SA/S2.16.6.1 ABB 2 Fold Switch Actuator 16/20 AX C-Load Current Det MDRC

Core Technical Parameters

• Basic Specification: Model SA/S2.16.6.1, belonging to the ABB MDRC professional actuator series, is an industrial-grade dual-rating switch actuator integrated with "2-fold independent control + high-precision current detection". Its core positioning is a precise monitoring and management executive device for medium and high-power capacitive loads in small and medium-sized intelligent buildings, and dual partitions/dual loops of large buildings. The 2-fold dual-loop design is the core differential advantage, different from multi-loop models such as 12-fold and 8-fold in the same series, balancing management flexibility and space economy, adapting to the dual-loop centralized management needs of small and medium-sized scenarios.
• Rated Load: Dual-rating AC switching capacity (16 AX/20 AX), deeply optimized for capacitive loads (C-Load). 2 channels can be independently adapted to different power loads — each channel can flexibly choose 16 AX (small and medium-sized capacitive loads) or 20 AX (medium and high-power capacitive loads). It is mainly compatible with LED lighting, fluorescent lamps, capacitive fans/water pumps, small landscape lighting capacitive circuits, etc., and also compatible with conventional resistive and inductive auxiliary loads. 2-fold independent control can realize time-sharing/synchronous management of dual partitions and dual loops, adapting to the diverse load needs of small and medium-sized scenarios, with a more compact size and more flexible installation.
• Core Function (2-Fold + Current Detection): Equipped with a high-precision current detection module (Current Det), supporting 2-fold independent real-time load current monitoring. Its detection accuracy is better than similar products in the same series, which can accurately capture the operating current and current fluctuation of each capacitive load, and synchronously feed back data and operating status to the building central control system; it supports 2-fold independent triple early warning and alarm for overload, overcurrent and abnormal current fluctuation, facilitating operation and maintenance personnel to quickly locate single-channel faults, troubleshoot hidden dangers in advance, and eliminate missed detection and false alarms, adapting to the refined management of dual-loop capacitive loads and solving the cumbersome problem of separate management of dual loops in small and medium-sized scenarios.
• Communication & Compatibility: Natively compatible with ABB building automation control system, perfectly supporting the KNX/EIB intelligent building control bus (mainstream industry protocol). It can realize four modes for 2-fold loads: centralized control, distributed control, remote linkage and independent management. Current detection data is seamlessly connected with the central control system, which can realize 2-fold load operation data analysis and operation and maintenance log retention, adapting to the standardized wiring and commissioning of small and medium-sized intelligent buildings; it is convenient for disassembly, debugging and maintenance in the later stage, and single-channel faults do not affect the normal operation of the other loop, adapting to the simple management and efficient operation and maintenance needs of small and medium-sized scenarios.
• Product Attributes: Adopting industrial-grade high-strength and durable design, it has the characteristics of strong anti-electromagnetic interference, wide temperature adaptation (-10℃~55℃), moisture resistance and resistance to slight vibration, with a protection level of IP20. It can stably work in complex electrical environments such as small building distribution boxes and control cabinets; compact in structure, it fits the installation layout of small and medium-sized load control equipment, smaller in size than multi-loop models in the same series, saving installation space, supporting 24-hour continuous and stable operation, and the shell is made of flame-retardant and high-temperature-resistant material, adapting to the needs of long-term high-load industrial-grade use, and its service life is much longer than that of conventional single-loop products of the same specification.
• Core Features: Built-in quadruple electrical protection of overload, short circuit, over-temperature and over-current, forming a full closed-loop management of "detection-early warning-protection-quick disposal" combined with 2-fold independent current detection function, optimizing 2-fold independent heat dissipation structure and on-off control logic to reduce equipment start-stop loss. It is adapted to wide voltage input (100-240V AC), compatible with building power grid standards in different countries/regions, with strong versatility, no need for additional adaptive accessories, and can be directly put into installation and use. 2-fold centralized management can effectively reduce the operation and maintenance cost and management difficulty of dual-loop loads in small and medium-sized scenarios.

2. Core Application Scenarios

• Small & Medium-Sized Commercial Scenarios: Start-stop, linkage control and 2-fold independent current monitoring of dual-partition LED lighting, dual-loop ventilation fans, and small landscape lighting dual-loops in small and medium-sized supermarkets, community shops, boutiques and small exhibition halls. 2-fold independent management can realize time-sharing opening of lighting and ventilation in different areas, real-time early warning of single-channel current abnormalities, ensure the normal operation of commercial scenarios, and save installation space and operation and maintenance costs, adapting to the management budget and scenario needs of small and medium-sized commerce.
• Industrial Building Auxiliary Dual-Loop: On-off control and 2-fold independent current detection of dual-partition auxiliary lighting in workshops, two computer room capacitive cooling fans, and dual-area ventilation equipment in warehouses in standard factories. 2-fold independent control adapts to the management needs of industrial auxiliary dual-loops, real-time monitors the current fluctuation of each load, avoids faults of auxiliary equipment caused by single-channel current abnormalities, ensures production continuity, and single-channel faults can be handled independently without affecting the overall operation, adapting to the space layout of industrial auxiliary areas.
• Public Area Dual-Partition Scenarios: Control and 2-fold independent current monitoring of dual-classroom lighting in school teaching buildings, dual-consulting room lighting in hospitals, dual-corridor lighting in communities, and dual-section landscape lights in parks. 2-fold centralized management can realize synchronous/time-sharing management of dual partitions, seamless switching between manual and automatic modes, facilitating on-site commissioning and emergency disposal by managers. Industrial-grade durability adapts to high-utilization scenarios in public areas, reducing the frequency of operation and maintenance replacement.
• Small Residences & Smart Park Dual-Loop: Control and 2-fold independent current monitoring of dual-area lighting (living room + dining room) and two small capacitive devices (fresh air + dehumidifier) in mid-to-high-end apartments and villas; centralized linkage control and 2-fold independent current detection of dual-section road lighting and two small capacitive water supply and drainage pumps in small smart parks. The compact 2-fold design does not occupy too much installation space, and independent current detection can real-time grasp the operation status of each device, realizing intelligent and efficient load operation and maintenance in small and medium-sized scenarios.