The following tables list the recommended and maximum connectable line and motor-side cable cross sections and connections for a single connection.
The recommended cross-sections are based on the specified fuses. They are valid for a three-conductor copper cable routed horizontally in air with PVC insulation and a permissible conductor temperature of 70 °C (e.g. Protodur NYY or NYCWY) at an ambient temperature of 40 °C and individual routing.
For deviating conditions (cable routing, cable accumulation, ambient temperature), the appropriate correction factors according to IEC 60364-5-52 must be taken into account.
For additional information, please refer to the SINAMICS Low Voltage Engineering Manual.
Type rating | SINAMICS S150 Converter Cabinet Unit | Line supply connection | Motor connection | Cabinet grounding | |||||
---|---|---|---|---|---|---|---|---|---|
|
| Recommended cross-section 1) | Max. cable cross-section | Fixing screw M12 | Recommended cross-section 1) | Max. cable cross-section | Fixing screw M12 | Fixing screw M12 | Remarks |
|
| IEC | IEC | (Number of holes) | IEC | IEC | (Number of holes) | (Number of holes) | |
kW | 6SL3710-... | mm2 | mm2 |
| mm2 | mm2 | |||
380 ... 480 V 3 AC | |||||||||
110 | 7LE32-1AA3 | 2 × 70 | 4 × 240 | (2) | 2 × 50 | 2 × 150 | (2) | (2) | |
132 | 7LE32-6AA3 | 2 × 95 | 4 × 240 | (2) | 2 × 70 | 2 × 150 | (2) | (2) | |
160 | 7LE33-1AA3 | 2 × 120 | 4 × 240 | (2) | 2 × 95 | 2 × 150 | (2) | (2) | |
200 | 7LE33-8AA3 | 2 × 120 | 4 × 240 | (2) | 2 × 95 | 2 × 150 | (2) | (2) | |
250 | 7LE35-0AA3 | 2 × 185 | 4 × 240 | (2) | 2 × 150 | 2 × 240 | (2) | (2) | |
315 | 7LE36-1AA3 | 2 × 240 | 4 × 240 | (2) | 2 × 185 | 4 × 240 | (2) | (2) | |
400 | 7LE37-5AA3 | 3 × 185 | 4 × 240 | (2) | 2 × 240 | 4 × 240 | (2) | (10) | Cu bar |
450 | 7LE38-4AA3 | 4 × 150 | 8 × 240 | (4) | 3 × 185 | 4 × 240 | (2) | (16) | Cu bar |
560 | 7LE41-0AA3 | 4 × 185 | 8 × 240 | (4) | 4 × 185 | 6 × 240 | (3) | (18) | Cu bar |
710 | 7LE41-2AA3 | 4 × 240 | 8 × 240 | (4) | 4 × 240 | 6 × 240 | (3) | (18) | Cu bar |
800 | 7LE41-4AA3 | 6 × 185 | 8 × 240 | (4) | 6 × 185 | 6 × 240 | (3) | (18) | Cu bar |
500 ... 690 V 3 AC | |||||||||
75 | 7LG28‑5AA3 | 50 | 4 × 240 | (2) | 35 | 2 × 70 | (2) | (2) | |
90 | 7LG31-0AA3 | 50 | 4 × 240 | (2) | 50 | 2 × 150 | (2) | (2) | |
110 | 7LG31-2AA3 | 70 | 4 × 240 | (2) | 70 | 2 × 150 | (2) | (2) | |
132 | 7LG31-5AA3 | 95 | 4 × 240 | (2) | 70 | 2 × 150 | (2) | (2) | |
160 | 7LG31-8AA3 | 120 | 4 × 240 | (2) | 95 | 2 × 150 | (2) | (2) | |
200 | 7LG32-2AA3 | 2 × 70 | 4 × 240 | (2) | 120 | 2 × 150 | (2) | (2) | |
250 | 7LG32-6AA3 | 2 × 95 | 4 × 240 | (2) | 2 × 70 | 2 × 185 | (2) | (2) | |
315 | 7LG33-3AA3 | 2 × 120 | 4 × 240 | (2) | 2 × 95 | 2 × 240 | (2) | (2) | |
400 | 7LG34-1AA3 | 2 × 185 | 4 × 240 | (2) | 2 × 120 | 4 × 240 | (2) | (2) | |
450 | 7LG34-7AA3 | 2 × 185 | 4 × 240 | (2) | 2 × 150 | 4 × 240 | (2) | (2) | |
560 | 7LG35-8AA3 | 2 × 240 | 4 × 240 | (2) | 2 × 185 | 4 × 240 | (2) | (2) | |
710 | 7LG37-4AA3 | 3 × 185 | 8 × 240 | (4) | 3 × 150 | 6 × 240 | (3) | (18) | Cu bar |
800 | 7LG38-1AA3 | 4 × 150 | 8 × 240 | (4) | 3 × 185 | 6 × 240 | (3) | (18) | Cu bar |
900 | 7LG38-8AA3 | 4 × 150 | 8 × 240 | (4) | 4 × 150 | 6 × 240 | (3) | (18) | Cu bar |
