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IEC Squirrel-Cage Motors Explosion-proof motors Orientation 4 ■ Technical specifications (continued) Zone 2 with type of protection EEx nA/Ex nA (non-sparking) • Zone 2 acc. to IEC/EN 60079-15 The duty types are: - Design for Zone 2 for mains-fed operation (order code M72) - Design for Zone 2 for mains-fed operation, with derating (order code M73) 1LA/1LG motors are modified for this purpose in the "Non-sparking" design and are suitable for use in hazardous areas of Zone 2 for temperature classes T1 to T3. The maximum surface temperature that can occur during operation must lie below the limit temperature of the respective temperature class. The ventilation system must be in accordance with DIN EN 50014. An external earthing terminal is fitted to the motors. The connection box is similar to the EExe design. Please enquire in the case of • Use in accordance with temperature class F • For pole-changing versions For motors in the "Non-sparking" version, a conformity declaration is available from a recognised testing authority. Ambient temperature –20 to +60 °C, whereby derating applies from 40 °C upwards. Other temperatures are available on request. The rating plate or the extra rating plate contains the text: Ex nA II T3 II 3G EEx nA II T3 IEC/EN 60079-15 and number of the "Conformity declaration" The motors do not have a rated voltage range stamped on the rating plate. Protection against dust explosions in Zones 21 and 22 The distinction between Zones 21 and 22 is as follows: • Zone 21 according to IEC 61241, EN 50281 1) - Design for Zone 21, as well as Zone 22 for conducting dust (IP65) for mains-fed operation (order code M34) - Design for Zone 21, as well as Zone 22 for conducting dust (IP65) for converter-fed operation, derating (order code M38 • Zone 22 according to IEC 61241, EN 50281 - Design for Zone 22 for non-conducting dust (IP55) for mainsfed operation (order code M35) - Design for Zone 22 for non-conducting dust (IP55) for converter-fed operation, derating (order code M39) The 1LA/1LG motors are modified for this purpose for use in zones subject to dust explosion hazards. The surface temperature is ˆ125 °C at rated duty. An external earthing terminal and an external metal fan are fitted to the motors. In the design for Zone 21, the connection box is similar to the EExe design. Pole-changing versions are not possible for Zone 21 – they are possible for Zone 22 on request. Certification: • Zone 21: EC type-test certificate (ATEX), issued by the DMT testing authority (Deutsche Montan-Technologie) and EC declaration of conformity. • Zone 22: EC declaration of conformity Identification on the rating plate: Zone 21: II 2D T125 °C Zone 22: II 3D T125 °C Ambient temperature –20 °C to +60 °C, whereby derating applies from 40 °C upwards. Other temperatures are available on request. Generally, the following is valid: All Ex motors in vertical type of construction with shaft extension pointing down must have a protective cover. Ex motors cannot be designed in accordance with UL and CSA. The certificates for the motors for hazardous areas are stored with the documentation in the SD configurator tool for low-voltage motors. For converter-fed operation, Ex motors must always be monitored using PTC thermistors. Certified tripping units are required for this purpose, see <strong>Catalog</strong> LV1. Comprehensive operating instructions and the declaration of conformity are supplied with Ex motors. In the case of non-standard 1LA8 and 1PQ8 motors, the bearing temperature must be monitored (order code A72). Overview of the technical specifications Explosion-proof motors - The technology at a glance Motors Type of protection "e" Type of protection "d" Type of protection "n" Dust explosion protection Frame size 63 M ... 315 L 71 M ... 450 63 M ... 450 56 M ... 