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2G/2D Zone 1-21 ATEX IEC Metric Motors

Explosive Atmosphere: Guidelines

Directive 94/9/EC - Equipment and protective systems intended for use in potentially explosive atmospheres.

Group Flammable Materials Explosive Atmosphere Protection Level Category Zone
I - Mines & Surface Installations

Firedamp, methane, carbon dust

Continuously Present Very High M1 -
Likely to occur in normal operation High M2 -
II Surface industries & other sites

Gas, Vapors, Dusts

Constantly present or present for long periods. Very High 1G 0 Gas
1D 20 Dust
Likely to occur in normal operation. High 2G 1 Gas
2D 21 Dust
Occasional presence only for a limited amount of time. Normal 3G 2 Gas
3D 22 Dust
Not suited - non ATEX Ex Motor None - -
- -
Temperature Classes   TNSA 3 Phase IEC Metric Motors for Increased Safety ATEX 1/21 2G/2D
Maximum Surface temperature C TN 3 Phase IEC Metric Motors for Normal Safety ATEX 2/22 3G/3D
T1 450 C MNSA 1 Phase IEC Metric Motors for Increased Safety ATEX 1/21 2G/2D
T2 300 C MN 1 Phase IEC Metric Motors for Normal Safety ATEX 2/22 3G/3D
T3 200 C Ingress Protection (IP) Standard for ..SA Series is IP65.  IP Classifications click
T4 135 C For selection assistance, please contact TVT-America engineering department at extension 107.    TVT also offers ATEX rated Speed Reducers and Variable Speed Drives.
T5 100 C
T6 85 C
 

 

TVT's standard IEC-metric motor is designed and certified to ATEX protection class 2-22 3G/3D and Ingress Protection IP55 for our customers safety and peace of mind.  For hazardous locations and applications where an even higher degree of explosion proof design and certification is required we now offer the TNSA for ATEX Class 1/21 2D/2G.

 

MT production in San Giavanni in Persiceto, Bologna, Italy

Offices of M/T motori elettrici, Via Bologna 175, san giovanni in persiceto, bologna, italy  400`7

  • 56A to 355LB frame sizes.
  • B3, B5, B14, B3/B5, B3/B14 standard.
  • 230-400V 50/60hz, 230/460V 50/60hz
  • 0.07 to 430 hp (0.05 to 315kw)
  • 2, 4, 6, & 8 pole standard.
  • Reduced size output flanges available B14, B5
  • Encoders for closed loop vector or servo optional.
  • CL-F standard, CL-H optional.
  • Double Output Shaft optional
  • Special voltage ratings available.
  • Thermal protection optional.
  • Tropical proof winding optional.
  • SINGLE PHASE AVAILABLE (Ex d).

Electric Motors MT, Motori Elettrici M/T

Standards Referenced    
Title EU CENELEC International IEC
Rotating electrical machines EN 60034-1 IEC 60034-1
     Part 1: Rating and Performance
     Part 2-1: Standard methods for determining losses and efficiency from tests. EN 60034-2 IEC 60034-2
     Part 5: Degrees of protection provided by the internal design of rotating electrical machines (IP code) Classification. EN 60034-5 IEC 60034-5
     Part 6: Methonds of cooling (IC Code). EN 60034-6 IEC 60034-6
     Part 7: Classification of types of construction, mounting arrangements and terminal box position (IM Code). EN 60034-7 IEC 60034-7
     Part 9: Noise Limits EN 60034-9 IEC 60034-9
     Part 12: Starting performance of single-speed three-phase cage induction motors. EN 60034-12 IEC 60034-12
     Part 14: Mechanical vibration of certain machines with shaft heights 56mm and higher.  measurement, evaluation and limites of vibration severity. EN 60034-14 IEC 60034-14
General purpose three-phase induction motors having standard dimensions and outputs.  Frame numbers 56 to 315 and flanges numbers 65 to 740. EN 50347 IEC 60072-1
Degrees of protection provided by enclosures (IP Code) EN 60259 IEC 60529
Electrical apparatus for explosive gas atmospheres. EN 60079-0 IEC 60079-0
     Part 0: General Requirements
     Part 1: Flameproof enclosures "d" EN 60079-1 IEC 60079-1
     Part 7: Increased safety "e" EN 60079-7 IEC 60079-7
Explosive atmospheres EN 60069-31 IEC 60079-31
     Part 31: Equipment dust ignition protection by enclosure "t"
  Documentation TNSA Series

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