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Distributor assembly with combination RCCB/MCB
Distributor assembly with combination RCCB/MCB, also known as RCBOs or residual current circuit breakers with overcurrent protection, are compact modular devices that integrate both a residual current device (RCD) and a miniature circuit breaker (MCB) into a single unit. These assemblies, like the ABB DS800 series, are available in 1P+N, 2P, 3P,...
Distributor assembly with combination RCCB/MCB, also known as RCBOs or residual current circuit breakers with overcurrent protection, are compact modular devices that integrate both a residual current device (RCD) and a miniature circuit breaker (MCB) into a single unit. These assemblies, like the ABB DS800 series, are available in 1P+N, 2P, 3P, and 4P configurations with rated currents up to 125A and breaking capacities up to 50kA. They feature various tripping characteristics (B, C, D, K) and residual operating currents from 30mA to 300mA, with options for short-time delay (APR) and selectivity (S) versions. The combination design saves space in distribution boards while providing comprehensive protection against overloads, short circuits, and earth faults.
These RCBO assemblies are primarily installed in residential, commercial, and industrial distribution boards (DBs) and sub-distribution panels. They are ideal for final circuits requiring both overcurrent and residual current protection, such as lighting circuits, socket outlets, and dedicated equipment feeds. Common applications include building electrical systems, industrial control panels, and automation cabinets where space optimization and reliable protection are critical. The modular design allows for easy installation on standard DIN rails, making them suitable for new installations and retrofits in existing electrical infrastructures.
These products comply with international standards such as IEC 61009-1 and EN 61009 for RCBOs, ensuring safe and reliable operation. The ABB DS800 series is fully compatible with ABB's System pro M compact range and other modular devices, including busbars, enclosures, and auxiliary contacts. They are designed for use in TN, TT, and IT earthing systems, and their electromagnetic compatibility (EMC) meets relevant EMC directives. The devices feature clear status indicators and test buttons for periodic verification of residual current functionality.
At Electric Automation Network, we offer the complete ABB DS800 series of distributor assemblies with combination RCCB/MCB, providing real-time pricing and technical documentation for each article. Our engineering team provides specialized support to help you select the right configuration for your application. We offer express worldwide shipping, ensuring fast delivery to any location. Benefit from our multilingual web portal and personalized technical assistance to optimize your electrical installations.
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