Siemens & Innomotics SIMOTICS XP Dust Ignition-Proof Motors
Brand: Siemens / Innomotics | Series: SIMOTICS XP (Zone 21 Ex tb & Zone 22 Ex tc Dust Explosion-Proof Range)
Combustible Dust Safety Heritage — Siemens to Innomotics:
The SIMOTICS XP dust explosion-proof motor series represents Siemens' dedicated hazardous area electric drive platform engineered specifically for environments containing conductive or non-conductive combustible dusts, flyings, and fibers. Following the corporate transition of low-voltage motors, this specialized portfolio is engineered and manufactured under the independent brand identity Innomotics.
Engineering Protection & Dust Ingress Safety Standards:
• Dual Zone Certification: Fully certified under ATEX, IECEx, and China Ex (CCC-Ex) for Zone 21 (Ex tb IIIC Db) with IP65/IP66 enclosure protection and Zone 22 (Ex tc IIIB Dc) with IP55 protection.
• Maximum Surface Temperature Control: Strictly limits external casing surface temperatures ($T120^\circ\text{C}$, $T130^\circ\text{C}$, or $T135^\circ\text{C}$) under full load and abnormal conditions, ensuring temperatures stay well below the smoldering and cloud ignition points of industrial dusts.
• Robust Cast-Iron & Aluminum Topologies: Built across the 1MB15 series (rugged cast iron for severe chemical/mining atmospheres) and 1MB10 series (die-cast aluminum for grain elevators and textile mills) covering power ratings from 0.09 kW to 315 kW+.
The SIMOTICS XP dust explosion-proof motor series represents Siemens' dedicated hazardous area electric drive platform engineered specifically for environments containing conductive or non-conductive combustible dusts, flyings, and fibers. Following the corporate transition of low-voltage motors, this specialized portfolio is engineered and manufactured under the independent brand identity Innomotics.
Engineering Protection & Dust Ingress Safety Standards:
• Dual Zone Certification: Fully certified under ATEX, IECEx, and China Ex (CCC-Ex) for Zone 21 (Ex tb IIIC Db) with IP65/IP66 enclosure protection and Zone 22 (Ex tc IIIB Dc) with IP55 protection.
• Maximum Surface Temperature Control: Strictly limits external casing surface temperatures ($T120^\circ\text{C}$, $T130^\circ\text{C}$, or $T135^\circ\text{C}$) under full load and abnormal conditions, ensuring temperatures stay well below the smoldering and cloud ignition points of industrial dusts.
• Robust Cast-Iron & Aluminum Topologies: Built across the 1MB15 series (rugged cast iron for severe chemical/mining atmospheres) and 1MB10 series (die-cast aluminum for grain elevators and textile mills) covering power ratings from 0.09 kW to 315 kW+.
The Siemens & Innomotics SIMOTICS XP Dust Explosion-Proof Motor Series provides fail-safe explosion protection, premium energy efficiency (IE2, IE3, and IE4), and reliable drive power in dusty process industries. Designed for direct online (DOL) grid operation and variable frequency drive (VFD) inverter duty up to 690V, these motors feature high-integrity radial shaft seals, special gasketed terminal boxes, Class F insulation utilized to Class B thermal limits, and optional PTC thermistors or Pt100 RTDs for continuous winding temperature supervision. They are heavily specified worldwide in grain storage silos, flour mills, animal feed plants, sugar refineries, coal pulverizing plants, plastics processing, pharmaceutical tableting, and wood finishing facilities.
