MANUAL Large CP compressor e q u i p p e d w i t h A l l e n - B r a d l e y Bulletin 6 4 0 resistance starter. M o t o r is s p e e d e d u p by s l o w l y r a i s i n g starter lever. N o cur rent i n r u s h — v e l v e t smooth start.
Trane a i r - c o n d i t i o n i n g compressor e q u i p p e d w i t h A l l e n - B r a d l e y Bulle tin 7 4 0 a u t o m a t i c resistance starter. Two-step starter smooths out current inrush—prevents lamp flicker.
AUTOMATIC
EASY O N THE L I N E . . . EASY O N THE MOTOR No jerks or jolts—Satisfies the power company Allen-Bradley compression resistance starters a f f o r d a neat solution for smoothing out the starting current and torque of heavily l o a d e d squirrel cage motors. Graphite disc resis tors, available only in Allen-Bradley compression starters, control the starting current and torque with velvet smooth ness . . . and without lamp flicker. These jerkless starters prevent d a m a g e or undue stress on belts, chain drives, or gears. They are equipped with d e p e n d a b l e a n d accurate overload relays. Available for squirrel cage motors up to 200 hp, 2 2 0 4 4 0 - 5 5 0 v. Send for Bulletins 6 4 0 and 7 4 0 , today. Allen-Bradley Co. 1346 S. Second St. Milwaukee 4, Wis.
In Canada— Allen-Bradley Canada Ltd. Gait, Ont.
ALLEN-BRADLEY BULLETIN 7 4 0 a u t o m a t i c resistance starter. S t a r t i n g resistors are l o c a t e d b e h i n d the t w o contactors.
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For further information, circle number 20 A on Readers' Service Card, page 139 A 20 A
INDUSTRIAL A N D ENGINEERING CHEMISTRY
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