DIN rail components

Features
The DDA Residual Current Blocks DDA200 and DDA800 facilitates the customers to assemble the product
with S200/S800 MCBs in order to combine the protection against indirect contacts, offered by a standard RCCBs,
the protection against short circuit and overloads. This flexibility is an added advantage for the ones with
who desire to maintain the stock level at a minimum, providing a solution for wide range of applications
with a handful of RCD blocks.

DDA block are mechanically manufactured to prevent an ill coupling between the block and the breaker:
in fact, the rating of the block should always be greater or equal than the rating of the MCB.
The side plastic clamp permits a quicker assembly of the block on the MCBs,
then a button preserves it from possible disconnections.

• Complete protection against all kinds of leakage currents (AC, A, B, A-APR types available)
• Rated currents from 25A up to 63A in DDA200. The 125A are available as factory fitted RCBOs
• Sensitivities in 30mA, 100mA, 300mA, 500mA, and 1000mA
• Selective devices

Standard

• IEC61009 / EN61009 Ann. G
• IEC62423 ed.2

Benefits

• Apt to be connected with the proper MCB preventing wrong coupling
• Fast connection of the incoming terminals of the MCB
• The installation is safe as the coupling elements are not losable
• Complete range of products, even selective
• Remote tripping terminals on 63A versions
• Test push-button to check the responsiveness of the device

Applications: residential, commercial, and industrial