Technical Specifications
| Model / Part Number | 1MB1523-1DB43-4AA4 (15 kW, 4-Pole, Frame 160L, IE3 Cast Iron, Zone 21 Ex tb IIIC T120°C) |
|---|---|
| Brand Lineage | Siemens → Innomotics (100% Authentic Hazardous Area Supply) |
| Product Series | SIMOTICS XP 1MB1523 (Zone 21 Ex tb, IE3) & SIMOTICS XP 1MB1533 (Zone 22 Ex tc, IE3) |
| Combustible Dust Classifications | Zone 21: II 2D Ex tb IIIC T120°C Db IP65 | Zone 22: II 3D Ex tc IIIB T120°C Dc IP55 |
| Applicable Dust Groups | Group IIIA (Combustible flyings), Group IIIB (Non-conductive dusts), Group IIIC (Conductive dusts) |
| Rated Output Power Range | 0.09 kW to 315 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) |
| Enclosure Protection & Ingress | IP65 (Zone 21 standard) / IP55 or IP65 (Zone 22); heavy-duty labyrinth / gamma shaft oil seals |
Siemens & Innomotics Dust Explosion-Proof Motor Selection Table (IE3 Premium, 4-Pole)
Procurement selection directory for Siemens & Innomotics SIMOTICS XP Dust Ignition-Proof Motors. Review primary ratings for heavy combustible dust 4-Pole (1500 rpm at 50Hz, 400V/690V) applications. Identify exact IEC frame sizes (80M to 315L), rated power in kW, certified explosion protection ratings, and official manufacturer order codes:
| Brand Lineage | Protection Tier | Hazardous Zone | Frame Size | Rated Power | Poles | Order Number / Model Code |
|---|---|---|---|---|---|---|
| Siemens / Innomotics | SIMOTICS XP 1MB1523 | Zone 21 (Ex tb) | 80M | 0.55 kW | 4 | 1MB1523-0DB2□-□□□□ |
| Siemens / Innomotics | SIMOTICS XP 1MB1523 | Zone 21 (Ex tb) | 80M | 0.75 kW | 4 | 1MB1523-0DB3□-□□□□ |
| Siemens / Innomotics | SIMOTICS XP 1MB1523 | Zone 21 (Ex tb) | 90S | 1.10 kW | 4 | 1MB1523-0EB0□-□□□□ |
| Siemens / Innomotics | SIMOTICS XP 1MB1523 | Zone 21 (Ex tb) | 90L | 1.50 kW | 4 | 1MB1523-0EB4□-□□□□ |
| Siemens / Innomotics | SIMOTICS XP 1MB1523 | Zone 21 (Ex tb) | 100L | 2.20 kW | 4 | 1MB1523-1AB4□-□□□□ |
| Siemens / Innomotics | SIMOTICS XP 1MB1523 | Zone 21 (Ex tb) | 100L | 3.00 kW | 4 | 1MB1523-1AB5□-□□□□ |
| Siemens / Innomotics | SIMOTICS XP 1MB1523 | Zone 21 (Ex tb) | 112M | 4.00 kW | 4 | 1MB1523-1BB2□-□□□□ |
| Siemens / Innomotics | SIMOTICS XP 1MB1523 | Zone 21 (Ex tb) | 132S | 5.50 kW | 4 | 1MB1523-1CB0□-□□□□ |
| Siemens / Innomotics | SIMOTICS XP 1MB1523 | Zone 21 (Ex tb) | 132M | 7.50 kW | 4 | 1MB1523-1CB2□-□□□□ |
| Siemens / Innomotics | SIMOTICS XP 1MB1523 | Zone 21 (Ex tb) | 160M | 11.0 kW | 4 | 1MB1523-1DB2□-□□□□ |
| Siemens / Innomotics | SIMOTICS XP 1MB1523 | Zone 21 (Ex tb) | 160L | 15.0 kW | 4 | 1MB1523-1DB4□-□□□□ |
| Siemens / Innomotics | SIMOTICS XP 1MB1523 | Zone 21 (Ex tb) | 180M | 18.5 kW | 4 | 1MB1523-1EB2□-□□□□ |
| Siemens / Innomotics | SIMOTICS XP 1MB1523 | Zone 21 (Ex tb) | 180L | 22.0 kW | 4 | 1MB1523-1EB4□-□□□□ |
| Siemens / Innomotics | SIMOTICS XP 1MB1523 | Zone 21 (Ex tb) | 200L | 30.0 kW | 4 | 1MB1523-2AB4□-□□□□ |
