GFB1L-63N Electronic Residual Current Circuit Breaker (3P+N Longbody) RCBO
GFB1L-63N Residual Current Breaker RCBO 6kA 3 Pole and Neutral 63A C Curve 30mA Type A (Longbody)sidual Current Breaker RCBO 6kA 3 Pole and Neutral 63A C Curve 30mA Type A (Longbody)
GFB1L-63N Range of residual current devices (RCDs) are a high-performance electrical safety solution designed for commercial, industrial and mining applications. These RCDs offer a high level of selectivity, with sensitives including 10mA, 30mA, 100mA,300mA and500mA, types starting at Type A for general purpose applications through to Type F and B for more complex loads.
● Standard: IEC/EN 61009-1
● Type: AC, A
● Rated current: 6A,10A,16A,20A,25A,32A,40A,50A,63A
● Rated voltage: 400/415V~
● Number of poles: 3P+N
● Rated Residual Operating Current (I△n): 10mA, 30mA, 100mA, 300mA,500mA
● Rated short-circuit breaking capacity: 6kA
● Tripping curve: B,C
● Ambient air temperature: -35℃~+70 ºC
● Certificates: CB,CE, UKCA,SEMKO
Product Description
●Model and Meaning ●Introduction
GFB1L-63N Electronic residual current trip (3P+N) is a low-voltage protection device that integrates overload, short circuit, and leakage protection. Its core feature is the use of electronic trip technology to achieve accurate leakage detection. The following is the key description:
Ⓐ structural property
● Polarity configuration: 3P+N denotes a three-phase (L1/L2/L3) system with a neutral (N) line. The neutral pole is typically used solely for isolation or leakage detection, without overcurrent protection capability.
● Module design: The standard module is 54mm (3×18mm), with the N pole occupying space but not independently separated.
Ⓑ principle of work and power
● Leakage protection: Detects residual current through a zero-sequence current transformer. When the leakage current exceeds the preset threshold (e.g., 30mA), the electronic tripping mechanism activates.
● Wiring requirements: Strictly follow the left neutral, right live principle. The N line must be connected to the terminal marked N. Otherwise, the protection may fail.
Ⓒ application scenarios-Industrial control systems, electrical installations in commercial buildings, and household circuit protection
● Suitable for three-phase four-wire systems (e.g., 380V power equipment) where neutral line leakage detection is required but no neutral line disconnection is needed.
● Common in industrial control, commercial building distribution boxes, etc.
Ⓓ Selection considerations
● Specify the N-pole function requirements (e.g., whether synchronization and disconnection are required)
● Prioritize products compliant with IEC/EN 61009-1 standards, ensuring a breaking capacity of ≥6kA
●Technical Parameters
Product Model | GFB1L-63N |
Product complies with standard | IEC/EN 61009-1 |
No. of poles | 3P+N |
Rated current (In) | 6A,10A,16A,20A,25A,32A,40A,50A,63A |
Rated sensitivity currents I△n | 10mA, 30mA, 100mA, 300mA，500mA |
Rated short-circuit breaking capacity | 6kA |
Energy limiting class | 3 |
Rated voltage (Ue) | 400/415V |
Rated impulse withstand voltage (1.2/50) Uimp | 4kV |
Trip curve | B、C |
Leakage current type | AC、A |
Tripping time | 300ms |
Min.service voltage | 207V |
Max.operating voltage(Uamx) | 457V |
Protected neutral pole | No |
Isolator application | Yes |
Disconnection characteristic | Undelayed |
Protection | Ground fault, Overcurrent and short circuit |
Type of trip | Ground fault: Electronic |
Overload and short circuit: Thermo-magnetic | |
Residual current off-time under I△n | ≤0.1s |
Reted residual making and breaking capacity (I△m) | 500A(In≤50A) |
Thermal release characteristic | (1.13-1.45) x In |
Magnetic release characteristic | B:(3-5) x In, C:(5-10) x In |
Electrical Life | 10000 Cycles |
Mechanical Life | 20000 Cycles |
Contact Position Indicator | Yes, ON (red); OFF (green) |
Ambient Temperature | -35℃~+70℃, Maximum Humidity 95% |
Datum temperature | 30℃ |
Protection Degree | IP20 |
Connectable conductor cross section solid-core | 1-25mm² |
Connectable conductor cross section multi-wired | 1-16mm² |
Torque (N·m) | -35℃~+70℃, Maximum Humidity 95% |
Installation | 30℃ |
Depth | IP20 |
Height | 1-25mm² |
Width | 1-16mm² |
●Product Types Choosing
| Rated Current | Rated Residual Operation Current(I△n) | Product Number | |
| Type B | Type C | ||
| 6A | 10mA、30mA、100mA、300mA、500mA | GFB1L-63NB0610 GFB1L-63NB0630 | GFB1L-63NC0610 GFB1L-63NC0630 |
| 10A | 10mA、30mA、100mA、300mA、500mA | GFB1L-63NB1010 GFB1L-63NB1030 | GFB1L-63NC1010 GFB1L-63NC1030 |
| 16A | 10mA、30mA、100mA、300mA、500mA | GFB1L-63NB1610 GFB1L-63NB1630 | GFB1L-63NC1610 GFB1L-63NC1630 |
| 20A | 10mA、30mA、100mA、300mA、500mA | GFB1L-63NB2010 GFB1L-63NB2030 | GFB1L-63NC2010 GFB1L-63NC2030 |
| 25A | 10mA、30mA、100mA、300mA、500mA | GFB1L-63NB2510 GFB1L-63NB2530 | GFB1L-63NC2510 GFB1L-63NC2530 |
| 32A | 10mA、30mA、100mA、300mA、500mA | GFB1L-63NB3210 GFB1L-63NB3230 | GFB1L-63NC3210 GFB1L-63NC3230 |
| 40A | 10mA、30mA、100mA、300mA、500mA | GFB1L-63NB4010 GFB1L-63NB4030 | GFB1L-63NC4010 GFB1L-63NC4030 |
| 50A | 10mA、30mA、100mA、300mA、500mA | GFB1L-63NB5010 GFB1L-63NB5030 | GFB1L-63NC5010 GFB1L-63NC5030 |
| 63A | 10mA、30mA、100mA、300mA、500mA | GFB1L-63NB6310 GFB1L-63NB6330 | GFB1L-63NC6310 GFB1L-63NC6330 |
●Connecting Line
Rated current In (A) | Nominal cross-sectional area S (mm²) of copper wire |
6、10 | 1-2.5 |
16 | 2.5-4 |
20、25 | 4-6 |
32、40 | 6-10 |
50、63 | 10-16 |
●Appearance and Installation Dimensions ●Characteristic Curves
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