Overview
The ABB SB821 Battery Unit is engineered to provide secure backup power for industrial automation systems. It is DIN‑rail mounted, lightweight, and optimized for long‑term reliability. Moreover, it plays a critical role in maintaining volatile memory and protecting essential configurations in ABB’s Advant OCS and AC 800M controllers. In addition, its robust design ensures dependable performance across diverse industrial environments, from chemical plants to power generation facilities.
Technical Data
| Specification | Value / Description |
|---|---|
| Product Type | Battery Unit SB821 |
| Dimensions | 136 × 59 × 86 mm |
| Weight | 0.5 kg |
Typical Applications
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Process industries: Ensures uninterrupted control of actuators, valves, and dosing systems.
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Power generation: Provides backup for turbine and boiler control systems.
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Chemical and pharmaceutical plants: Maintains recipe and batch data during outages.
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Water treatment facilities: Supports pump and mixer control systems.
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Manufacturing automation: Protects servo and proportional device configurations.
For instance, engineers often deploy the SB821 in distributed control systems where memory integrity is critical. Moreover, its compact footprint and ease of installation make it a preferred choice for retrofit projects and new automation lines.
FAQ
Q1: What is the primary function of the SB821?
A1: It provides backup power to CPUs and volatile memory, preventing data loss during outages.
Q2: Is the SB821 compatible with ABB’s AC 800M controllers?
A2: Yes, it is specifically designed for AC 800M and S800 I/O systems.
Q3: How is the SB821 installed?
A3: It is DIN‑rail mounted, allowing quick and secure installation in control cabinets.
Q4: What industries typically use the SB821?
A4: It is widely applied in power generation, chemical processing, water treatment, and advanced manufacturing.
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