Baldor-Reliance IEC ATEX & IECEx Explosion-Proof Motors
The Baldor-Reliance IEC ATEX & IECEx Motor Series (featured model: M3JAA132SMA4 7.5 kW Ex d IIC T4 Gb) represents Baldor's international hazardous area motor portfolio, engineered specifically to satisfy European **ATEX Directive 2014/34/EU** and global **IECEx** explosion protection standards for metric dimensioned export machinery. Designed to combine North American heavy-duty manufacturing rigor with global IEC mounting compliance, these motors feature certified protection schemes including flameproof **Ex d / Ex db IIC T4 Gb** (Zone 1 and Zone 2 gas atmospheres), non-sparking **Ex ec IIC T3 Gc** (Zone 2), and dust-ignition proof **Ex tb / Ex tc IIIC T125°C Db** (Zone 21 and Zone 22). Operating at **IE2 High Efficiency and IE3 Premium Efficiency** levels, Baldor IEC ATEX motors feature rugged cast-iron or lightweight aluminum enclosures, IP55/IP66 washdown protection, PTC thermistor protection standard, and Class H VFD-rated copper winding insulation. Covering output power ratings from 0.12 kW up to 355 kW across IEC metric frame sizes 63 to 355, these motors deliver 100% direct mechanical alignment for international OEMs producing chemical process pumps, offshore skids, industrial mixers, and pharmaceutical centrifuges.
Technical Specifications
| Featured Model | M3JAA132SMA4-ATEX (7.5 kW, 4-Pole 1450 RPM, 400V 50Hz, IEC 132S/M Frame, Ex d IIC T4 Gb, IM B3 Foot Mount) |
|---|---|
| Brand / Manufacturer | Baldor-Reliance (ABB Group) |
| Product Series | IEC Metric ATEX & IECEx Hazardous Location Motors (M3JAA / M3GP Series) |
| IEC Frame Sizes Covered | IEC 63, 71, 80, 90S/L, 100L, 112M, 132S/M, 160M/L, 180M/L, 200L, 225S/M, 250M, 280S/M, 315S/M/L, 355M/L |
| Hazardous Location Ratings | Ex d / Ex db IIC T4 Gb (Flameproof Zone 1) | Ex ec IIC T3 Gc (Non-Sparking Zone 2) | Ex tb IIIC T125°C Db (Dust Zone 21/22) |
| International Certifications | ATEX Directive 2014/34/EU Certified, IECEx Scheme Certified, CCC Ex (China), EAC Ex |
| Energy Efficiency Class | IE2 High Efficiency / IE3 Premium Efficiency according to IEC 60034-30-1 |
| Enclosure & Insulation | IP55 Protection Standard (IP56/IP66 Optional); Class F/H Inverter-Duty VPI Insulation System |
Documentation & Resources
Baldor-Reliance IEC ATEX & IECEx Motor Selection Matrix
Complete selection matrix for Baldor-Reliance IEC metric explosion-proof motors. Review frame sizes, power ratings, certified hazardous zone classifications, and standard order codes:
| Metric Frame Size | 4-Pole Power (kW) | Certified Hazardous Zone | Ex Protection Code | Standard Order Prefix | Mounting Options |
|---|---|---|---|---|---|
| IEC 71 / 80 | 0.25 kW - 0.75 kW | Zone 1 & Zone 2 (Gas) | Ex d / Ex db IIC T4 Gb | M3JAA07... / M3JAA08... | IM B3 Foot / B5 Flange |
| IEC 90S / 90L | 1.1 kW - 1.5 kW | Zone 1 & Zone 2 (Gas) | Ex d / Ex db IIC T4 Gb | M3JAA092... / M3JAA091... | IM B3 Foot / B5 Flange |
| IEC 100L / 112M | 2.2 kW - 4.0 kW | Zone 1 & Zone 2 (Gas) | Ex d / Ex db IIC T4 Gb | M3JAA102... / M3JAA112... | IM B3 Foot / B5 Flange |
| IEC 132S / 132M | 5.5 kW - 7.5 kW | Zone 1 & Zone 2 (Gas) | Ex d / Ex db IIC T4 Gb | M3JAA132... (e.g. 132SMA4) | IM B3 Foot / B5 Flange |
