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FCR asynchronous brake motorsfor atmospheres containing explosive dustLSPX --- FCR

+ 10 % – 10 % at 50 Hz. Finish : aluminium casing Mains supply :

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Corrosive protected screws. Shaft and flange protection against atmospheric corrosion. Individual anti-shock packaging. • Standard construction according to IEC 38 that is : – 230/400 V + 10 % – 10 % at 50 Hz ; – 400 V

CATEGORY General ZONE 21

– 3-phase asynchronous brake motors , LSPX series, according to IEC 34, 72, EN 50281 • Single speed : or , 50 Hz. – , 50 Hz.• Other polarities and 2 speed : upon request (0.09 to 9 kW power, 71 to 160 mm frame size, general use, PAM or Dahlander; 400 V

0.25 to 15 kW

power, 71 to 160 mm frame size, 4 poles 230/400 V or 400 V

IP65 protection

– Variable speed motors : • fitted with thermal probes in the winding (compulsory), • according to advice • forced ventilation is forbidden

Description of LSPX --- FCR three phase aluminium brake motors

II 2D T

MAX

125 °C

Designation Material Comments

Finned housing Aluminium alloy - with cast feet or without feet- pressure die-cast • fixing holes for foot mounting• 132 and 112 lifting rings, optional - earth terminal, optional Stator Insulated low-carbon magnetic steel with laminations Cathode copper - the carbon content assures the stability of characteristics over time- sheets assembled by electric welding - heat shrink assembly in order to provide mechanical resistance - semi-enclosed slots - class F insulation system Rotor Insulated low-carbon magnetic steel with laminations- inclined slots- squirrel cage pressure die cast in aluminium (or alloys for special applications) - heat shrinked mounting on the shaft - dynamically balanced N class rotor - 1/2 key Shaft Steel- shaft end fitted with screw and washer - closed keyway End shields Cast iron- front and rear, assembled by mounting shaft Bearings - dust and damp protected ball bearings, greased for life, with the following mounting: • blocked at rear to guarantee precise positioning of the load, • heavily preloaded front bearing to eliminate axial oscillation Seals Synthetic rubber - DE and NDE lip seals for IP 65 protection on the shaft Fan Aluminium or cast iron alloy - 2 directions of rotation : straight blades Fan cover Steel sheet- on request, fitted with a drip cover for operation in vertical position, shaft facing down Terminal box Aluminium alloy- IP 65 - 4 positions for flange mount motors, opposite the feet for foot mount or foor and flange for frame size 80- fitted with a 6 steel terminal board and lock nuts - supplied with cable fixed brass cable gland - 1 earth terminal in each terminal box Painting - system I a, RAL 1007 paint finish (yellow) - resistance to saline mist : 72 h (according to NFX 41002)

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