Main Contact Replacement Kit; Arc Chute Replacement Information - Siemens 456 Instructions Manual

)
.
,
,
l
1
•
ITEM DESCRIPTION
QTY
QTY
PART NUMBER
3-POLE 2-POLE
1200
Pre-Wired Auxiliary Contact Panel
-
1
25-302-616-501
Sub-Assembly for 230 V AC Cantsctar.
Consisting of Items 120C, 52·55,
67, 70, 71, 108, 109, 116.
121A
Magnet Yoke and Auxiliary 1
-
25-125-247-508
Contact Panel Sub-Assembly
for 115 V AC Cantactar, Consisting
of Items 120A. 16-23, 38-44.
56,58,59,61,63,64,68,70-73,
77,81,82,89,94,96,99', 102, 110.
121B
Magnet Yoke and Auxiliary
-
1
25-125-247-509
Contact Panel Sub· Assembly
For 115 V AC Cantactar, Consisting
of Items 120B, 16·23, 38'44,
56,58,59,61,63,64,66,70-73,
77,81,82,89,94,96,99, 102, 110.
121C Magnet Yoke and Auxiliary 1
-
25-127-634-503
Contact Panel Sub-Assembly
for 230 VAC Cantactar, Consisting
ofItems 120C, 16-23, 38-44,
56,58,59,61,63,64,68,70-73,
77,81,82,89,94,96,99,102,110.
1210 Magnet Yoke and Auxiliary
-
1
25-127-634-506
Contact Panel Sub-Assembly
for 230 V AC Cantactar, Consisting
of Items 1200, 16-23, 38-44,
56,58,59,61,63,64,68,70-73,
77,81,82,89,94,96,99,102,110.
MAIN CONTACT REPl .. CEMENT KIT - Kit includes complete set of main stationary and movable
conta~1S
plus contec, pres
springs for a three-polo contac>"r. Order part number 14-172-548-801.
r - - - - - - -
---IMPORTANT INFORMATION WHEN REPLACING ARC CHUTES------
OBSOLETE ARC
CHUTE
(14-422-044-501)
REPLACEMENT
.... RCCHUTE04
The arc chute for type 456 contactors manufactured prior to January,
1980 and pictured at upper left is obsolete and no longer available as a
replacement part.
This arc chute has been superseded with a new design which is
smaller and lighter. The older design arc chute was comprised of two
molded light gray halves with interleaved arc splitter fins. The newer
design, shown at lower left, is made of two dark gray plastic halves
which house an integral ceramic arc splitter assembly.
The two arc chute designs are interchangeable, with one very im-
portant exception - THEY MUST NOT BE MIXED IN THE SAME
CONTACTOR. If arc chutes of different types are mixed, then inter-
rupting duty between individual poles will be unequal causing sub-
stantial reduction in the interrupting capacity of the contactor. When
contactors employing the obsolete arc chute design require replace-
ment of one or more arc chutes, a complete set of three of the newer
ceramic-type arc chutes must be ordered and installed. Similar in-
structions apply for two-pole contactors, except only two arc chutes are
required.