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Standards • IEC 34 - IEC 72 |
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Insulation • Class H (180°C) |
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Balance • IEC 34-14 grade 'N' standard • Reduced vibration levels on request |
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Temperature rise • Class F (155°C) |
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Overload capacity • 1.6 x FLT for 15 seconds every 5 minutes • 2.0 x FLC for 30 seconds every 30 minutes • 2.0 x FLC - 1.9 x FLT at rated flux • Overloads must be followed by periods of reduced loading in order to maintain an r.m.s. load cycle of 1.0 x FLC • Other duty cycles available on request |
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Dynamic loading • Suitable for di/dt of 200 x FLC/sec • 2.0 x FLC for 30 seconds every 30 minutes • Higher levels considered on request |
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Standstill The permissable currents during standstill operation with the cooling air applied are: • 2.0 x FLC for 10 seconds • 1.0 x FLC for 30 seconds • 0.5 x FLC for 90 seconds • 0.2 x FLC for 300 seconds • 0.15 x FLC for 600 seconds |
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Terminal box position • Right hand side viewed from d-end • Left hand side or top mounting available on request |
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Blower position • Top mounted at d-end • Other positions available on request |
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Filter • Filter available on request |
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Bearings • Grease lubricated ball bearings suitable for direct drive • For belt drive or side loading, please contact our sales offices |
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Heat exchangers - Air/water (IC 86W): • Air/water exchangers are especially recommended for polluted environment • Standard is for clean water • For corrosive water on request Mounting: • Position on top of motor as standard • Other positions and for remote loading, please contact our sales offices Water inlet/outlet: • DIN2566 - PN16 • Other connection forms available on request • Water connections are on the opposite side to the terminal box • For other positions, please contact our sales offices Water parameters: • Inlet temperature maximum 25°C • Inlet pressure maximum 3,45 bars • Pressure drop maximum 35 kPa • A temperature rise of 8 to 10°C must be expected |
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Heat exchangers - Air/air (IC 666): • Air/air exchangers are recommended where water is not available for cooling purposes • The output of a motor with air/air exchanger will be approximately 20% and the speed will be increased by approximately 9% compared to cooling form IC06 • Motor output data available on request Mounting: • Position on top of motor as standard • Other positions available on request • Two constant speed ac fan motors on the heat exchanger side provide air circulation for the external and internal circuits |
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Protection Standard: • Water flow switch (IC86W) • Air pressure switch (IC666) • Internal air circuit filter • Air leakage replacement filter • Air pressure switch internal The internal air pressure switch indicates air flow failure only, it does not react to a reduction in air flow due to contaminated filter |
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Options • Differential pressure switch across filter monitoring contamination • Water flow control valve for motors used continuously in a lightly loaded condition (IC86W) |
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Footnote • Detail heat exchanger information supplied upon request • For motors on light load or with low inlet water temperature, a temperature regulated water volume control valve is recommended to avoid condensation in the cooling air circuit, minimise water consumption and reduce the risk of too cold commutator running conditions |
| Frame | Inertia J - kgm2 |
Max. mechanical speed (min-1) |
| LAKC 4355A LAKC 4355B LAKC 4355C |
14.3 15.8 17.3 |
2500 2500 2500 |
| LAKC 6400A LAKC 6400B LAKC 6400C |
23.0 28.8 36.3 |
1800 1800 1800 |
| LAKC 6500A LAKC 6500B LAKC 6500C LAKC 6500D |
69.5 87.1 109.8 127.0 |
1800 1800 1800 1800 |
| LAKC 6560A LAKC 6560B LAKC 6560C LAKC 6560D |
145.0 165.0 187.5 207.5 |
1200 1200 1200 1200 |
| Frame | Air volume m3/h |
Pressure drop in motor N/m2 |
| LAKC 4355 | 7200 | 1670 |
| LAKC 6400 | 12600 | 1470 |
| LAKC 6500 | 18000 | 1520 |
| LAKC 6560 | 21600 | 1860 |
| Frame | KW | FKC(A) |
| LAKC 4355 | 5.5 | 11.9 |
| LAKC 6400 | 11.0 | 23.0 |
| LAKC 6500 | 11.0 | 23.0 |
| LAKC 6560 | 18.5 | 39 |
| Frame | Commutator End | Drive End |
| LAKC 4355 | 6228 C3 | 6228 C3 |
| LAKC 6400 | 6230 C3 | 6230 C3 |
| LAKC 6500 | 6232 C3 | 6234 C3 |
| LAKC 6560 | 6232 C3 | 6244 C3 |
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