The Siemens 6SL3210-1KE12-3UB2 is a SINAMICS G120C compact inverter rated 0.75 kW (1 hp) at 2.2 A for low overload, for a 3-phase 380 … 480 V supply, with USS/MODBUS RTU communication.
Siemens lists efficiency class IE2, 38.6 W power loss, air cooling using an integrated fan and a unfiltered power section.
G120C drives are commissioned with an optional BOP-2 or IOP-2 operator panel or with Startdrive in TIA Portal, and integrate directly into SIMATIC S7-1200 and S7-1500 networks.
More ratings: SINAMICS G120C range; modular drives: SINAMICS G120.
Technical data
| Siemens order number | 6SL3210-1KE12-3UB2 |
|---|---|
| Product family | SINAMICS G120C compact inverter |
| Input | 3 AC, 380 … 480 V +10 % -20 % |
| Line frequency | 47 … 63 Hz |
| Input current (LO / HO) | 2.9 A / 2.5 A |
| Output voltage | 400V IEC | 480V NEC |
| Rated power (LO) | 0.75 kW / 1 hp |
| Rated power (HO) | 0.55 kW / 0.75 hp |
| Rated output current (LO) | 2.2 A |
| Rated output current (HO) | 1.7 A |
| Max. output current | 3.4 A |
| Standard digital inputs | 6 |
| Fail-safe digital inputs | 1 |
| Analog / digital inputs | 1 (Differential input) |
| Analog outputs | 1 (Non-isolated output) |
| Relay outputs (changeover) | 1 |
| Transistor outputs | 1 |
| Digital output rating (resistive) | DC 30 V, 0.5 A |
| Pulse frequency | 4 kHz |
| Output frequency, vector control | 0 … 240 Hz |
| Output frequency, V/f control | 0 … 550 Hz |
| Power factor | 0.70 … 0.85 |
| Efficiency | 0.97 |
| Efficiency class (IEC 61800-9-2) | IE2 |
| Power loss | 38.6 W |
| Sound pressure level (1 m) | 49 dB |
| Filter class (integrated) | Unfiltered |
| Communication | USS/MODBUS RTU |
| Cooling | Air cooling using an integrated fan |
| Cooling air requirement | 0.005 m³/s (0.177 ft³/s) |
| Installation altitude (without derating) | 1,000 m (3,280.84 ft) |
| Ambient temperature (operation) | -10 … 40 °C (14 … 104 °F) |
| Storage temperature | -25 … 55 °C (-13 … 131 °F) |
| Max. motor cable length, shielded | 150 m (492.13 ft) |
| Max. motor cable length, unshielded | 150 m (492.13 ft) |
| Line/motor terminals | Plug-in screw terminals |
| Line-side conductor cross-section | 1.00 … 2.50 mm² (AWG 18 … AWG 14) |
| Degree of protection | IP20 / UL open type |
| Frame size | FSAA |
| Net weight | 1.40 kg (3.09 lb) |
| Dimensions (W x H x D) | 73 mm x 173 mm x 155 mm |
| Standards | CE, cUL, UL, KC, EAC, C-Tick (RCM) |
| Condition | New, original Siemens |
Typical applications
- Packaging and bottling machines
- Pumps, fans and compressors
- Conveyors and material handling
Compatibility and replacement
This G120C has USS/MODBUS RTU on board; other G120C versions exist for USS/Modbus RTU and PROFIBUS, so check the fieldbus on the old drive. Operator panels BOP-2 (6SL3255-0AA00-4CA1) and IOP-2 (6SL3255-0AA00-4JA2) fit the G120C and are ordered separately.
Before you replace it
- Save or write down the parameters of the old drive if it still powers up; an operator panel can copy them.
- Check ventilation and cabinet temperature: drives derate or trip when the cabinet is too hot.
- Note the motor rating plate data (kW, A, V, Hz, rpm), because they are entered again during commissioning.
Frequently asked questions
LO or HO: which rating applies?
Low overload (0.75 kW, 2.2 A) suits pumps and fans; high overload (0.55 kW, 1.7 A) suits conveyors and machines with heavy starting torque.
Is an operator panel included?
No. Add a BOP-2 or IOP-2, or commission it with Startdrive in TIA Portal.
Which fieldbus does it have?
Per the Siemens data sheet: USS/MODBUS RTU.
Do you ship to my country, and what is the warranty?
Yes. RendatSP ships worldwide from Yiwu, China, by air in 5 to 7 days once the part is ready, and every part carries a 1-year warranty. Send the order number and quantity on WhatsApp and we will reply with a quotation.
Need it fast? Send the order number, quantity and delivery country on WhatsApp or through the inquiry form and we reply with a quotation the same working day. All parts are new and original, covered by a 1-year warranty, and ship worldwide by air in 5 to 7 days once ready (shipping, payment and warranty). Local agents: Saudi Arabia, Iraq, the UAE, Egypt, Oman, Libya, Morocco, Mauritania, Yemen, Algeria and Jordan.





