siemens
Siemens SINAMICS G120 Variable Speed Drive
Model: 6SL3210-1KE21-3AF1
4-hour response · Pricing in SAR · Delivery across all KSA regions
6SL3210-1KE21-3AF1 — Siemens SINAMICS G120 Variable Speed Drive
The Siemens SINAMICS G120 is the benchmark modular variable speed drive for general industrial applications, built around a detachable Control Unit (CU) and Power Module (PM) architecture that fundamentally simplifies maintenance and spare parts management. When a fault occurs, the CU is swapped without disturbing motor cabling, and the replacement PM retains full parameter settings stored on the CU — a feature that reduces planned maintenance downtime from hours to under 30 minutes on large pump and fan motor installations. The G120 covers power ratings from 0.37 kW to 250 kW on 200–480 V AC supply, with the PM240-2 Power Module available in IP55 enclosure rating for direct installation in Saudi Arabia's dusty industrial environments without an additional enclosure cabinet.
From a control technology perspective, the G120 delivers sensorless vector control for dynamic torque response without encoder feedback, V/f control for multi-motor group drives, and closed-loop speed regulation with encoder feedback for demanding constant-velocity conveyor and winding applications. The CU240E-2 Control Unit natively supports PROFINET and PROFIBUS fieldbus communication, placing the drive directly on the TIA Portal automation network and enabling full parameter access, diagnostics, and firmware updates over the plant network. Built-in safety functions — Safe Torque Off (STO) and Safe Stop 1 (SS1) — are certified to SIL 2 / PLd (EN ISO 13849-1), eliminating the need for external safety relays in most machine guarding and motor isolation applications.
In Saudi Arabia, the SINAMICS G120 is the most widely specified Siemens drive in the Kingdom, deployed across SABIC and SADAF petrochemical facilities in Jubail Industrial City, Saudi Aramco utilities, NWC water booster stations, and large HVAC plants in commercial developments across Riyadh and Jeddah. Its combination of modular serviceability and PROFINET integration makes it the preferred drive for panel builders assembling motor control centres (MCCs) for Vision 2030 giga-projects including NEOM's infrastructure and the Red Sea Project resort facilities. The drive's energy-efficiency class IE2 compliance for drive systems meets Saudi Energy Efficiency Program (SEEP) requirements increasingly mandated in government procurement.
Razz Middle East stocks SINAMICS G120 Control Units and Power Modules across the most common current ratings for immediate delivery throughout the Kingdom. Our engineering team provides TIA Portal drive commissioning, PROFINET network integration, and on-site startup support in Riyadh, Jeddah, Dammam, Al Khobar, Jubail, and Yanbu, with 4-hour RFQ response and SAR-denominated pricing.
Technical Specifications
Full specifications for the 6SL3210-1KE21-3AF1
- Power Range
- 0.37–250 kW
- Voltage
- 200–480 V AC
- Control Units
- CU240E-2 / CU250S-2
- Control Modes
- Sensorless vector / V/f / closed-loop vector
- Enclosure
- IP20 (PM240) / IP55 (PM240-2)
- Communication
- PROFINET, PROFIBUS, USS, Modbus RTU
- Safety Functions
- STO, SS1 (SIL 2 / PLd)
- Ambient Temperature
- -10 to +50°C
Key Features & Benefits
- Detachable CU and PM modular architecture allows Control Unit swap without disturbing motor cabling or power connections — replacing a CU takes under 30 minutes on site, with all parameters automatically restored from the CU's integrated memory.
- PROFINET and PROFIBUS communication built into the CU240E-2 enables full integration into TIA Portal automation projects, providing real-time diagnostics, parameter access, and firmware updates over the plant network without additional gateway hardware.
- Safe Torque Off (STO) and Safe Stop 1 (SS1) safety functions certified to SIL 2 / PLd (EN ISO 13849-1) eliminate the need for external safety relay modules in most machine guarding and emergency stop applications.
- PM240-2 Power Module in IP55 enclosure rating provides protection against dust and water jets, enabling direct panel-free installation in Saudi Arabia's dusty outdoor pump stations and process areas without a separate enclosure cabinet.
- Sensorless vector control delivers torque accuracy of ±5% without encoder feedback across the full speed range, covering demanding conveyor, compressor, and process pump applications with stable speed regulation under varying load.
- Energy efficiency class IE2 compliance for the complete drive system meets Saudi Energy Efficiency Program (SEEP) requirements, supporting green building and industrial energy certification programs under Vision 2030.
- Comprehensive accessory ecosystem including Basic Operator Panel (BOP-2), Intelligent Operator Panel (IOP-2), and PC commissioning tool Startdrive within TIA Portal reduces setup time and provides multi-language operator interface options.
Industrial Applications in Saudi Arabia
- Centrifugal pump drives at SABIC and SADAF petrochemical facilities in Jubail Industrial City, where PROFINET integration allows centralized monitoring from the TIA Portal SCADA system and remote fault diagnostics during unattended night operation.
- HVAC air handling unit fan drives in commercial towers across Riyadh's King Abdullah Financial District and Jeddah's Corniche developments, where IP55 Power Modules allow installation in rooftop plant rooms exposed to sand and humidity.
- Conveyor and bucket elevator drives at cement and aggregate quarrying operations in Riyadh, Tabuk, and Jizan, where the modular CU/PM design allows fast on-site replacement during scheduled maintenance windows.
- NWC water booster station pump drives across the Kingdom, where the G120's multi-pump control capability and sleep/wake function reduces pump energy consumption during low-demand overnight periods.
- Compressor drives at ARAMCO gas processing facilities, where sensorless vector control maintains precise speed under varying gas pressure conditions without the cost and complexity of encoder feedback installation.
- NEOM utility infrastructure motor drives, where PROFINET IRT communication and integrated energy metering support the project's Industry 4.0 and sustainability performance tracking requirements.
- MCC panel integration for Saudi Vision 2030 industrial projects assembled by SEC-approved panel builders, where standardisation on G120 simplifies spare parts, commissioning tools, and operator training across multiple project sites.
Industrial Supplier in Saudi Arabia
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