450 L Output range 0.12 to 160 kW 0.25 to 950 kW 0.09 to 1000 kW 0.06 to 1000 kW Number of poles 2/4/6 2/4/6/8 2/4/6/8 2/4/6/8 Temperature class T1 - T3 T1 - T4 T3 – Degree of protection II 2 G EEx e II acc. to IEC/EN 60079-0 IEC/EN 60079-7 II 2 G EEx de II acc. to IEC/EN 60079-0 IEC/EN 60079-1 Ex nA II 3 G EEx nA acc. to IEC/EN 60079-15 Zone 21: II 2D IP 65 T 125 °C 2) Zone 22: II 3D IP 55 T 125 °C acc. to EN 50281/IEC 61241 Directive 94/9/EG, ATEX 95 94/9/EG, ATEX 95 94/9/EG, ATEX 95 94/9/EG, ATEX 95 Protection class IP55 IP55 IP55 Zone 21: IP65 Zone 22: IP55 Voltages All commonly used voltages All commonly used voltages All commonly used voltages All commonly used voltages Frequency 50 and 60 Hz 50 and 60 Hz 50 and 60 Hz 50 and 60 Hz Type of construction Casing All common types of construction FS 63 M ... 160 L aluminium FS100L...315Lcast-iron All common types of construction FS 71 M ... 315 L cast-iron FS 355 ... 450 steel All common types of construction FS 63 M ... 160 L aluminium FS 100 L ... 450 cast-iron All common types of construction FS 56 M ... 225 M aluminium FS 100 L ... 450 1) cast-iron Cooling method Surface-cooled Surface-cooled Surface-cooled Surface-cooled Temperature class F used acc. to B F used acc. to B F used acc. to B F used acc. to B 3) Insulation system DURIGNIT IR 2000 DURIGNIT IR 2000, converter-compatible up to 500 V, 690 V on request DURIGNIT IR 2000, converter-compatible up to 500 V, 690 V on request DURIGNIT IR 2000, converter-compatible up to 500 V, 690 V on request 1) 2) Zone 21 only up to frame size 315 L Zone 21 for “Non-standard motors frame size 315 and above” only up to frame size 315 possible. 3) For “Non-standard motors frame size 315 and above” temperature class F utilized according to F. 4/4 Siemens D 81.1 · 2006
IEC Squirrel-Cage Motors Explosion-proof motors Orientation ■ Selection and ordering data Preliminary selection of the motor according to motor type/series, speed or number of poles, frame size, rated output, rated torque, rated speed and rated current Self-ventilated motors in Zone 1 with type of protection "e" (EEx e II Increased safety) Speed Frame size Rated output Rated speed Rated torque Rated current at 400 V rpm kW rpm Nm A Aluminium series 1MA7 50 Hz 3000, 2-pole 63 M ... 160 L 0.18 ... 16 2810 ... 2910 0.61 ... 53 0.55 ... 30.0 4/12 ... 4/13 1500, 4-pole 63 M ... 160 L 0.12 ... 13.5 1375 ... 1465 0.83 ... 88 0.52 ... 27 4/14 ... 4/15 1000, 6-pole 71 M ... 160 L 0.25 ... 9.7 850 ... 965 2.8 ... 96 0.81 ... 21 4/14 ... 4/15 Cast-iron series 1MA6 50 Hz 3000, 2-pole 100 L ... 315 L 2.5 ... 165 2865 ... 2986 8.3 ... 528 5.3 ... 280 4/16 ... 4/19 1500, 4-pole 100 L ... 315 L 2 ... 165 1420 ... 1492 14 ... 1061 4.5 ... 305 4/20 ... 4/23 1000, 6-pole 100 L ... 315 L 1.3 ... 135 935 ... 991 13 ... 1300 3.35 ... 240 4/24 ... 4/27 Detailed selection and ordering data Page 4 Self-ventilated motors in Zone 1 with type of protection "d" (EEx de IIC explosion-proof enclosure) Speed Frame size Rated output Rated speed Rated torque Rated current at 400 V rpm kW rpm Nm A Cast-iron series 1MJ6 50 Hz 3000, 2-pole 71 M ... 200 L 0.37 ... 37 2750 ... 2945 1 ... 120 0.98 ... 64 4/28 ... 4/29 1500, 4-pole 71 M ... 200 L 0.25 ... 30 1325 ... 1465 1 ... 196 0.78 ... 55 4/30 ... 4/31 1000, 6-pole 71 M ... 200 L 0.25 ... 22 870 ... 75 2 ... 215 0.82 ... 42.5 4/32 ... 4/33 750, 8-pole 90 L ... 200 L 0.37 ... 15 655 ... 725 5 ... 198 1.16 ... 32 4/34 ... 4/35 Cast-iron series 1MJ7 50 Hz 3000, 2-pole 225 M ... 315 M 45 ... 132 2955 ... 2980 145 ... 423 77 ... 225 4/28 ... 4/29 1500, 4-pole 225 S ... 315 M 37 ... 132 1475 ... 1486 240 ... 848 67 ... 232 4/30 ... 4/31 1000, 6-pole 225 M ... 315 M 30 ... 90 978 ... 988 293 ... 870 56 ... 162 4/32 ... 4/33 750, 8-pole 225 S ... 315 M 18.5 ... 75 725 ... 738 244 ... 970 37.5 ... 140 4/34 ... 4/35 Steel series 1MJ8 50 Hz 3000, 2-pole 355 315 ... 400 2982 ... 2985 1009 ... 1279 530 ... 655 4/36 ... 4/37 1500, 4-pole 355 280 ... 400 1485 ... 1491 1795 ... 2561 495 ... 690 4/36 ... 4/37 1000, 6-pole 355 250 ... 315 993 ... 994 2403 ... 3027 440 ... 560 4/38 ... 4/39 750, 8-pole 355 200 ... 250 744 2566 ... 3206 370 ... 466 4/38 ... 4/39 Steel/cast-iron series 1MJ1 50 Hz 3000, 2-pole 315 M ... 450 160 ... 900 2977 ... 2985 515 ... 2879 280 ... 915 4/36 ... 4/37 1500, 4-pole 315 M ... 450 160 ... 950 1485 ... 1493 1030 ... 6076 285 ... 1355 4/36 ... 4/37 1000, 6-pole 315 M ... 450 110 ... 800 990 ... 995 1060 ... 7676 195 ... 1240 4/38 ... 4/39 750, 8-pole 315 M ... 450 90 ... 670 740 ... 746 1160 ... 8579 175 ... 1210 4/38 ... 4/39 Detailed selection and ordering data Page Siemens D 81.1 · 2006 4/5
