3BSC610037R1 SD821 ABB Power Supply Device

Product Description

Configured for supplying regulated 24 VDC power in ABB industrial control installations, the ABB 3BSC610037R1 (SD821 Power Supply Device) provides direct AC-to-DC power conversion. The unit accepts switch-selectable 115/230 VAC input and delivers one 24 VDC output rated at 2.5 A. It mounts directly on a DIN rail and occupies a width of 50 mm. For redundant power configurations, the SD821 can connect to an SS82x Voting Unit.

Hardware Specifications

ABB Industrial Control Integration

The 3BSC610037R1 SD821 supports the power distribution requirements of ABB industrial automation hardware through a dedicated 24 VDC output. Unlike an I/O or communication module, the SD821 does not process field signals or execute backplane data communication.

Instead, the unit converts the selected AC input supply into regulated DC power for connected control equipment. DIN-rail mounting also supports structured cabinet installation and simplifies physical replacement during maintenance. When the application requires power redundancy, the specified SS82x Voting Unit provides the required connection arrangement.

Correct input voltage selection remains necessary before energizing the device. In addition, installers should verify conductor sizing, protective devices, and cabinet grounding according to the applicable system documentation and local electrical standards.

Frequently Asked Questions

Q: What input voltage does the ABB 3BSC610037R1 SD821 accept?
A: The SD821 uses a switch-selectable 115/230 VAC input configuration. The provided technical data lists 230 VAC as the rated input voltage.

Q: What DC output does the SD821 provide?
A: The unit provides one 24 VDC output with a maximum output current of 2.5 A.

Q: How can the SD821 be used in a redundant power configuration?
A: The provided ABB information specifies connection to an SS82x Voting Unit when a redundant power application is required. Specific redundancy wiring and system architecture should follow ABB system documentation.

Field Installation Guidelines

• Verify the 115/230 VAC input selector position before applying power.
• Mount the SD821 securely on a compatible DIN rail within the control cabinet.
• Maintain separation between AC input wiring and low-voltage DC output wiring where practical.
• Use conductors and protective devices suitable for the connected electrical circuit and applicable installation standards.
• Connect protective grounding according to the cabinet and ABB system grounding requirements.
• Confirm output polarity and voltage before connecting sensitive control equipment.
• For redundant applications, install the SS82x Voting Unit according to the applicable ABB wiring documentation.
• De-energize the relevant supply circuit before installation, removal, or wiring changes

Other Attributes

• Series: Advant DCS/800xA
• Country of Origin:  Germany/Sweden/Finland
• Lead Time: In Stock, 2 Working Days

In Stock Hot Items of ABB

Our Competitive Brands

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