Claire
Mr.Fu
Claire
SJK47LE-63 RCCB: Reliable Earth Leakage Protection from China Suppliers and Factory for 230V/400V AC Systems
Type Designation
- 1Manufacturer Code
- 2Design Serial Number
- 3With Residual Current Protection (Earth Leakage Protection)
- 4Rated Current Collection (32A, 63A)
- 5Operational Current
- 6Number of Poles
Product Display
Technical Parameters
Table 1
| Maximum Frame-rated Current (A) | Number of Poles | With Neutral Pole | Rated Current In (A) | Rated Voltage Un (V) | Rated Residual Operating Current I△n (mA) | Rated Residual Non-operating Current I△no (mA) | Breaking Time at I△n (s) | Rated Residual Making & Breaking Capacity I△m (A) | Instantaneous Overcurrent Release Type |
| 32 | 1 | +N | 6 10 16 20 25 |
230 | 30 50 100 300 |
15 25 50 150 |
<0.1 | 2000 | C D |
| 2 | 230 | ||||||||
| 3 | 400 | ||||||||
| 3 | +N | 400 | |||||||
| 4 | 400 | ||||||||
| 63 | 1 | +N | 32 40 50 63 |
230 | |||||
| 2 | 230 | ||||||||
| 3 | 400 | ||||||||
| 3 | +N | 400 | |||||||
| 4 | 400 |
◇ Rated Short-Circuit Capacity (Icn), Service Short-Circuit Breaking Capacity (Ics).
Table 2
| Model | Rated Current | Rated Short-Circuit Current (A) | Operating Short-Circuit Breaking Capacity (A) | ||||||
| SJK47LE | 6~63A | 4500 | 4500 | ||||||
| SJK47LEH | 6~63A | 6000 | 6000 | ||||||
◇ Overcurrent Protection Characteristics at 30°C~35°C (Ref. Table 3)
Table 3
| No. | Rated Current of Release (A) | Initial State | Test Current | Specified Time | Expected Result | Notes | |||
| 1 | 6~63 | Cold State | 1.13In | t≤1h In≤63A | No Tripping | ||||
| 2 | 6~63 | Immediately after previous test post-test condition | 1.45In | t<1h In≤63A | Tripping | Current Rises Steadily to Specified Value Within 5s | |||
| 3 | In≤32 | Cold State | 2.55In | 1s<t<60s | Tripping | ||||
| In>32 | Cold State | 2.55In | 1s<t<120s | Tripping | |||||
| 4 | 6~63 | Cold State | 5In 10In |
t≤0.1s t<0.1s |
No Tripping Tripping |
C Type | |||
| 10In 14In |
t≤0.1s t<0.1s |
No Tripping Tripping |
D Type | ||||||
◇ Wiring: For conductors ≤25mm² (Ref. Table 4) Connection method: Screw-clamp terminals, Torque 2N·m
Table 4
| Rated Current In (A) | Nominal Cross-Sectional Area of Copper Conductor (mm²) |
| 6 | 1 |
| 10 | 1.5 |
| 16、20 | 2.5 |
| 25 | 4 |
| 32 | 6 |
| 40、50 | 10 |
| 63 | 16 |
Outline and Installation Dimensions
Table 5
| 1P+N | 2P | 3P | 3P+N | 4P |
| 18+36 | 36+36 | 54+54 | 54+72 | 72+72 |
Frequently Asked Questions
Q
What is the difference between the SJK47LE and SJK47LEH models?
The SJK47LE has a rated short-circuit current (Icn) and operating short-circuit breaking capacity (Ics) of 4500A, while the SJK47LEH is a higher-capacity version rated at 6000A for both values. Both models cover the same current range of 6~63A.
Q
What residual current (earth leakage) settings are available for the SJK47LE-63?
The SJK47LE-63 supports four rated residual operating current (I△n) settings: 30mA, 50mA, 100mA, and 300mA. The corresponding rated residual non-operating currents (I△no) are 15mA, 25mA, 50mA, and 150mA respectively. The breaking time at I△n is less than 0.1 seconds.
Q
What is the difference between C Type and D Type instantaneous overcurrent release?
C Type trips instantaneously when the current reaches 10In (does not trip at 5In within 0.1s). D Type trips instantaneously when the current reaches 14In (does not trip at 10In within 0.1s). C Type is suitable for general residential and light commercial loads, while D Type is designed for equipment with high inrush currents such as motors and transformers.
Q
What copper conductor cross-sectional area should be used with a 63A rated current?
For a rated current of 63A, a copper conductor with a nominal cross-sectional area of 16mm² is recommended. The connection method uses screw-clamp terminals with a tightening torque of 2N·m. Conductors up to 25mm² are supported.
Q
What pole configurations are available for the SJK47LE-63?
The SJK47LE-63 is available in 1P+N, 2P, 3P, 3P+N, and 4P configurations. Single-pole and 2-pole variants are rated at 230V, while 3-pole, 3P+N, and 4-pole variants are rated at 400V.
Q
What are the overcurrent protection characteristics of the SJK47LE-63 under normal temperature conditions?
At 30°C~35°C ambient temperature: the breaker will not trip at 1.13In for up to 1 hour (cold state); it will trip within 1 hour at 1.45In (immediately following the previous test). At 2.55In from cold state, breakers rated ≤32A trip within 1s~60s, and those rated >32A trip within 1s~120s.