siemens
Siemens SIRIUS 3RA6 Compact Combination Starter
Model: 3RA6120-1AB32
4-hour response · Pricing in SAR · Delivery across all KSA regions
3RA6120-1AB32 — Siemens SIRIUS 3RA6 Compact Combination Starter
The Siemens SIRIUS 3RA6 compact combination starter integrates a motor protection circuit breaker (MPCB), contactor, and overload relay into a single plug-together module for DOL and reversing motor starters from 0.12 kW to 7.5 kW at 400 V AC. Replacing three separate SIRIUS components with one pre-coordinated unit reduces panel wiring by up to 50%, cuts panel width by 30%, and eliminates separate IEC Type 2 co-ordination documentation — the co-ordination is pre-verified by Siemens and documented in IEC 60947-4-1 testing records.
The 3RA6 architecture features snap-on accessory modules without tools — auxiliary contacts, interface modules for PROFIBUS, AS-Interface, or IO-Link communication, and PTC thermistor evaluation modules for motor protection. The PROFIBUS/PROFINET expansion module converts the compact starter into a smart fieldbus-connected feeder reporting run status, overload, and trip events to the MCC bus — approaching SIMOCODE functionality at lower cost where advanced diagnostics are not required.
In Saudi Arabia, the SIRIUS 3RA6 KSA is widely used in industrial MCC builds and standalone machine panels where space efficiency, factory-verified Type 2 co-ordination, and low installed cost are critical. Panel builders in MODON industrial estates across Riyadh, Jeddah, and Dammam specify the 3RA6 as their default small motor starter (up to 7.5 kW) for industrial automation and HVAC applications. Vision 2030 manufacturing projects demand compact, cost-effective, fully IEC-compliant panels — requirements the 3RA6 meets comprehensively.
Razz Middle East stocks SIRIUS 3RA6 starters in all current ratings (DOL and reversing) with same-week delivery and motor control centre design consultation.
Technical Specifications
Full specifications for the 3RA6120-1AB32
- Motor Rating
- 0.12–7.5 kW at 400 V AC
- Current
- 0.32–17 A (AC-3)
- Function
- DOL or reversing
- Integrated
- MPCB + contactor + OL
- Co-ordination
- IEC Type 2 (pre-verified)
- Fieldbus Expansion
- PROFIBUS, AS-i, IO-Link modules
- Coil Voltage
- 24 V DC or 230 V AC
- Width
- 55–110 mm
- Compliance
- IEC 60947-4-1, CE
Key Features & Benefits
- Factory-integrated MPCB, contactor, and OL with pre-verified IEC Type 2 co-ordination eliminates on-site co-ordination selection effort, reducing panel design engineering time significantly.
- 50% reduction in internal wiring versus separate-component starters reduces panel assembly labour and eliminates wiring errors — the most common cause of MCC commissioning delays at Saudi panel builders.
- Snap-on fieldbus modules (PROFIBUS, AS-Interface, IO-Link) convert the compact starter into a smart MCC feeder without replacing hardware, providing an upgrade path to digital motor management.
- Plug-in power distribution bus connector enables multiple 3RA6 units to share a common busbar without individual power wiring, enabling high-density motor feeder rows in Saudi industrial panels.
- 30% narrower installation width versus separate-component starters allows more motor feeders per MCC vertical section, reducing switchroom footprint.
- PTC thermistor evaluation module adds winding temperature protection without replacing the base unit — complementing thermal overload protection for high-value motors in Saudi Arabia's hot environments.
- IEC Type 2 co-ordination documentation from Siemens satisfies IEC 61439-4 type-tested assembly requirements without customer-commissioned evidence, streamlining inspection at Aramco and SABIC approved panel builders.
Industrial Applications in Saudi Arabia
- MCC motor feeder modules for small pump and fan motors (0.12–7.5 kW) at process plant MCCs, where pre-verified Type 2 co-ordination simplifies IEC 61439-4 type test documentation.
- HVAC motor control panels for cooling tower fans and chiller auxiliaries in commercial and industrial buildings, where compact panel width is critical for false ceiling and plantroom installation.
- Pump starter panels for irrigation, water boosting, and pressure systems at residential compounds and agricultural projects, where low installed cost makes the 3RA6 the preferred choice.
- Food processing conveyor motor starters at Saudi FMCG manufacturers in MODON Riyadh, where IEC Type 2 compliance is required for machinery CE marking documentation.
- Cement plant conveyor and auxiliary equipment starters at Saudi Cement and YACCO, where high motor feeder counts benefit from the compact pre-wired 3RA6 format.
- Water treatment plant chemical dosing and filter backwash motor starters at NWC and Marafiq utilities, where enclosed MCC installation suits the 3RA6's IP20 base rating.
- NEOM and Vision 2030 infrastructure project MCC motor feeders, where the 3RA6's space efficiency, IEC compliance, and fieldbus upgrade capability align with smart facility design requirements.
Industrial Supplier in Saudi Arabia
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Frequently Asked Questions — 3RA6120-1AB32
Common questions from buyers in Saudi Arabia and the GCC