Abb differential lock DDA804 63A 4P 300MA B429250
Abb differential lock DDA804 series with the following characteristics:
- Residual current type: Type A
- Rated operating voltage: 400 - 690V
- Rated current: 63A
- Rated residual current: 300 mA
- Maximum peak current: 0.25 kA
- Number of poles: 4
Can be coupled with S800S, S800N, S800C, S800B series circuit breakers up to 100A to realize the magnetothermal differential protection function.

Abb differential lock DDA804 63A 4P 300MA B429250
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Differential blocks are mechanically designed to prevent mismating between the block and the circuit breaker: the rating of the block must always be equal to or greater than that of the circuit breaker. The plastic clamp on the side allows faster mounting of the block on the circuit breaker, and a push-button prevents possible tripping.
It is used to protect human health in the event of a ground fault (electrical leakage) or phase-to-ground electrocution, thus also providing protection against macro electrical shock, both direct and indirect, on exposed persons.
The type A differential block, ensures operation for AC and one-way pulsating type currents.
Features:
- Residual current type: Type A
- Suitable for: S800S, S800N, S800C, S800B
- Impulse withstand voltage (Uimp): 6 kV
- Type of leakage current: UN
- Rated frequency: 50 to 60 Hz
- Power loss: 13.5W
- Environmental temperature: -25/+60 degrees
- Degree of protection: IP2X
- RoHS Declaration: According to EC Directive 2011/65/EC
- Dimensions: height 108.2 mm width 117 mm depth 82.3 mm
- Weight: 460 grams
Data sheet
- Voltage:
- 400/690VAC
- Poles:
- 4P
- RCD Type:
- A
- Differential current :
- 0.3A
- Amps:
- 63A
- Circuit Protections:
- Earth Leakage add-on Blocks