| Siemens / Innomotics | SIMOTICS XP 1MB1523 | Zone 21 (Ex tb) | 225S | 37.0 kW | 4 | 1MB1523-2BB0□-□□□□ |
| Siemens / Innomotics | SIMOTICS XP 1MB1523 | Zone 21 (Ex tb) | 225M | 45.0 kW | 4 | 1MB1523-2BB2□-□□□□ |
| Siemens / Innomotics | SIMOTICS XP 1MB1523 | Zone 21 (Ex tb) | 250M | 55.0 kW | 4 | 1MB1523-2CB2□-□□□□ |
| Siemens / Innomotics | SIMOTICS XP 1MB1523 | Zone 21 (Ex tb) | 280S | 75.0 kW | 4 | 1MB1523-2DB0□-□□□□ |
| Siemens / Innomotics | SIMOTICS XP 1MB1523 | Zone 21 (Ex tb) | 280M | 90.0 kW | 4 | 1MB1523-2DB2□-□□□□ |
| Siemens / Innomotics | SIMOTICS XP 1MB1523 | Zone 21 (Ex tb) | 315S | 110 kW | 4 | 1MB1523-3AB0□-□□□□ |
| Siemens / Innomotics | SIMOTICS XP 1MB1523 | Zone 21 (Ex tb) | 315M | 132 kW | 4 | 1MB1523-3AB2□-□□□□ |
| Siemens / Innomotics | SIMOTICS XP 1MB1523 | Zone 21 (Ex tb) | 315L | 160 kW | 4 | 1MB1523-3AB4□-□□□□ |
| Siemens / Innomotics | SIMOTICS XP 1MB1523 | Zone 21 (Ex tb) | 315L | 200 kW | 4 | 1MB1523-3AB5□-□□□□ |
| Siemens / Innomotics | SIMOTICS XP 1MB1533 | Zone 22 (Ex tc) | 160L | 15.0 kW | 4 | 1MB1533-1DB4□-□□□□ |
| Siemens / Innomotics | SIMOTICS XP 1MB1533 | Zone 22 (Ex tc) | 200L | 30.0 kW | 4 | 1MB1533-2AB4□-□□□□ |
| Siemens / Innomotics | SIMOTICS XP 1MB1533 | Zone 22 (Ex tc) | 315L | 200 kW | 4 | 1MB1533-3AB5□-□□□□ |
Documentation & Technical Catalogs
Combustible Dust Zone Classification & Motor Protection Architecture
Engineering comparison between Zone 21 and Zone 22 dust ignition protection requirements:
| Hazardous Dust Zone | Explosion Protection Concept | Required Ingress Protection | Conductive Dust Suitability | Typical Plant Operating Locations |
|---|---|---|---|---|
| Zone 21 (Category 2D) | Ex tb IIIC T120°C Db (Protection by enclosure) | IP65 minimum (IP66 optional) | Approved for Group IIIC (conductive) and Group IIIB (non-conductive) | Inside silos, transfer hoppers, bag filter housings, milling equipment where dust clouds occur occasionally in normal operation. |
| Zone 22 (Category 3D) | Ex tc IIIB T120°C Dc (Protection by enclosure) | IP55 standard (IP65 optional) | Approved for Group IIIB (non-conductive) and Group IIIA (combustible flyings) | Secondary process areas, bulk storage packaging halls, conveyor galleries where dust clouds occur only rarely and briefly. |
Legacy Siemens Dust-Ex Motors to SIMOTICS XP Migration Guide
Older generation Siemens dust explosion-proof motors can be upgraded directly to current Innomotics 1MB15 series units:
| Legacy Dust-Ex Series | Obsolescence / Maintenance Challenge | Direct Modern SIMOTICS XP Replacement | Certified Protection Mode | Retrofit & Mechanical Compatibility Notes |
|---|---|---|---|---|
| Siemens 1LA7 / 1LA9 with Option M34/M35 | Non-compliant IE1 efficiency; degrading seal integrity | SIMOTICS XP 1MB1023 / 1MB1033 100% Drop-In | Zone 21 (Ex tb) / Zone 22 (Ex tc) | Identical shaft centerline height, shaft diameter, and B3/B5/B14 bolt patterns. |
