Product Introduction
The KNS3-63SH circuit breaker is a high short-circuit breaking capacity, dual wiring function, finger-touch protected combination terminals, energy storage mechanism operation, and various optional accessories. Made of high flame-retardant, high-temperature resistant, and impact-resistant plastic, it is suitable for electrical equipment within specific temperature and altitude ranges and for pollution level 2.
The KNS3-63SH circuit breaker is used for overload and short-circuit protection of AC 50/60Hz lines with a rated voltage of 230/400V and a rated current up to 63A. It can also be used for infrequent switching of lines under normal conditions.
Rated Short-circuit Breaking Capacity
|
Talking type |
Rated current (A) |
series |
Rated voltage (V) |
Rated short-circuit breaking current (A) |
Rated insulation voltage (Ui) |
Power factor comΦ |
Rated impulse withstand voltage (Uimp) |
|
C type |
1A～63A |
1P |
230/400 |
6000 |
600V |
0.65～0.7 |
4KV |
|
D type |
2P,3P,4P |
400 |
Cross-sectional Area Of Copper Conductor (mm²)
|
Rated current In (A) |
≤6 |
10 |
16,20 |
25 |
32 |
40,50 |
63 |
|
Conductor cross-sectional area (mm²) |
1 |
1.5 |
2.5 |
4 |
6 |
10 |
16 |
Mechanical And Electrical Life
|
Category |
Frequency |
Operation frequency (times/hour) |
Rated current (A) |
Rated short-circuit breaking capacity (Icn) |
Operating short-circuit breaking capacity (Ics) |
Enclosure protection rating |
|
Electrical life |
10000 |
240 |
1～32 |
6A-40A：6000A;50A-63A：4500A |
6A-40A：6000A;50A-63A：4500A |
IP20 |
|
120 |
40,50,63 |
|||||
|
Mechanical life |
20000 |
240 |
1～63 |
Common Faults and Troubleshooting
|
Cause of the fault |
Cause Analysis |
Elimination methods |
|
Cannot be closed |
Is there a short circuit at the load end? |
Troubleshooting |
|
Operating mechanism malfunction |
Replacement product |
|
|
The rated current of the circuit breaker does not match the load current. |
Change product specifications |
|
|
Temperature rise is higher than average |
The wiring screw is not tightened or is loose. |
Tighten the wiring screws |
|
The selected conductor cross-sectional area is too small. |
Replace wire specifications |
|
|
The circuit breaker was not tripped during a short circuit. |
The selected circuit breaker is not compatible with the operating conditions of the load. |
Change product specifications |
|
No power |
The wire strip is too short |
Re-stripping the wire |
|
The wiring screws are not tightened or are loose. |
Tighten the wiring screws |
Appearance and Size
Questions and Answers
Q: When can I expect to receive a quote and detailed information after submitting an inquiry?
A: A reply will be sent within 24 hours.
Q: What makes you different from other suppliers?
A: We have a full range of electrical products and can also customize products to meet your specific needs.
Q: Do you provide samples? Are they free or extra?
A: Yes, we can provide samples free of charge, but we will not cover the shipping costs.
Q: Can I get a sample for testing before placing an order?
A: Of course!
Q: How's the delivery? I really need them urgently!
A: Samples require 5-7 days. Bulk orders require 12-15 days.
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