Wenzhou Kinee Electrical Co., Ltd. is one of the most reliable manufacturers and suppliers of pure residual current circuit breaker in China. We warmly welcome you to wholesale pure residual current circuit breaker for sale here from our factory. All customized products are with high quality and competitive price.
Product Introduction
KNS3LE-63CB Series Residual Current Circuit Breaker
This pure residual current circuit breaker is suitable for use in circuits with AC 50Hz or 60Hz, rated voltage: single-pole two-wire and two-pole at 230V, three-pole / three-pole four-wire and four-pole at 400V, and rated current up to 63A. It detects residual current (leakage) and disconnects the circuit to prevent electric shock or electrical fires. As a pure residual current circuit breaker, it is designed for residual current protection in low-voltage final distribution panels in residential, civil, and industrial applications.
Provides residual current protection ONLY! This pure residual current circuit breaker does not provide overload or short-circuit protection. It must be used in conjunction with an MCB (Miniature Circuit Breaker) to achieve complete protection. Therefore, when selecting this pure residual current circuit breaker, users must ensure proper coordination with an overcurrent protective device.
Compliant Standard: IEC 61008-1
Technical Parameters
|
Model |
KNS3LE-63CB |
|
Rated current In |
6,10,16,20,25,32,40,50,63 |
|
Rated insulation voltage (Ui) |
500V |
|
Withstands impulse voltage (Uimp) |
4 kV |
|
Wiring method |
Upward and downward |
|
Maximum limiting torque (N·m) |
2 |
|
Rated operating frequency |
50Hz |
|
Rated residual operating current |
30mA |
|
Rated operating voltage (Ue) |
230/400V AC |
|
Breaking capacity |
6000A |
Common Faults and Troubleshooting
|
Fault phenomenon |
Fault phenomenon |
Elimination methods |
|
Cannot be closed |
There is a short circuit and leakage at the load end. |
Check load status |
|
Operating mechanism malfunction |
Replacement product |
|
|
The rated current of the circuit breaker does not match the load current. |
Change product specifications |
|
|
Has the leakage current accessory been reset? |
Press the reset button |
|
|
Temperature is too high |
The wiring screw is not tightened or is loose. |
Tighten the wiring screws |
|
The selected conductor cross-section is too small. |
Replace wire specifications |
|
|
The rated current of the circuit breaker does not match the load current. |
Change product specifications |
|
|
The product ages naturally, parts deform, rust and loosen. |
Replace with new products |
|
|
Disconnection |
The wire strip is too short |
Re-stripping the wire |
|
The wire was not inserted into the junction box. |
Re-stripping the wire |
|
|
Possible internal structural issues with the product |
Replace with new products |
Appearance and Installation Dimensions
|
3P+N |
L |
H |
B |
|
72.5±0.35 |
74.5±0.5 |
85.5±0.5 |
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.
