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ACB-OB
2
AIR CIRCUIT BREAKER
1.3 Classification
■
Mounting type: Draw out type, fixed type
■
Operation mode: Electric and manual operation
■
Number of poles: 3 and 4
■
Tripping categories: Intelligent controller, under-voltage instantaneous (or delay) release, and shunt release
■
Intelligent controller can be divided into two types based on functions: XSIC-A and XSIC-P
■
Under-voltage release has instantaneous and delay types.
1.4 Conditions of Use
■
Ambient temperature: -5
o
C~40
o
C
Note: (1) If the minimum working condition is -10
o
C or -25
o
C, please notify us when ordering the product.
(2) If the maximum working condition e40
℃
or the minimum is less than -25
o
C, please discuss with the
sales representative.
■
The product cannot be installed at places above 2000 altitute.
■
Atmospheric conditions: Relative humidity could not exceed 50% when the surrounding temperature is +40
o
C. For
lower temperature, the relative humidity can be higher. The average maximum relative humidity for the month
with the highest humidity is 90%, and the average lowest temperature of that month is +25
o
C. Please consider the
possibility of frosting on the surface of the product due to temperature change.
■
Pollution level: 3
■
Mounting categories: For circuit breakers with rated voltage 690V or below, under-voltage release coils and power
transformer level 1 coils, the mounting type is IV. For auxiliary circuits and control circuits, the mounting type is III.
■
Mounting conditions: Consult this manual for circuit breaker installation.
1. Introduction
1.1 Purposes
The rated voltages of BW series air circuit breakers (referred to as circuit breakers) are rated voltage AC400V, 690V,
50/60HZ. The rated current is from 630 to 6300A. It's used for distributing power and protecting circuits in the electrical
distribution system is protected from overloading, voltage shortage, short circuit, earthling, and other hazardous faults.
The circuit breaker has multiple intelligent protection functions available for selection. The protective actions have a
high precision for preventing unnecessary power failure, closing power supply much more reliable.
1.2 Type Designation
BW
Circuit breaker poles
(4-4 poles, 3-3 poles)
Circuit breaker pole codes
(HS for standard, HN for high breaking)
Circuit breaker frame size
(2000, 3200, 4000*, 6300)
All purpose circuit breakers
Содержание BW-2000
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