Siemens & Innomotics SIMOTICS 1LE1 Low-Voltage AC Motors
Brand: Siemens / Innomotics | Series: SIMOTICS GP (1LE10) & SIMOTICS SD (1LE15 / 1LE16)
Global Heritage & Brand Transition Notice — Siemens to Innomotics:
The SIMOTICS 1LE1 platform represents Siemens' flagship European and global low-voltage three-phase asynchronous motor series. Following Siemens' corporate carve-out of its large and low-voltage motor business, the entire 1LE1 product portfolio is now manufactured and supplied under the independent brand identity Innomotics.
Engineering Consistency & Sourcing Value:
• 100% Unchanged Manufacturing Quality: Built in the established European factories (Czech Republic and Germany), Innomotics 1LE1 motors preserve identical winding materials, terminal box layouts, dynamic balancing, and IEC 60034 test standards.
• Dual Material Execution: SIMOTICS GP 1LE10 features lightweight aluminum enclosures (IEC 80 to 200), while SIMOTICS SD 1LE15 / 1LE16 features ultra-rugged cast-iron casings (IEC 71 to 315) engineered for aggressive chemical, marine, and process industrial environments.
• 100% Direct Retrofit for Legacy 1LA & 1LG: 1LE1 is the direct drop-in successor to legacy Siemens 1LA7, 1LA9, 1LG4, and 1LG6 motors, ensuring identical shaft centerlines, foot bolt centers, and flange diameters with substantially higher efficiency (IE3 / IE4).
The SIMOTICS 1LE1 platform represents Siemens' flagship European and global low-voltage three-phase asynchronous motor series. Following Siemens' corporate carve-out of its large and low-voltage motor business, the entire 1LE1 product portfolio is now manufactured and supplied under the independent brand identity Innomotics.
Engineering Consistency & Sourcing Value:
• 100% Unchanged Manufacturing Quality: Built in the established European factories (Czech Republic and Germany), Innomotics 1LE1 motors preserve identical winding materials, terminal box layouts, dynamic balancing, and IEC 60034 test standards.
• Dual Material Execution: SIMOTICS GP 1LE10 features lightweight aluminum enclosures (IEC 80 to 200), while SIMOTICS SD 1LE15 / 1LE16 features ultra-rugged cast-iron casings (IEC 71 to 315) engineered for aggressive chemical, marine, and process industrial environments.
• 100% Direct Retrofit for Legacy 1LA & 1LG: 1LE1 is the direct drop-in successor to legacy Siemens 1LA7, 1LA9, 1LG4, and 1LG6 motors, ensuring identical shaft centerlines, foot bolt centers, and flange diameters with substantially higher efficiency (IE3 / IE4).
The Siemens & Innomotics SIMOTICS 1LE1 Series provides unmatched operational reliability, world-class electrical efficiency, and modular flexibility across global industrial networks. Designed for direct online (DOL) operation and variable frequency drive (VFD) inverter duty, 1LE1 motors are supplied in 2, 4, 6, and 8 poles covering 0.55 kW to 250 kW. Equipped with DURIGNIT IR 2000 Class F insulation (Class B temperature rise), IP55/IP65 protection, and optimized thermal dissipate ribs, 1LE1 motors are specified worldwide for heavy pumps, continuous ventilation fans, industrial compressors, mixers, and conveyor drive stations.
Technical Specifications
| Model / Part Number | 1LE1501-1DB43-4AA4 (15 kW, 4-Pole, Frame 160M, IE3 Cast Iron) |
|---|---|
| Brand Lineage | Siemens → Innomotics (100% Authentic European Factory Supply) |
| Enclosure Executions | SIMOTICS GP 1LE10 (Aluminum) | SIMOTICS SD 1LE15 & 1LE16 (Cast Iron) |
| Energy Efficiency Classes | IE2 High Efficiency (1LE1001), IE3 Premium (1LE1003 / 1LE1501), IE4 Super Premium (1LE1004 / 1LE1601) |
| Rated Power Range | 0.55 kW to 250 kW (IEC Frame Sizes 71M to 315L) |
| Pole Configurations | 2-Pole (3000 rpm), 4-Pole (1500 rpm), 6-Pole (1000 rpm), 8-Pole (750 rpm) |
| Insulation & Thermal Class | DURIGNIT IR 2000 Class F (155°C), utilized to Class B (80K temperature rise at 40°C ambient) |
