Siemens & Innomotics SIMOTICS 1MB0 / 1MB1 Explosion-Proof Motors
Brand: Siemens / Innomotics | Series: SIMOTICS XP (1MB1 ATEX Gas Focus & 1MB0 Asian Dust/Gas Range)
Brand Ownership & Regional Lineage Notice:
Following Siemens' corporate restructuring, the entire SIMOTICS XP explosion-proof electric motor business has transitioned into the Innomotics portfolio.
Key Series Focus — 1MB1 Gas Series vs. 1MB0 Dust/Gas Series:
• 1MB1 Series (1MB1543 / 1MB1553): Global / European flagship Gas Explosion-Proof Series (ATEX / IECEx certified Ex d / Ex db IIC T4 Gb) engineered for heavy chemical and oil & gas plants.
• 1MB0 Dust Series (1MB0023 / 1MB0021): Primary Asian / Chinese Combustible Dust Explosion-Proof Series (GB standard Ex tD A21 IP65 T135°C / Ex tb IIIC Db) designed for flour mills, coal handling, and powder processing.
• 1MB0 Gas Series (1MB0013 / 1MB0011): Asian / Chinese GB standard Gas Flameproof Series (Ex d IIBT4 Gb / Ex d IICT4 Gb) offering 100% exact IEC physical mounting interchangeability with European 1MB1 models at significantly lower cost and faster delivery.
Following Siemens' corporate restructuring, the entire SIMOTICS XP explosion-proof electric motor business has transitioned into the Innomotics portfolio.
Key Series Focus — 1MB1 Gas Series vs. 1MB0 Dust/Gas Series:
• 1MB1 Series (1MB1543 / 1MB1553): Global / European flagship Gas Explosion-Proof Series (ATEX / IECEx certified Ex d / Ex db IIC T4 Gb) engineered for heavy chemical and oil & gas plants.
• 1MB0 Dust Series (1MB0023 / 1MB0021): Primary Asian / Chinese Combustible Dust Explosion-Proof Series (GB standard Ex tD A21 IP65 T135°C / Ex tb IIIC Db) designed for flour mills, coal handling, and powder processing.
• 1MB0 Gas Series (1MB0013 / 1MB0011): Asian / Chinese GB standard Gas Flameproof Series (Ex d IIBT4 Gb / Ex d IICT4 Gb) offering 100% exact IEC physical mounting interchangeability with European 1MB1 models at significantly lower cost and faster delivery.
The Siemens & Innomotics SIMOTICS XP 1MB0 / 1MB1 Series provides the ultimate safety engineered motors for explosive gas atmospheres and combustible dust hazards. Featuring heavy flameproof cast iron housings, close-tolerance flame path joints, Class F/B thermal insulation, PTC thermistors, and IP65 dust-tight sealing, these motors cover output ratings from 0.55 kW to 1,000 kW across IEC frame sizes 80 to 450. They are heavily specified in chemical refineries, gas pipelines, offshore platforms, flour mills, grain silos, power plant coal handling, and pharmaceutical manufacturing.
