Product Description

Overview

The SS832 (3BSE018358R1) from ABB is a high-efficiency voting unit designed for the S800 I/O system and the Power Panel family. It enables seamless operation of redundant power supply configurations, ensuring that critical equipment remains powered even if one source fails. Compact, DIN-rail mountable, and robustly protected, it is ideal for distributed control systems (DCS), PLC installations, and industrial power networks requiring uninterrupted DC supply.

Key Features and Benefits

Redundant Power Management

• Accepts two independent 24 V DC inputs and delivers a stabilized single output.

• Diode-based voting logic ensures uninterrupted power transfer from the healthy source if one power supply fails.

• Factory-configured voting thresholds for immediate deployment.

High Current Capability

• Supports up to 10 A continuous output current.

• Handles high inrush currents typical of industrial electronic modules without risk of failure.

Visual and Electrical Monitoring

• Front-panel green LEDs indicate proper voltage delivery for each input.

• Dry contact relays signal system faults or loss of input voltage for alarm integration.

Efficiency and Thermal Design

• Minimal voltage drop due to high-quality diodes.

• Convection-cooled design operates reliably in environments up to +60°C without internal fans.

Robust Protection

• Electrical isolation prevents faults from one supply affecting the other.

• Over-current, over-voltage, and reverse polarity protections ensure safe operation.

• Suitable for SELV and PELV applications.

Technical Specifications

Applications

• Redundant DC power configurations for industrial control systems

• PLC and DCS power continuity

• Power supply monitoring and fault signaling in power panels

• Integration with ABB SD83x series power supplies for optimized redundancy

FAQ

Q: Can the SS832 be used with any 24 V DC supply?
A: While compatible with standard 24 V DC sources, optimal performance is achieved with ABB SD832 or SD833 power supplies.

Q: Is hot-swapping supported?
A: Yes, the SS832 can handle live power changes without interrupting the connected load.

Q: What protection features are included?
A: Over-current, over-voltage, reverse polarity, and electrical decoupling between supplies.