| Mounting Executions | IM B3 (Foot), IM B5 (Flange), IM B14 (Face Flange), IM B35 (Foot & Flange), IM V1 (Vertical) |
Siemens & Innomotics 1LE1 Global Motor Selection Table (IE3 Premium)
Technical selection directory for Siemens & Innomotics SIMOTICS 1LE1 Low Voltage Motors. Review complete ratings for European-standard IE3 Premium Efficiency series (400V 50Hz, 4-Pole, 1500 rpm). Identify exact IEC frame sizes, frame materials (Aluminum 1LE10 vs. Cast Iron 1LE15), output power in kW, and official order designations for procurement:
| Brand Lineage | Series | Frame Material | Frame Size | Rated Power | Poles | Order Number / Model |
|---|---|---|---|---|---|---|
| Siemens / Innomotics | SIMOTICS GP | Aluminum | 80M | 0.55 kW | 4 | 1LE1003-0DB2□-□□□□ |
| Siemens / Innomotics | SIMOTICS GP | Aluminum | 80M | 0.75 kW | 4 | 1LE1003-0DB3□-□□□□ |
| Siemens / Innomotics | SIMOTICS GP | Aluminum | 90S | 1.1 kW | 4 | 1LE1003-0EB0□-□□□□ |
| Siemens / Innomotics | SIMOTICS GP | Aluminum | 90L | 1.5 kW | 4 | 1LE1003-0EB4□-□□□□ |
| Siemens / Innomotics | SIMOTICS GP | Aluminum | 100L | 2.2 kW | 4 | 1LE1003-1AB4□-□□□□ |
| Siemens / Innomotics | SIMOTICS GP | Aluminum | 100L | 3.0 kW | 4 | 1LE1003-1AB5□-□□□□ |
| Siemens / Innomotics | SIMOTICS GP | Aluminum | 112M | 4.0 kW | 4 | 1LE1003-1BB2□-□□□□ |
| Siemens / Innomotics | SIMOTICS GP | Aluminum | 132S | 5.5 kW | 4 | 1LE1003-1CB0□-□□□□ |
| Siemens / Innomotics | SIMOTICS GP | Aluminum | 132M | 7.5 kW | 4 | 1LE1003-1CB2□-□□□□ |
| Siemens / Innomotics | SIMOTICS GP | Aluminum | 160M | 11.0 kW | 4 | 1LE1003-1DB2□-□□□□ |
| Siemens / Innomotics | SIMOTICS GP | Aluminum | 160L | 15.0 kW | 4 | 1LE1003-1DB4□-□□□□ |
| Siemens / Innomotics | SIMOTICS SD | Cast Iron | 160M | 11.0 kW | 4 | 1LE1501-1DB2□-□□□□ |
| Siemens / Innomotics | SIMOTICS SD | Cast Iron | 160L | 15.0 kW | 4 | 1LE1501-1DB4□-□□□□ |
| Siemens / Innomotics | SIMOTICS SD | Cast Iron | 180M | 18.5 kW | 4 | 1LE1501-1EB2□-□□□□ |
| Siemens / Innomotics | SIMOTICS SD | Cast Iron | 180L | 22.0 kW | 4 | 1LE1501-1EB4□-□□□□ |
| Siemens / Innomotics | SIMOTICS SD | Cast Iron | 200L | 30.0 kW | 4 | 1LE1501-2AB4□-□□□□ |
| Siemens / Innomotics | SIMOTICS SD | Cast Iron | 200L | 37.0 kW | 4 | 1LE1501-2AB5□-□□□□ |
| Siemens / Innomotics | SIMOTICS SD | Cast Iron | 225S | 37.0 kW | 4 | 1LE1501-2BB0□-□□□□ |
| Siemens / Innomotics | SIMOTICS SD | Cast Iron | 225M | 45.0 kW | 4 | 1LE1501-2BB2□-□□□□ |
| Siemens / Innomotics | SIMOTICS SD | Cast Iron | 250M | 55.0 kW | 4 | 1LE1501-2CB2□-□□□□ |
| Siemens / Innomotics | SIMOTICS SD | Cast Iron | 280S | 75.0 kW | 4 | 1LE1501-2DB0□-□□□□ |
| Siemens / Innomotics | SIMOTICS SD | Cast Iron | 280M | 90.0 kW | 4 | 1LE1501-2DB2□-□□□□ |
| Siemens / Innomotics | SIMOTICS SD | Cast Iron | 315S | 110 kW | 4 | 1LE1501-3AB0□-□□□□ |
| Siemens / Innomotics | SIMOTICS SD | Cast Iron | 315M | 132 kW | 4 | 1LE1501-3AB2□-□□□□ |
| Siemens / Innomotics | SIMOTICS SD | Cast Iron | 315L | 160 kW | 4 | 1LE1501-3AB4□-□□□□ |
| Siemens / Innomotics | SIMOTICS SD | Cast Iron | 315L | 200 kW | 4 | 1LE1501-3AB5□-□□□□ |
| Siemens / Innomotics | SIMOTICS SD | Cast Iron | 315L | 250 kW | 4 | 1LE1501-3AB6□-□□□□ |
Documentation & Technical Catalogs
SIMOTICS 1LE1 Series Architectural & Material Matrix
Engineering comparison between General Purpose aluminum (1LE10) and Severe Duty cast iron (1LE15 / 1LE16) series:
| Motor Series & Model Designation | Efficiency Standard | Housing Material | Frame Sizes Covered | Key Environmental Advantages |
|---|---|---|---|---|
| SIMOTICS GP 1LE1001 | IE2 High Efficiency | Die-Cast Aluminum | Frame 80M to 200L (0.55 - 37 kW) | Lightweight, integrated terminal box, excellent thermal dissipation. |