Technical Specifications
| Model / Part Number | 1MB0013-1DB43-4AA4 (15 kW, 4-Pole, Frame 160M, Ex d IIC T4 Gb IE3) |
|---|---|
| Brand Lineage | Siemens → Innomotics (100% Authentic OEM Channel Supply) |
| Gas Protection Marking | Ex d IIBT4 Gb / Ex d IICT4 Gb (Flameproof enclosure for Zone 1 & Zone 2) |
| Dust Protection Marking | Ex tD A21 IP65 T135°C / Ex tb IIIC T135°C Db (Zone 21 & Zone 22 Dust) |
| Temperature Class Limit | T4 (Max surface temperature $135^\circ\text{C}$) / T3 ($200^\circ\text{C}$) / T5 / T6 |
| Efficiency Tiers | IE2 (1MB0011/1MB1521), IE3 Premium (1MB0013/1MB1543), IE4 Super Premium |
| Rated Output Power | 0.55 kW to 1,000 kW (IEC Frame Sizes 80M to 450L) |
| Certifications | Chinese GB (GB 3836.1/2/3/8), European ATEX (2014/34/EU Directive), Global IECEx |
Documentation & Resources
Asian/Chinese GB vs. European ATEX Hazardous Area Standards & Temperature Classes
Electric motors operating in hazardous environments are strictly categorized by zone risk, substance group, and ignition temperature limits. Review the comprehensive technical comparison below designed to assist global engineering teams in model cross-selection:
1. Temperature Class (T-Class) & Surface Temperature Limits
| Temperature Class | Max Motor Surface Temp (°C) | Ignition Temp of Gas/Dust Group (°C) | Typical Industrial Substances Covered |
|---|---|---|---|
| T1 | $450^\circ\text{C}$ | $> 450^\circ\text{C}$ | Methane, Hydrogen, Carbon Monoxide, Ammonia |
| T2 | $300^\circ\text{C}$ | $300^\circ\text{C} < T \le 450^\circ\text{C}$ | Ethylene, Acetylene, Ethanol, Cyclohexane |
| T3 | $200^\circ\text{C}$ | $200^\circ\text{C} < T \le 300^\circ\text{C}$ | Gasoline, Kerosene, Diesel, Jet Fuel, Hydrogen Sulfide |
| T4 Industrial Standard | $135^\circ\text{C}$ | $135^\circ\text{C} < T \le 200^\circ\text{C}$ | Acetaldehyde, Ethyl Ether (Covers 95%+ Chemical Plants) |
| T5 | $100^\circ\text{C}$ | $100^\circ\text{C} < T \le 135^\circ\text{C}$ | Special chemical compounds |
| T6 | $85^\circ\text{C}$ | $85^\circ\text{C} < T \le 100^\circ\text{C}$ | Carbon Disulfide ($CS_2$), High sensitivity explosive gases |
2. Asian GB vs. Global ATEX/IECEx Protection Code Cross-Reference
| Hazard Area Type | Asian GB Standard Protection Code | European ATEX / IECEx Code | Siemens / Innomotics Dedicated Series |
|---|---|---|---|
| Gas Zone 1 (High Risk) | Ex d IIBT4 Gb / Ex d IICT4 Gb | Ex db IIB T4 Gb / Ex db IIC T4 Gb | 1MB1543 (ATEX) / 1MB0013 (Asian GB) |
| Gas Zone 2 (Medium Risk) | Ex nA IICT3 Gc / Ex ec IICT3 Gc | Ex ec IIC T3 Gc (Zone 2) | 1MB1521 (ATEX) / 1MB0011 (Asian GB) |
| Dust Zone 21 (High Risk) | Ex tD A21 IP65 T135°C Db | Ex tb IIIC T135°C Db (Zone 21) | 1MB0023 (Asian Dust IE3) / 1MB1531 |
| Dust Zone 22 (Medium Risk) | Ex tD A22 IP55 T135°C Dc | Ex tc IIIB T135°C Dc (Zone 22) | 1MB0021 (Asian Dust IE2) / 1MB1531 |
Overseas ATEX 1MB1 to Domestic GB 1MB0 Direct Replacement Guide
Domestic 1MB0 series flameproof motors share 100% identical IEC shaft diameters, B3 foot bolt circles, and B5 flange dimensions with European ATEX 1MB1 motors. Imported motors can be directly replaced with cost-effective domestic 1MB0 models:
| Power Rating & Frame Size | Overseas ATEX Model (1MB1543 / 1MB1553) | Domestic GB Equivalent (1MB0013 Gas / 1MB0023 Dust) | Protection Marking | Mechanical Fit & Replacement Notes |
|---|---|---|---|---|
| 15 kW (4-Pole / Frame 160M) | 1MB1543-1DB43 ATEX | 1MB0013-1DB43-4AA4 100% Drop-In | Ex d IIC T4 Gb / IE3 | Direct 1:1 B3 foot & B5 flange match. 42mm shaft diameter. |
