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GDA204一AC

The ABB GDA204-AC is a 4-pole, Type AC, double-insulated (isolated) enclosure for Residual Current Devices (RCDs) from the ABB GDA series. This is not an electrical protection device itself, but a high-safety, non-conductive mounting enclosure designed to house and insulate a standard 4-pole RCCB (Residual Current Circuit Breaker without overcurrent protection) or RCBO. Its primary function is to provide enhanced safety and insulation for the RCD module, creating an extra layer of protection against accidental contact with live parts. This is particularly important when installing RCDs in environments where metallic enclosures are not desired or for added safety in consumer units.

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Technical Specifications / Parameters Parameter Specification Manufacturer Type Code GDA204-AC Brand / Series ABB GDA Series (Insulated Enclosures for RCDs/RCBOs) Product Type Insulated Enclosure / Surround / Casing (for a 4-pole RCD module) Compatible Devices Designed to house a standard ABB 4-pole RCCB or RCBO from the GSH200 series or equivalent (e.g., a GSH204-XX device). The "-AC" suffix indicates it is a standard enclosure, not defining the RCD type inside. Material High-grade, flame-retardant thermoplastic (e.g., Polycarbonate). Provides Double Insulation (Class II) protection symbol. Protection Degree Typically IP20 (for protection against solid objects, not against water). Mounting DIN Rail Mounting (35mm). The enclosure snaps onto the rail, and the RCD module then snaps into the enclosure. Module Width Adds minimal extra width to the housed RCD. A standard 4-pole RCD (72mm) inside this enclosure will have a total width of approximately 72mm + enclosure thickness. Key Safety Feature Completely covers the sides and front edges of the RCD module, preventing accidental contact with the metallic DIN rail clip or any exposed terminal areas from the side. The operator (test button, switch lever) remains accessible. Color Typically white or grey, to match standard consumer unit aesthetics. Standards Complies with relevant parts of IEC/EN 61439 (Low-voltage switchgear assemblies) regarding enclosures. Application Used in consumer units (distribution boards), panelboards, and enclosures where an extra layer of user safety and insulation is required for the RCD component.