Hubbell 4220 دليل المستخدم

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SPECIFICATIONS
4220
June 1994
Repl.: October 1984
EUCLID™ AC & DC POWER LIMIT SWITCHES
SIZE 2, 3, 4, 5, 6, & 6A
D-C Limit Switches are devices
that are used to interrupt the main
power circuit, setting up a dynamic
braking circuit that quickly stops
A-C Limit Switches are similar in
construction to D-C Limit Switches.
The difference is in operation. A-C
Limit Switches disconnect two
power lines to the hoist motor
which then is stopped by a ma g -
♦
♦ Direct action contact ope n -
♦ n
♦
♦
♦

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Description Positive trigger lock-out Quick make-and-brake contacts, which directly handle the motor circuit, are locked in position until tripped. The roller-type trigger lockouts prevent positively any operation of the Limit Switch until the full power of the high- tensile, oil-tempered, magnafluxed spring is available to assure extremely fast operation for either tripping or re- setting. Operation in any intermediate position of the operating lever is im- possible. Direct contact opening an

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SIZE A B C D E F G H J K L M N P R S T U V W X Y 2 & 3 9-7/8 1-3/4 5-1/2 12-5/8 5-1/2 3-7/8 8-1/16 5-1/8 1-5/8 4-1/2 1/2 5-1/4 5 1-7/16 1-7/16 1-5/8 18 5 3-1/2 13/32 9/16 1/4 6- 4 14-1/16 2-1/4 8-5/8 17-7/8 8-1/8 7-3/8 11-1/4 6-3/4 2-3/8 6-3/4 1-1/2 7-5/8 1-3/4 3 2-1/2 21 5-1/2 4 9/16 1/2 3/4 11/16 3- 5 18-3/16 3 12-1/2 21-1/4 11 10-1/4 22-5/16 9-1/2 2-7/8 8-3/4 2-1/4 9-7/8 8-3/8 3 3-3/4 27 7 5 9/16 5/16 1-1/8 11/16 2- 2- 6 & 6a 24-13/16 7-1/2 18-1/4 27-3/4 16-7/8 15 22-5/16 14 3 11

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LIMIT SWITCH RESISTORS FOR USE WITH DYNAMIC LOWERING CRANE HOISTS 250 VOLTS D.C. DC LIMIT SWITCH RESISTORS 230/250 VDC, ENCLOSED Disc. FOR USE WITH DYNAMIC LOWERING HOISTS Sch E37 DIMENSIONS HP PART RANGE NUMBER ABCD E 5 – 10 69453-069 12.75” 13.37” 12.00” 11.12” 6.06” 11 – 13.5 69453-070 15.50” 13.37” 14.75” 11.12” 6.06” 14 – 26 69453-071 15.50” 13.37” 14.75” 11.12” 6.06” 27 – 33 69453-072 15.50” 13.37” 14.75” 11.12” 6.06” 34 – 45 69453-073 15.50” 13.37” 14.75” 11.12” 6.06” 46 – 65 69453-074 15