ABB SD821 3BSC610037R1 Digital Controller

ABB SD821 3BSC610037R1 Digital Controller

Core positioning and basic parameters of the product

1. Core attributes

Product type: AC-DC static conversion power supply (belonging to SD800 series power equipment)

Model identification: SD821 (product name), 3BSC610037R1 (unique product number)

Installation specifications: DIN rail installation, size 45mm (width) × 119mm (height) × 102mm (depth), net weight 0.6kg, suitable for compact layout of industrial control cabinets.

2. Key electrical parameters

Input power supply

115/230V AC， Switch optional switching

Adapt to the voltage of mainstream industrial power grids worldwide

Output power supply

24V DC， Rated current 2.5A

Meet the power supply requirements of automation equipment standards

Protection function

Output overvoltage (≤ 30VDC), short circuit current limiting

Electronic current limiting design to avoid load damage

Isolation performance

Isolation voltage 250V effective value

Ensure the safe isolation of strong and weak electrical systems

Core functions and technological advantages

1. Redundant power supply support

When redundant power supply is required, it can be directly connected to the SS82x series voting unit to achieve dual power hot backup, suitable for continuous power supply needs in key scenarios such as petrochemicals and power monitoring.

2. High reliability design

Fast fault response: When combined with redundant units, the power switching time can be as low as 20 milliseconds to avoid power outages and shutdowns of critical equipment.

Environmental adaptability: Compliant with industrial standards, suitable for harsh environments with temperatures ranging from -10 ℃ to+50 ℃ and humidity ≤ 95% (no condensation).

EMC anti-interference: It has excellent electromagnetic compatibility and reduces the impact of industrial interference on power supply stability.

3. Usability optimization

No need for complex parameter configuration, it can be put into use after wiring is completed, reducing the threshold for on-site debugging.

Equipped with a dedicated power plug cover (model 5FSE707630-103) to enhance wiring safety and protection level.

Application scenarios and system compatibility

1. Typical application areas

Industrial Automation: Provides power to ABB automation components such as S800 I/O modules and AC 800M controllers.

Key industry scenarios: Process industries such as oil and gas, chemical, pharmaceutical, and water treatment that require continuous power supply.

Building and power monitoring: Adapt to the low-voltage power supply requirements of building automation systems and power monitoring terminals.

2. Key points of system integration

It can seamlessly integrate with ABB 800xA control system and serve as a dedicated power supply unit for I/O modules.

When configuring redundancy, it is necessary to strictly follow the SS82x voting unit wiring specifications to ensure reliable triggering of switching logic.

Selection and maintenance precautions

1. Key indicators for selection

Confirm the total power consumption of the load: a single output power of 60W (24V × 2.5A), multiple devices need to calculate the total current superposition.

Redundancy requirement judgment: Non critical scenarios can be used individually, while continuous production scenarios must be paired with SS82x units.

2. Maintenance and troubleshooting

Regular inspection: Clean the dust near the DIN rail every month and check the tightness of the wiring terminals every quarter.

Troubleshooting: If the output is interrupted, first check the position of the input power switch, and then test whether the output short-circuit protection is triggered.

Service support: During the warranty period, ABB after-sales service can be contacted to replace the faulty unit. The product number 3BSC610037R1 needs to be provided for verification.