Manufacture	ABB
Item No	SD821
Article number	3BSC610037R1
Series	800XA Control Systems
Origin	Sweden
Dimension	51*127*102(mm)
Weight	0.5kg
Customs Tariff Number	85389091
Type	Power Supply Device

 ABB SD821 3BSC610037R1 Power Supply Device SD821 is ABB power supply device switching module, which is an important component of the control system. It is mainly used to ensure the stable supply of power in industrial environments, and can achieve accurate power switching to ensure the reliable operation of the system. Manufactured with advanced technology, it has stable performance and can work stably for a long time, reducing equipment failures and downtime caused by power problems. It can also switch quickly and accurately between different power sources to ensure that the equipment can continue to obtain stable power when the power supply fluctuates or fails, avoiding data loss and equipment damage. With its compact size and reasonable structural design, it can be easily installed in the control cabinet or distribution box of various industrial equipment, saving space while facilitating system integration and maintenance.Supports 115/230V AC input, which can be selected according to actual needs. The output is 24V DC, which can provide stable DC power for various devices in industrial control systems. The maximum output current is 2.5A, which can meet the power needs of most industrial equipment. It is about 0.6 kg, light in weight, easy to install and carry. Application areas: Manufacturing: such as automobile manufacturing, mechanical processing, electronic manufacturing and other industries, providing reliable power support for automation equipment, robots, PLC controllers, etc. on the production line. Oil and gas: In the mining, processing, transportation and other links of oil and gas, it is used to provide stable power for various instruments, control equipment, communication equipment, etc. Public utilities: Including electricity, water supply, sewage treatment and other fields, providing power guarantee for related automation control systems, monitoring equipment. Frequently asked questions about the product are as follows: -What are the functions of the ABB SD821 module? The ABB SD821 module processes digital safety signals in a Safety Instrumented System (SIS). It is the interface between safety-related field devices and the control system. -What types of signals does the SD821 module support? Digital inputs are used to receive safety-related signals from field devices such as emergency stop switches, safety relays, and safety sensors. Digital outputs are used to send safety control signals to field devices such as safety relays, actuators, alarms, or shutdown systems to trigger safety actions. -How does the SD821 module integrate into the ABB 800xA or S800 I/O system? The SD821 module integrates into the ABB 800xA or S800 I/O system via Fieldbus or Modbus communication protocols. It is configured and managed using ABB's 800xA Engineering Tools, allowing users to monitor and diagnose the status of the module.