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MULTI-POLE CIRCUIT PROTECTORS
AP Multi-Pole Combinations
Circuit demands and design ingenuity suggest a limitless number
of special combinations, ranging from a two pole unit with one
series breaker and a simple ON·OFF switch, to a more complex
three pole unit having one series, one shunt and one relay
configuration with auxiliary indicator circuit contacts. Please
contact Airpax for specific part number.
Two Pole, AP12
Two of the basic units are combined in a sealed case to provide
protection for dual circuit. A single toggle handle actuates both
internal trip mechanisms. Conversely, an overload in either circuit
trips both simultaneously.
Two Pole, AP12, Toggle
The AP12 consists of two independent series trip protectors,
each available with its own rating and delay characteristics.
This two pole unit can therefore have an unlimited number of
combinations, which makes ordering by a code system
impractical. Thus, if the poles differ, a descriptive drawing is
recommended.
One frequent use of two pole protectors is to interrupt either or
both sides of a power line. Likewise, three pole protectors often
use three identical coils. However, any two or three pole
protectors may have any coil of any delay in any desired
combination. (Unless otherwise specified, we assume the two or
three poles to be all alike.)
[ 7.92 ]
[ 45.21 ]
[ 9.65 ]
[ 15.88 ]
[ 15.88 ]
.312
1.780 MAX.
NOTE A
.380 MAX.
.625
MAX.
22o
.625
[ 22.23 ]
.875
11o
[ 15.88 ]
[ 32.53 ]
RUBBER“O”RING
LOCK RING
ON-OFF PLATE
(OPTIONAL)
LOCKWASHER
.625
1.281 MAX.
3 / 8
–32 NEF-2B HEX NUT
.188 [ 4.78 ] DEEP
[ 22.23 ] [ 15.88 ]
[ 39.67 ]
[ 9.53
[ 9.53 ]
[ 15.88
[ 8.26
.375
9.53
.147 3.73
.125 [ 3.18 THIS HOLE MUST BE BLIND
6-32THD.
(2 PLACES)
.875
MAX. .625
1.562 MAX.
.375
.375
ON
OFF
.250 [ 6.53
(2 PLACES)
Mounting Detail
.625
.325
±.003
.375
±.076
9.53
± .003
±.076
±.002 ±.051
FOR PANEL SEAL INTEGRITY,
WITH .075 [1.91] MIN. DEPTH
.391 [ 9.93
[ 1.52 - 1.65 ]
[ .66 - .76 ]
KEYWAY
.060 - .065 WIDE
.026 - .030 DEEP
Panel Mounting Detail: Tolerance for Mtg. ±.005 [.13]
Panel Thickness: .125-.156 [3.18-3.96]
Note: Tolerance ± .031 [.79] Angles: ±5° unless noted. Dimensions in brackets [ ] are millimeters.
A: Threaded inserts exceed seated height of bushing by .005-.015 [.13-.38]
73
AP Series - Poles
http://airpax.sensata.com
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