| 22 kW (4-Pole / Frame 180L) | 1MB1543-1EB23 ATEX | 1MB0013-1EB23-4AA4 100% Drop-In | Ex d IIC T4 Gb / IE3 | Identical 48mm shaft and terminal box flame path seal. |
| 30 kW / 37 kW (Frame 200L) | 1MB1543-2AB53 ATEX | 1MB0013-2AB53-4AA4 100% Drop-In | Ex d IIC T4 Gb / IE3 | Matches 55mm shaft. Perfect replacement for imported chemical pumps. |
| 45 kW (4-Pole / Frame 225M) | 1MB1543-2BB03 ATEX | 1MB0013-2BB03-4AA4 100% Drop-In | Ex d IIC T4 Gb / IE3 | Identical IEC mounting footprint. Flameproof IP65 junction box. |
| 55 kW (4-Pole / Frame 250M) | 1MB1543-2CB23 ATEX | 1MB0013-2CB23-4AA4 100% Drop-In | Ex d IIC T4 Gb / IE3 | Heavy-duty flameproof cast iron frame. 100% drop-in swap. |
| 75 kW - 200 kW (Frame 280-315) | 1MB1543-2DB23 to 3AA03 ATEX | 1MB0013-2DB23 / 1MB0023 Dust 100% Drop-In | Ex d IIC T4 Gb / IE3 | Matches refinery gas compressor drive footprints. |
Expert Selection & Retrofit Engineering Notes
WE DRIVE HONGKONG LIMITED specializes in providing technical sourcing and global supply solutions for the complete Siemens & Innomotics SIMOTICS XP Explosion-Proof AC Motor family. Whether your chemical or mining facility requires flameproof gas motors for Zone 1 IIC T4 (1MB0013 / 1MB1543), Zone 2 non-sparking motors (1MB0021 / 1MB1521), combustible dust motors for Zone 21 IIIC (1MB0023 / 1MB1531), or high-voltage ex-proof drives, all motors can be supplied pre-configured with PTC thermistors, PT100 winding sensors, anti-condensation heaters, and certified SPM shock-pulse bearing monitoring nipples.
When replacing imported European chemical pumps or compressors equipped with ATEX 1MB1543 or legacy 1MJ6 / 1MJ7 flameproof motors, choosing domestic GB-certified 1MB0013 (gas) or 1MB0023 (dust) models provides substantial price advantages and drastically shorter delivery lead times while maintaining 100% exact physical mounting alignment, Class F/B insulation, and T4 ($135^\circ\text{C}$) thermal ignition protection. Simply send us your existing motor nameplate photograph or model code, and our technical team will deliver a 100% compliant replacement specification and proposal.
When replacing imported European chemical pumps or compressors equipped with ATEX 1MB1543 or legacy 1MJ6 / 1MJ7 flameproof motors, choosing domestic GB-certified 1MB0013 (gas) or 1MB0023 (dust) models provides substantial price advantages and drastically shorter delivery lead times while maintaining 100% exact physical mounting alignment, Class F/B insulation, and T4 ($135^\circ\text{C}$) thermal ignition protection. Simply send us your existing motor nameplate photograph or model code, and our technical team will deliver a 100% compliant replacement specification and proposal.
Core Benchmark Model Standard Configurations
- 1MB0013-1DC43 (15 kW Gas Ex d IIC)
- 1MB0013-1EB23 (22 kW Gas Ex d IIC)
- 1MB0013-2AB53 (30 kW Gas Ex d IIC)
- 1MB0013-2BB03 (45 kW Gas Ex d IIC)
- 1MB0013-2CB23 (55 kW Gas Ex d IIC)
- 1MB0023-1DC43 (15 kW Dust Zone 21)
- 1MB0023-1EB23 (22 kW Dust Zone 21)
- 1MB0023-2AB53 (30 kW Dust Zone 21)
- 1MB0023-2BB03 (45 kW Dust Zone 21)
- 1MB0023-2CB23 (55 kW Dust Zone 21)
- 1MB1543-1DB43 (ATEX Zone 1 IIC)
- 1MB1543-2AB53 (ATEX Zone 1 IIC)
- 1MB1521-1DC43 (ATEX Zone 2 IIB)
- 1MB1531-1DC43 (ATEX Zone 22 Dust)
- Ex d IIBT4 Gb Motor (Zone 1)
- Ex d IICT4 Gb Motor (Zone 1)
- Ex tD A21 IP65 T135°C (Zone 21)
- 1MB0013 B5 Flange Execution
- 1MB0013 B35 Foot/Flange Motor
- VFD Inverter Rated Ex d Motor
