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Pricing Guide for Horizontal Above NEMA Motors - Siemens Industry ...

Pricing Guide for Horizontal Above NEMA Motors - Siemens Industry ...

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<strong>Pricing</strong> <strong>Guide</strong> <strong>for</strong> <strong>Horizontal</strong> <strong>Above</strong> <strong>NEMA</strong> <strong>Motors</strong> ANSP-60000-1112Section 2Part 1Page 20Date 11/12Modifications & AccessoriesInsulation<strong>Motors</strong> are supplied with a class F insulation system as standard.Load InertiaThe table below lists load inertia values which our standard, polyphase motors can accelerate without injurioustemperature rise under the following conditions:1. Rated voltage and frequency applied at the motor terminals.2. During accelerating period, connected load torque shall be equal to, or less than, a torque which varies assquare of the speed and is equal to 100% of full-load torque at rated speed.3. Two successive starts with motor at ambient temperature, or one start with motor not exceeding ratedtemperature. Subsequently, the number of permissible starts will depend upon the time required to acceleratethe load from stand still to full speed, the thermal capacity of the motor, and the time required <strong>for</strong> the motortemperature to return to rated temperature after each such start.Driven equipment requiring higher than standard load inertia may require a larger frame size and/or special rotordesigns. Refer exact requirements to your local <strong>Siemens</strong> Sales representative <strong>for</strong> price and availability.Standard Load Inertia (lb.-ft. 2 ) Exclusive of Motor InertiaHPRPM3600 3000 1800 1500 1200 1000 900 720200 86 135 831 1304 2238 3496 4508 7750250 105 165 1017 1590 2744 4282 5540 9530300 123 193 1197 1874 3239 5060 6540 11270350 141 221 1373 2152 3723 5820 7530 12980400 158 249 1546 2425 4199 6570 8500 14670450 175 275 1714 2692 4666 7300 9460 16320500 191 301 1880 2955 5130 8030 10400 17970600 222 352 2202 3467 6030 9450 12250 21190700 252 400 2514 3964 6900 10840 14060 24340800 280 446 2815 4447 7760 12200 15830 27440900 308 491 3108 4918 8590 13520 17560 304801000 334 534 3393 5380 9410 14820 19260 334701250 395 4073 11380 23390 407401500 451 4712 13260 27350 477501750 502 5310 15060 311702000 548 5880 16780 348602250 590 6420 184402500 628 6930 200303000 694 78603500 746 87004000 785 94604500 813 101205000 831 10720

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