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AC Motors

Low Voltage Motors: Flame Proof Series

Operating & Supply Conditions

FEATURES VALUES/ STANDARDS
Ambient Temperature -10 to +50°C
Altitude Not exceeding 1000mtrs above mean sea level.
Atmosphere Corrosive & Hazardous , Zone-I , DIV; I ,II , IGN TEMP – T3
Relative Humidity Up to 100%
Voltage 415V±10%, 3 pH.
Frequency 50Hz ±5%
Combined Variation 10%
Duty S1 (continuous)
Service factor 1.0

Execution & Features

FEATURES VALUES/ STANDARDS
Starting Resistive start
Permissible starts/hr Cold successive – 4 , Hot successive - 3, Equally spread - 6
Loading at reduced volts 75% Rated volts for 5 minutes
Insulation ST / RT Class `F' / 'F'
Temp. Rise ST / RT Class `B' / 'F'
Direction of rotation Bi-directional
No. Of leads, ST/RT 3 / 3
Degree of protection IP 55
Method of cooling IC 411
T.box position RHS looking from DE
Bearing life
(90 % survival basis)
40,000 working hrs. For direct drive
20,000 working hrs. For belt drive
Vibration Normal class as per IS 12075
Noise As per IS 12065
Construction Foot mounted
Frame sizes SD 180L, SD200L , SD225M , SD250S & M, SD280S & M, SD315, SD315LX & SDX355X
Shaft extension Single cylindrical extension as per IS 1231
Body material Cast iron
T.box material Cast iron up to 225 Frames, mild steel for 250 to 355 Frames
Fan material Cast iron up to 225 Frames, mild steel for 250 to 355 Frames
Accessories
Nil
Paint & shade NC base RAL5012 shade up to 225, Epoxy base RAL5012 above 225
Bearing type
Greasing facility
Open type ball bearings for all frames.
Online greasing facility is for all frames

Dimension Drawings

LE SERIES

GAS GROUP IIA, IIB (DIRECT ENTRY)

FRAME FOOT 'B' FLG MAX. CABLE SIZE
63 32262798 32263398 1x4Cx4sqmm
71
80
90 32262898 32263498 1x4Cx10sqmm
100
112 32262998 32263598 1x3.5Cx25sqmm
132 32263098 32263598 1x3.5Cx25sqmm
160
180 32263198 ---- 2x3.5Cx35sqmm
200 32263798
225S 32263298 ---- 2x3.5Cx50sqmm
225M 32263898
250M 31107397 31107497 2X3.5CX120sqmm
280S 2X3.5CX185sqmm
280M
315 2X3CX240sqmm
355 42203909 ----  


LF SERIES

GAS GROUP IIC

FRAME FOOT MAX. CABLE SIZE
LF63 32216609 1x4Cx4sqmm
LF71
LF80
LF90 32216709 1x4Cx10sqmm
LF100
LF112 32216509 1x3.5Cx25sqmm
LF132
LF160
LF180 32227108 2x3.5Cx35sqmm
LF200
LF225 32228108 2x3.5Cx50sqmm
LF250 32216909 2X3.5CX120sqmm
LF280 2X3.5CX185sqmm
LF315 2X3CX240sqmm

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