Siemens 6SL32302YE381UB0 — SINAMICS G120X AC Drive Module
Trade-offs in selecting the G120X 45 kW chassis drive
-
Operating temperature window (20°C to 45°C) — The stated ambient range is narrower than many industrial drives. Enclosure ventilation or active cooling may be required if cabinet heat load is high or ambient spikes above 35°C are expected in service.
-
Current derating at extended temperature — Rated output is 122 A. If the driven motor draws near full-load current continuously in a warm environment, verify that the 45 kW / 122 A rating is still adequate without additional derating beyond what the manufacturer applies internally.
-
FSE versus FSF (U suffix) — The seed MPN carries the U suffix, indicating a specific control interface or operator panel configuration. The C variants in the same family use a different human-machine interface option. This choice affects startup procedure, local/remote operation, and spare-part alignment across a plant.
-
Chassis-mount form factor — The drive is supplied as a box/unit for chassis mounting rather than a DIN-rail component. Panel designers should confirm enclosure depth, required side clearance for airflow, and that the 45 kW chassis can be accommodated in the intended cabinet layout.
-
Single-series scope — All in-catalog alternates share the same 122 A output, 380–480 V window, and 45 kW rating. Differences are limited to the U/C suffix (interface option) and minor series naming. No alternate changes the current class or voltage window.
Specifications
| Parameter | Value |
|---|---|
| Manufacturer | Siemens |
| Series | SINAMICS |
| Product family | G120X |
| Enclosure | Box |
| Mounting | Chassis Mount |
| Motor type | AC Motor |
| Output current | 122 A |
| Load voltage | 380–480 V |
| Related product | G120X Series |
| Operating temperature | 20°C ~ 45°C |
| RoHS status | ROHS3 Compliant |
| Product status | Active |
Ordering context — SINAMICS G120X family
The MPN prefix 6SL32302YE38 identifies this as a SINAMICS G120X frequency inverter module in the 45 kW / 380–480 V class. The suffix U indicates a specific operator interface and control-unit combination. The companion C variants (present in the in-catalog alternates) use a different control interface option, which influences startup tooling, parameter access, and operator panel layout.
G120X modules are distributed as chassis-style units intended for cabinet or machine mounting. The 45 kW / 122 A rating corresponds to a common power band for medium-sized industrial motor drives.
In-catalog comparison — 45 kW / 380–480 V G120X variants
| MPN | Series | Interface suffix | Operating temp |
|---|---|---|---|
| 6SL32302YE381UB0 (primary) | SINAMICS | U | 20°C ~ 45°C |
| 6SL32302YE381UP0 | SINAMICS | U | 20°C ~ 45°C |
| 6SL32302YE381UF0 | SINAMICS G120X | U | 20°C ~ 45°C |
| 6SL32302YE381AB0 | SINAMICS G120X | C | 20°C ~ 45°C |
All listed variants share: 122 A output, 380–480 V window, 45 kW rating, chassis-mount box package, AC motor compatibility, ROHS3 compliant, active status.
Why they are similar
-
6SL32302YE381UP0 — same SINAMICS G120X series, same 122 A / 380–480 V / 45 kW parameters, same U-suffix interface, same operating window. Differs only in internal part number suffix digits that the catalog treats as a separate line.
-
6SL32302YE381AB0 — matches on all core electrical ratings and chassis form factor; carries the C suffix instead of U, indicating the alternate control interface variant within the same G120X family.
-
6SL32302YE381UF0 — identical electrical rating, same U interface, series listed as SINAMICS G120X rather than SINAMICS alone (catalog naming difference).
These rows are in-catalog peers for screening purposes. The reader must perform their own application qualification before selecting any variant.
FAQ
What motor rating pairs with the 6SL32302YE381UB0? The module is rated 122 A output at 380–480 V and is designed for AC motors up to 45 kW. Final motor selection must match the driven load and account for the drive's current limit relative to motor full-load current.
Does the 20–45°C operating temperature range require cabinet cooling? The stated ambient range is 20°C to 45°C. For enclosure installations with multiple heat-generating devices, thermal analysis of the cabinet should confirm that ambient temperature at the drive air inlet stays within this window under worst-case conditions.
What distinguishes the U suffix from the C suffix in G120X part numbers? Both are G120X modules sharing the same 45 kW / 122 A / 380–480 V rating. The U suffix denotes a specific operator interface and control-unit configuration; the C suffix denotes a different interface option. The choice affects operator panel type, startup procedure, and spare-part grouping.