| IEC 160M / 160L | 11.0 kW - 15.0 kW | Zone 1 & Zone 2 (Gas) | Ex d / Ex db IIC T4 Gb | M3JAA162... (e.g. 160MLA4) | IM B3 Foot / B35 Foot-Flange |
| IEC 180M / 180L | 18.5 kW - 22.0 kW | Zone 1 & Zone 2 (Gas) | Ex d / Ex db IIC T4 Gb | M3JAA182... (e.g. 180MLA4) | IM B3 Foot / B35 Foot-Flange |
| IEC 200L / 225M | 30.0 kW - 45.0 kW | Zone 2 (Gas) / Zone 21/22 | Ex ec IIC T3 Gc / Ex tb | M3GP202... / M3GP222... | Cast Iron IM B3 Foot |
| IEC 250M - 355L | 55.0 kW - 355.0 kW | Zone 2 (Gas) / Zone 21/22 | Ex ec IIC T3 Gc / Ex tb | M3GP252... to M3GP352... | Heavy Cast Iron Foot |
Legacy Metric Hazardous Duty Motor Replacement Guide
Older European and Asian metric explosion-proof motors can be directly replaced with current Baldor-Reliance IEC ATEX certified motors with 100% exact shaft center height and flange pilot alignment:
| Legacy Metric Ex Motor Rating | Legacy Rating & Frame | Current Baldor IEC ATEX Equivalent | Key Performance & Safety Upgrades |
|---|---|---|---|
| Standard Efficiency IEC 90L Flameproof | 1.5 kW 1450 RPM IEC 90L | Baldor M3JAA 90L4 100% Drop-In | Full ATEX & IECEx Ex d IIC T4 Gb certification, IE2/IE3 energy efficiency. |
| Standard Efficiency IEC 132M Flameproof | 7.5 kW 1450 RPM IEC 132M | Baldor M3JAA 132SMA4 100% Drop-In | Identical shaft 38mm diameter and keyway, reinforced VPI insulation for VFD duty. |
| Standard Efficiency IEC 160L Flameproof | 15 kW 1450 RPM IEC 160L | Baldor M3JAA 160MLB4 100% Drop-In | Matches standard B3/B5 mounting centers, heavy cast-iron flameproof junction box. |
| Standard Efficiency IEC 200L Non-Sparking | 30 kW 1450 RPM IEC 200L | Baldor M3GP 200MLA4 100% Drop-In | Updated to latest Ex ec IIC T3 Gc standards, reduced temperature rise and lower noise. |
Expert Technical Sourcing & System Integration Notes
When replacing older metric explosion-proof motors in chemical processing skids, offshore oil rigs, or international OEM equipment, switching to current Baldor IEC ATEX series motors guarantees 100% exact physical mounting alignment without modifying mounting base plates or shaft couplings. Simply provide us with your existing motor nameplate serial number or complete order code (e.g., M3JAA 132SMA4 or M3GP 200MLA4), and our technical engineering team will deliver a 100% compliant explosion-proof replacement specification and proposal.
Core Benchmark Model Standard Configurations
- M3JAA 71M4A (0.37 kW Ex d IIC T4)
- M3JAA 80M4A (0.75 kW Ex d IIC T4)
- M3JAA 90S4A (1.1 kW Ex d IIC T4)
- M3JAA 90L4A (1.5 kW Ex d IIC T4)
- M3JAA 100L4A (2.2 kW Ex d IIC T4)
- M3JAA 112M4A (4.0 kW Ex d IIC T4)
- M3JAA 132SMA4 (7.5 kW Ex d IIC T4)
- M3JAA 160MLA4 (11.0 kW Ex d IIC T4)
- M3JAA 160MLB4 (15.0 kW Ex d IIC T4)
- M3JAA 180MLA4 (18.5 kW Ex d IIC T4)
- M3GP 132SMB4 (7.5 kW Ex ec IE3)
- M3GP 160MLB4 (15.0 kW Ex ec IE3)
- M3GP 200MLA4 (30.0 kW Ex ec IE3)
- Baldor IEC 132M Ex d Motor Replacement
- Baldor IEC 160L Ex d Motor Replacement
- Baldor ATEX Certified Flameproof Metric
- Baldor IECEx Zone 1 Gas Explosion Motor
- Baldor Dust Ignition Proof Zone 21 Motor
- Baldor Metric B5 Flange ATEX Motor
- Baldor Metric VFD Duty ATEX Motor
