ABB DDA204 4P 63A 500mA differential lock AC type 2 modules B427950
Abb DDA204 series differential block (circuit breaker), with the following characteristics
- 2 modules
- DIN connection (universal for any switchboard on the market)
- 4 poles
- 63 amperes
- Rated residual current 500mA
- Rated voltage 230/400 Vac
- AC differential type

ABB DDA204 4P 63A 500mA differential lock AC type 2 modules B427950
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The differential blocks are mechanically designed to prevent a wrong coupling between the block and the circuit breaker: the power of the block must always be equal or greater than that of the circuit breaker. The lateral plastic clamp allows a quicker assembly of the block on the circuit breaker and a push button prevents possible interventions.
It is used to protect human health in case of earth fault (electrical leakage) or phase-to-earth electrocution, thus providing protection also against macro electrical shock, both direct and indirect, on exposed persons.
The AC differential blockworks only with alternating current. Almost all civil installations fall into this typology.
Characteristics:
- Abb series
- Nominal voltage 230/400Vac
- Nominal current In 63A
- Rated residual current 500mA
- AC differential type
- 2 modules
- 4 poles
- Height 93mm
- Width 140 mm
- Depth 76 mm
- Net weight 311 gr
Data sheet
- Voltage:
- 230/400VAC
- Modules:
- 2
- Poles:
- 4P
- RCD Type:
- AC
- Differential current :
- 0.5A
- Amps:
- 63A
- Circuit Protections:
- Earth Leakage add-on Blocks