| Siemens 1LG4 / 1LG6 with Dust Protection | Older terminal box gaskets; lack of updated IECEx files | SIMOTICS XP 1MB1523 / 1MB1533 Heavy Cast Iron | Zone 21 / 22 (IE3 Premium) | Rugged cast-iron casing, certified high-durability seals, pre-drilled cable entries. |
| Non-Certified Standard Motors with Dust Covers | Severe explosion risk; regulatory safety violation | SIMOTICS XP 1MB1 Series Full ATEX/IECEx | Officially Certified Dust-Ex | Full manufacturer compliance dossier, nameplate markings, and global insurance acceptance. |
Expert Dust-Ex Sourcing & Project Delivery by WeDrive
WE DRIVE HONGKONG LIMITED provides technical sizing, certificate verification, and global supply for the complete Siemens & Innomotics SIMOTICS XP Dust Ignition-Proof Motor portfolio. Whether your facility operates flour mill elevators requiring cast-iron foot-mounted units (1MB1523 B3), chemical powder blenders needing flange mountings (1MB1523 B5 / B35), variable-speed conveyor drives with certified PTC thermistor monitoring, or extreme outdoor coal-handling fans requiring IP66 sealing, our engineering team ensures total compliance with plant safety files.
Modernizing to current SIMOTICS XP dust explosion-proof motors eliminates combustible dust ignition hazards while upgrading operating efficiency to IE3 or IE4 standards without costly structural modifications. Provide us with your current motor nameplate photograph, full order code, or required zone specifications, and our technical sales engineers will deliver an authentic OEM quotation with full international test certificates.
Modernizing to current SIMOTICS XP dust explosion-proof motors eliminates combustible dust ignition hazards while upgrading operating efficiency to IE3 or IE4 standards without costly structural modifications. Provide us with your current motor nameplate photograph, full order code, or required zone specifications, and our technical sales engineers will deliver an authentic OEM quotation with full international test certificates.
Core Benchmark Model Standard Configurations
- 1MB1523-0DB2 (0.55 kW Zone 21)
- 1MB1523-0EB0 (1.10 kW Zone 21)
- 1MB1523-1AB4 (2.20 kW Zone 21)
- 1MB1523-1BB2 (4.00 kW Zone 21)
- 1MB1523-1CB0 (5.50 kW Zone 21)
- 1MB1523-1CB2 (7.50 kW Zone 21)
- 1MB1523-1DB2 (11.0 kW Zone 21)
- 1MB1523-1DB4 (15.0 kW Zone 21)
- 1MB1523-1EB2 (18.5 kW Zone 21)
- 1MB1523-1EB4 (22.0 kW Zone 21)
- 1MB1523-2AB4 (30.0 kW Zone 21)
- 1MB1523-2BB2 (45.0 kW Zone 21)
- 1MB1523-2CB2 (55.0 kW Zone 21)
- 1MB1523-2DB2 (90.0 kW Zone 21)
- 1MB1523-3AB0 (110 kW Zone 21)
- 1MB1523-3AB4 (160 kW Zone 21)
- 1MB1523-3AB5 (200 kW Zone 21)
- 1MB1533-1DB4 (15.0 kW Zone 22)
- 1MB1533-2AB4 (30.0 kW Zone 22)
- 1MB1533-3AB5 (200 kW Zone 22)
