ABB SR511 3BSE000863R0001 Redundant Voltage Regulator Module

Overview

The SR511 (3BSE000863R0001) is a rack-mounted, redundant low-voltage power regulation module developed by ABB for legacy and long-life distributed control platforms. Its primary function is to convert a 24 V DC system supply into a tightly regulated 5 V DC rail used by logic-level electronics, including CPUs, communication interfaces, and I/O subsystems.

Designed for continuous industrial operation, the module incorporates internal redundancy and fast fault isolation to maintain uninterrupted power delivery in critical control environments.

Power Regulation and Redundancy Design

The SR511 (3BSE000863R0001) employs two independent internal regulation channels operating in a redundant configuration. Under normal conditions, one regulator supplies the load while the second remains synchronized in standby. In the event of voltage deviation, overload, or internal failure, the backup regulator assumes full operation automatically, without external intervention or system reset.

This architecture ensures:

• Seamless power continuity for sensitive logic circuits

• Protection against single-point power regulator failure

• Stable voltage output under fluctuating input or load conditions

Integrated monitoring and protection circuitry safeguards against overcurrent, thermal stress, and abnormal input voltage levels.

Electrical Characteristics

• Input Supply Voltage: 24 V DC nominal

• Output Voltage: Regulated 5 V DC

• Regulation Accuracy: ±0.5%

• Output Capacity: Designed for logic-level system loads within Advant Master racks

• Switching Response Time: Less than 1 ms during redundancy changeover

• Internal Architecture: Dual regulator channels with automatic failover

Mechanical and Installation Data

• Form Factor: Plug-in module for ABB system racks

• Mounting Method: Backplane insertion

• Dimensions: 80 mm × 50 mm × 20 mm

• Weight: 0.6 kg

• Status Indication: Front-panel LEDs for power and fault status

Environmental and Compliance Information

• Operating Temperature Range: −40 °C to +85 °C

• Intended Environment: Industrial control cabinets

• RoHS Status: Non-compliant (legacy industrial equipment)

• WEEE Classification: Category 5

System Compatibility and Typical Applications

The SR511 (3BSE000863R0001) is commonly deployed in:

• ABB Advant Master distributed control systems

• Power generation and auxiliary plant control

• Chemical and petrochemical process automation

• Pulp and paper production control systems

• Long-lifecycle DCS installations requiring stable 5 V logic power

It is specifically suited for systems where voltage stability and redundancy are mandatory for safe and reliable operation.

Frequently Asked Questions

Q: Is the SR511 hot-swappable?
A: The module supports replacement according to ABB rack service procedures. System power-down requirements depend on rack configuration and redundancy design.

Q: Does the module provide communication functions?
A: The SR511 itself is a power regulation module. Any diagnostic signaling is handled through system backplane monitoring rather than standalone communication ports.

Q: Can it be used outside Advant Master systems?
A: Electrical compatibility may allow integration into custom systems, but mechanical fit and backplane pinout are specific to ABB control racks.