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Catalog D 81.1 • 2006 MOTORS Low-
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Low-Voltage Motors IEC Squirrel-Cag
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Siemens D 81.1 · 2006 3
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and production areas to shipping. T
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DATE: EMPLOYEE COST CENTER PAY PERI
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Introduction 1 1/2 Guide to selecti
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IEC Squirrel-Cage Motors Introducti
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Standard motors up to frame size 31
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■ Overview (continued) Efficiency
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■ Integration MICROMASTER 411/ CO
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IEC Squirrel-Cage Motors Standard m
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■ Overview (continued) Taper pins
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Non-standard motors frame size 315
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■ Overview Slide rails with fixin
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■ Overview (continued) Notes on t
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Motors operating with frequency con
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IEC Squirrel-Cage Motors Motors ope
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Pump motors 6 6/2 Orientation 6/2 O
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IEC Squirrel-Cage Motors Pump motor
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Fan motors 7 7/2 Orientation 7/2 Ov
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IEC Squirrel-Cage Motors Fan motors
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p Standard version † With no extr
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■ Dimensional drawings Aluminium
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■ Dimensional drawings Cast-iron
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■ Dimensional drawings Aluminium
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Compressor motors 8 8/2 Orientation
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IEC Squirrel-Cage Motors Compressor
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Smoke-extraction motors 9 9/2 Orien
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Special versions Self-ventilated mo
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Special versions p Standard version
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Marine motors 10 10/2 Orientation 1
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IEC Squirrel-Cage Motors Marine mot
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■ Overview Most non-standard moto
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Standard motors up to frame size 31
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Appendix 11 11/2 Overview of produc
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IEC Squirrel-Cage Motors Appendix O
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IEC Squirrel-Cage Motors Appendix T
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IEC Squirrel-Cage Motors Appendix A
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IEC Squirrel-Cage Motors Appendix C
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IEC Squirrel-Cage Motors Appendix S
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Section 1 Section 2 IEC Squirrel-Ca
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IEC Squirrel-Cage Motors Appendix I
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Catalogs of the Automation and Driv
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Low-Voltage Motors Squirrel-Cage Mo
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