DGB3LE-40AFD
Functions
- DGB3-40AFD arc fault protection devices is suitable for fault arc, overload,short circuit and leakage protection of lighting distribution system and power distribution system branch large load equipment with rated current of 40A and
Normal conditions of use
Storage temperature-5 or +40. Average daily maximum temperature is +35.No more than 2000 m, relative humidity 40°C at 50% m , 40°C at 90%m.
Characteristics of products
DGB3LE-40AFD series of arc fault protection device include leakage protection,fault arc protection, overload protection and short circuit protection functions.DGB3LE-40AFD series of arc fault protection appliances leakage tripping characteristics as shown in Table 1 below:
Table 1
| Model | In(A) | I △ n | Break time and non-drive time limited value | |||
| I△n | 2I△n | 5I△n | ||||
|
DGB3LE-40AFD |
Any Values |
>0.03 | 0.3 | 0.15 |
Maximum breaking time |
|
| 0.03 | 0.3 | 0.15 | ||||
| <0.03 | 0.3 | 0.15 | 0.04 | |||
The arc fault protection function of DGB3LE-40AFD series of arc fault protection devices mainly includes the arc fault protection detection unit, which detects and identifies the fault arc in the line and sends out the tripping signal. The DGB3LE-40AFD main contact is automatically converted from the closed position to the disconnected position, thus disconnecting the fault line.
Action judgement and breaking time maximum value of a 230V rated arc fault protection device is shown in Table 2, Table 3.
Table 2 ,maximum value of ADDF action judgment under high arc current below 40A
| Test arc current (Effectiv Value) | 3A | 6A | 13A | 20A | 40A |
| Maximum segmen time | 1S | 0.5S | 0.15S | 0.25S | 0.12S |
Test arc current is the expected current before burning in test circuit.
Table 3,maximum value of ADDF action judgment under high arc current above 40A
| Test arc current (Effectiv Value) | 75A | 100A | 150A | 200A | 300A | 500A |
| N | 12 | 10 | 8 | 8 | 8 | 8 |
N is half wave number at rated frequency.
DGB3LE-40AFD overcurrent protection function of a series of arc fault protection devices. When the circuit current exceeds the rated current of the product,bending deformation occurs DGB3LE-40AFD the hot stripper system in the series arc fault protection appliances to drive the main contact from the closed position to the disconnected position. Thus disconnecting the current.DGB3LE-40AFD arc fault protection appliances overcurrent tripping characteristics as shown in Table 4
Table 4 DGB3LE-40AFD Overcurrent tripping characteristics
|
Serial Number |
Detail rated current
InA |
Starting state | Test current | Tripping time | Expected result |
Remarks |
| 1 |
≤40 |
Cold sate | 1.13 | ：1h | Non-tripping | – |
|
2 |
After on time experienm |
1.45 |
<1h |
Tripping |
Current increase to index value within 5s | |
| 3 | ≤32 |
Cold state |
2.55 | 1s<t<60s | Tripping | – |
| >32 | 1s<t<180s | |||||
| 4 |
≤40 |
5 | ≤0.1s | Non-tripping | Closing auxiliary contact to current | |
| 5 | 10 | <0.1s | Tripping | Closing auxiliary contact to current |
Product and installation dimensions(MM)
Installation guide
Order information
- Please specify the product model and specification, and the type, rated current, number of poles, and order quantity of the instantaneous release when ordering.
- Order example: DGB3LE-40AFDseries, such as: DGB3LE-40AFD Arc Fault Detect Device operated circuit breaker
- Trip type, such as: C type
- Number of poles of product, such as 1P+N
- Rated current, such as 32A
- Rated residual operating current, such as: 30mA
- type wave form of earth leakage sensed such as: A type
- Order quantity, such as: 1000 units
- Specified as: DGB3LE-40AFD C32 1P+N 30mA A type 1000 units