| SIMOTICS GP 1LE1003 | IE3 Premium Efficiency | Die-Cast Aluminum | Frame 80M to 200L (0.75 - 37 kW) | Lowest lifecycle power consumption for standard packaging & HVAC. |
| SIMOTICS SD 1LE1501 / 1LE1503 | IE3 Premium Efficiency | Grey Cast Iron (EN-GJL-200) | Frame 71M to 315L (0.55 - 250 kW) | Rigid cast iron bearing plates, high mechanical shock absorption. |
| SIMOTICS SD 1LE1601 / 1LE1603 | IE4 Super Premium | Grey Cast Iron | Frame 100L to 315L (2.2 - 200 kW) | Maximum operational efficiency exceeding global eco-design directives. |
Legacy Siemens 1LA / 1LG to 1LE1 Direct Replacement Guide
Obsolete Siemens 1LA and 1LG motors can be replaced directly by modern Innomotics 1LE1 units. Review the exact 1-to-1 dimensional and electrical mapping:
| Obsolete Siemens Model (1LA / 1LG) | Obsolescence Risk Factor | Direct Modern 1LE1 Replacement | Efficiency Class | Mechanical Fit & Mounting Compatibility Notes |
|---|---|---|---|---|
| Siemens 1LA7 Series (Aluminum) | Non-compliant IE1 efficiency; high heat rise | SIMOTICS GP 1LE1003 100% Drop-In | IE3 Premium | Exact match for shaft diameter, centerline height, and B3/B5/B14 bolt patterns. |
| Siemens 1LA9 Series (High Output) | Discontinued spare parts and terminal blocks | SIMOTICS GP 1LE1003 / 1LE1001 100% Drop-In | IE3 Premium | Maintains compact frame-to-power ratio with lower electrical operating losses. |
| Siemens 1LG4 / 1LG6 Series (Cast Iron) | Coil breakdown under frequent VFD switching | SIMOTICS SD 1LE1501 / 1LE1503 VFD Inverter Duty | IE3 Premium | Features DURIGNIT IR 2000 insulation system, standard dual-frequency (50/60Hz). |
| Siemens 1MA / 1MJ Series (Hazardous) | Expired regional ATEX / safety certificates | SIMOTICS XP 1MB15 (1LE1 Platform) Certified ATEX/IECEx | IE3 Premium | Ex db / Ex eb flameproof and dust ignition-proof certifications for Zone 1/2/21/22. |
Expert Technical Selection & Worldwide Supply by WeDrive
WE DRIVE HONGKONG LIMITED provides technical sourcing, engineering verification, and global supply for the complete Siemens & Innomotics SIMOTICS 1LE1 Low-Voltage Motor family. Whether your machinery calls for an aluminum foot-mounted unit (1LE1003 B3), a cast-iron flange-mounted unit (1LE1501 B5 / B35), forced ventilation for variable-speed inverter duty, or insulated bearings to protect against shaft currents, our team configures every unit to precise project requirements.
When replacing imported European equipment fitted with discontinued 1LA7, 1LA9, or 1LG4 motors, transitioning to modern 1LE1 units ensures 100% mechanical alignment, lower acoustic noise levels, and extended lubricant service intervals without changing baseplates or couplings. Send us your motor nameplate image or complete 16-digit order code (e.g., 1LE1501-1DB43-4AA4-Z), and our technical team will provide an authentic, fully compliant quotation.
When replacing imported European equipment fitted with discontinued 1LA7, 1LA9, or 1LG4 motors, transitioning to modern 1LE1 units ensures 100% mechanical alignment, lower acoustic noise levels, and extended lubricant service intervals without changing baseplates or couplings. Send us your motor nameplate image or complete 16-digit order code (e.g., 1LE1501-1DB43-4AA4-Z), and our technical team will provide an authentic, fully compliant quotation.
Core Benchmark Model Standard Configurations
- 1LE1003-0DB2 (0.55 kW 4P)
- 1LE1003-0EB0 (1.1 kW 4P)
- 1LE1003-1AB4 (2.2 kW 4P)
- 1LE1003-1BB2 (4.0 kW 4P)
- 1LE1003-1CB0 (5.5 kW 4P)
- 1LE1003-1CB2 (7.5 kW 4P)
- 1LE1501-1DB2 (11.0 kW 4P)
- 1LE1501-1DB4 (15.0 kW 4P)
- 1LE1501-1EB2 (18.5 kW 4P)
- 1LE1501-1EB4 (22.0 kW 4P)
- 1LE1501-2AB5 (37.0 kW 4P)
- 1LE1501-2BB2 (45.0 kW 4P)
- 1LE1501-2CB2 (55.0 kW 4P)
- 1LE1501-2DB2 (90.0 kW 4P)
- 1LE1501-3AB0 (110 kW 4P)
- 1LE1501-3AB4 (160 kW 4P)
- 1LE1601-2AB5 (37 kW IE4)
- 1LE1601-2BB2 (45 kW IE4)
- 1LE1 B5 Flange Execution
- 1LE1 B35 Foot/Flange Motor
