Contents
ACB-I
1
A I R C I R C U I T B R E A K E R
1. BA series specication 2
2. General information 3
2.1 Purpose 3
2.2 Model and implication 3
2.3 Classication 3
2.4 Conditions of use 3
3. Structure specications 4
4. Intelligent controller 5
5. Time/Current curve 14
5.1 ACB Operating curves 14
5.2 Controller (IEC 60255 standard) 16
6. Accessories and functions 22
6.1 Shunt release, Undervoltage release, Motor-driven mechanism, Closing electromagnet 22
6.2 Auxiliary contacts 22
6.3 Mechanical interlocks 23
7. Secondary connection diagram 25
7.1 KST45-M series intelligent controller 25
7.2 Electric controller 27
7.3 ATS 29
8. Outline and installing dimension 30
8.1 Withdrawable circuit breaker 30
8.2 Fixed circuit breaker 33
8.3 Dimension of drilling compartment door and installment pitch of holes 34
9. Mounting, usage and maintenance 35
9.1 Mounting 35
9.2 Usage of intelligent controller 35
9.3 Plugging into the breaker and drawing out the breaker 51
9.4 Maintenance 52
10. Regular failure and obviate methods 53
11. Order 54
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