circuit protection. Branch
circuit protection must be provided in accordance with the National Electrical Code and any
additional local codes.
Cable connection
Separate the control cables from the power cables as much as possible.
Keep the connecting cables away from rotating mechanical parts.
18
WARNING
code VZCA and VZCA7)
variants), 50/60 Hz, three phase (for 400 V variants) or single phase (for 230V variants)
3 kA min, MCOV = 508 VAC (for 400 V variants) / 264 VAC (for 230V variants), SCCR =
40 kA
WARNING
CAUTION
SINAMICS V20 Inverter
Operating Instructions, 09/2014, A5E34559884