Product features：
Feature 1: U-shaped static contact
Feature 2: modularized accessories
Feature 3: miniaturized frame
Feature 4: contact repulsion device (patented technology)
Feature 5: intelligence
Feature6: modularized arc extinguishing system
Feature 7: unification
Ambient and installation conditions：
l Below 2000 meters above sea level;
l Ambient medium temperature should be within -5℃to +40℃(+45℃for marine products);
l lt can withstand the effect of damp air;
l lt can withstand the effect of moulds;
l lt can withstand the effect of nuclear radiation;
l The max inclination is 22.5 degree;
l lt still can work reliably when the ship subjects to normal vibration;
l lt can still work reliably if the product subjects to the earthquake (4g).
l Places where the surrounding medium is free from explosion danger, and far away from gas or conductive dust that would erode the metal or destroy the insulation;
l keep away from rain or snow.
Components of circuit breaker:
1、Auxiliary switch
5、Terminal cap
9、Manual operation
2、Alarm switch
6、Phase partition
10、Plug-in type back-board wiring
3、Shunt release
7、Front-board wiring
11、##4SUlZT aSdVi[d`Y
4、Undervoltage release
8、Electric operation
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Product selection guide：
Main performance indexes：
Type
AOM-250S
AOM-250M
AOM-250H
AOM-400S
AOM-400M
AOM-400H
Pole
3P,4P
3P,4P
Rated current(A)
100,125,140,160,180,200,225, 250
250,315,350,400
Rated voltage
AC 400V
AV 400V
Rated insulation voltage
AC 1000V
AC 1000V
Short-circuit breaking capacity
(KA)Icu/Ics
AC 400V
25/18
50/35
65/50
50/35
50/35
65/65
Operating cycle number
ON
3000
2000
OFF
7000
4000
Outline dim. (mm) a-b-c-ca
3P
105-165-68-92
105-165-88-115
140-257-103-155
4P
140-165-68-92
140-165-88-115
184-257-103-155
Weight (kg)
3P
1.5
1.7
5.5
4P
1.9
2.1
7.0
Electric operating device (MD)
●
●
External driving operating handle
●
●
Automatic release
Thermal electromagnetic type
Thermal electromagnetic type
