AC Contactor, Contactor, AC Contactor LC1-D manufacturer / supplier in China, offering Cjx2 (LC1) Excellent Quality AC Magnetic Contactor with Ce Certificate Motor Starter Relay Contactor, Knl1-63 (F360) Residual Current Circuit Breaker - 2007 Type, Miniature Circuit Breaker MCB with Ce CB S Knb6-63 (GRB60) 6ka- 10ka Sp Tp C6-25A C32~63A L7 Modification and so on.
Min. Order / Reference FOB Price | |
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1 Pieces | Contact Supplier |
Local Area: | Wenzhou, Zhejiang, China |
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R&D Capacity: | OEM, ODM, Other |
Payment Terms: | LC, T/T, PayPal |
Breaking Capacity: | Low Voltage Circuit Breakers |
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Operation: | Electric Type |
Speed: | Normal Type Circuit Breaker |
Basic specification and main parameters
frame
63A
Rated working voltage
230/400V
Rated frequency
50/60Hz
Rated working current
16,25,40,63A
Rated residual operating current
0.03,0.1,0.3,0.5A
Rated residual un-operating current
0.015,0.05,0.15,0.25A
Sensibility
A Type,AC Type,S Type
Maximum operating time
In t≤0.1s , 5In t≤0.04
Rated making and breaking capacity
In≤50A 500A,In=63A 630A,In=63A 1500A
Limiting value of un-operating current
6In
Rated limiting short-circuit current
10000A
Pole number
2,4P
Mechanical life
20000
Electric life
4000
Operation principle
Each phase of conductor at the circuit breaker passes through the zero-sequence
current tr ansformer, and the secondary side of coil connects with the electromagnetic tripper.Under normal condition, the vector sum of each phase of current passing through zerosequence current transformer is zero. The flux of the zero-sequence current transformer is zero. And the secondary output voltage is zero and the circuit breaker doesn t zero,and the zero-sequence current transformer would produce the magnetic flux, and the secondary side of coil would output the voltage. once the leak current increases to drive the output voltage at the secondary side to grow to certain level, the electromagnetic release would activate to drive the operation mechanism to act to break the contact that connects the power, finally to realize the leak protection.