1000 | 7LG41-0AA3 | 4 × 185 | 8 × 240 | (4) | 4 × 185 | 6 × 240 | (3) | (18) | Cu bar |
1200 | 7LG41-3AA3 | 4 × 240 | 8 × 240 | (4) | 4 × 240 | 6 × 240 | (3) | (18) | Cu bar |
1) The recommendations for the North American market in AWG or MCM must be taken from the corresponding standards NEC (National Electrical Code) or CEC (Canadian Electrical Code).
It is generally recommended to use shielded 3-conductor three-phase cables between the converter and motor – and for higher power ratings, symmetrical cables where possible. If required, several of these cables can be connected in parallel. There are two main reasons for this:
The cable cross-section required depends on the current being conducted in the cable. The permissible current load capability of cables is defined, for example in IEC 60364-5-52. On one hand this is dependent on the ambient conditions, such as temperature, and on the other hand, the type of routing. It must be taken into account whether cables are individually routed with relatively good cooling, or whether several cables are routed together; in this case, cable ventilation is significantly poorer, which can therefore result in higher cable temperatures. Regarding this topic, reference is made to the corresponding correction factors for these secondary conditions in IEC 60364-5-52.
For 3-conductor copper and aluminum cables with PVC insulation and a permissible conductor temperature of 70 °C (e.g. Protodur NYY or NYCWY), as well as an ambient temperature of 40 °C, the cross-sections can be determined from the information provided in the following table, which is based on IEC 60364-5-52.
Cross-section of 3-conductor cable | Copper cable | Aluminum cable | ||
---|---|---|---|---|
| Individual routing | Several cables lying next to one another 1) | Individual routing | Several cables lying next to one another 1) |
mm2 | A | A | A | A |
3 × 2.5 | 22 | 17 | 17 | 13 |
3 × 4.0 | 30 | 23 | 23 | 18 |
3 × 6.0 | 37 | 29 | 29 | 22 |
3 × 10 | 52 | 41 | 40 | 31 |
3 × 16 | 70 | 54 | 53 | 41 |
3 × 25 | 88 | 69 | 68 | 53 |
3 × 35 | 110 | 86 | 84 | 65 |
3 × 50 | 133 | 104 | 102 | 79 |
3 × 70 | 171 | 133 | 131 | 102 |
3 × 95 | 207 | 162 | 159 | 124 |
3 × 120 | 240 | 187 | 184 | 144 |
3 × 150 | 278 | 216 | 213 | 166 |
3 × 185 | 317 | 247 | 244 | 190 |
3 × 240 | 374 | 292 | 287 | 224 |
Current-carrying capacity according to IEC 60364-5-52 at 40 °C
1) A maximum of 9 cables may be routed directly next to one another horizontally on a cable tray.
Cables must be connected in parallel for higher currents.
Note: The recommendations for the North American market in AWG or MCM must be taken from the corresponding standards NEC (National Electrical Code) or CEC (Canadian Electrical Code).
The protective conductor must be dimensioned taking into account the following data:
Cross-section, line conductor | Minimum cross-section, external protective conductor |
---|---|
mm2 | mm2 |
up to 16 | Minimum cross-section of external conductor |
16 ... 35 | 16 |
from 35 | At least half the cross-section of external conductor |
Note: The recommendations for the North American market in AWG or MCM must be taken from the corresponding standards NEC (National Electrical Code) or CEC (Canadian Electrical Code).