Residual Current Devices RCDs

ABB Residual Current Devices RCDs / DDA203 Page 1 ⍾ ABBLast modified

The ABB DDA203 series of RCDs are designed for assembly with S200 series MCBs and provide protection against sinusoidal alternating and direct pulsating earth fault currents, as well as protection against indirect contacts. They offer additional protection against direct fault currents.