What Is the ABB SS832 Voter?
When designing critical industrial control systems, power supply redundancy is essential to prevent downtime. The ABB SS832 Voter (Article Number 3BSC610068R1) serves as a control unit within a redundant power supply configuration. It connects the outputs from two Power Supply Units, separates them for supervision, and generates signals for the power consumer. This ensures continuous operation even if one supply fails.
Key Technical Specifications
The SS832 Voter offers a rated output current of 10 A (20 A in parallel operation) and a rated input power of 2 x 10 A. It accepts a nominal mains/input voltage of 2x24 V d.c. and includes a supervision relay for status monitoring. The unit dissipates 18 W of heat and has a maximum ambient temperature of 55 °C. Output voltage regulation at max current is 0.85 V typ., and maximum output current is 25 A (overload). The secondary short circuit current is max 25 A RMS.
Industry Applications
This voter is ideal for process control, manufacturing, and marine environments where power redundancy is critical. With marine certifications from ABS, BV, DNV-GL, and LR, it suits offshore and shipboard applications. The unit also complies with CE, IEC 61131-2, UL 508, and EN 50178, making it suitable for global industrial use.
Installation and Setup
Mount the SS832 on a standard DIN rail. It is Class I Equipment when connected to Protective Earth (PE) and supports over-voltage Category III for primary mains connection to TN networks. The unit provides protective separation of secondary circuit from primary circuit and is accepted for SELV and PELV applications. Ensure proper spacing: mounting spacing W is 15 mm (0.59") and H is 25 mm (1").
Maintenance and Reliability
Regularly inspect the green LEDs on the front panel to verify correct output voltage. The unit features over-current protection (current limit) and over-voltage protection (OVP). For reliable operation, keep the ambient temperature below 55 °C and ensure the unit is installed in a pollution degree 2 environment as per IEC 60664-1. The IP20 protection rating requires installation in a clean, dry enclosure.
Compatibility and Integration
The SS832 integrates with ABB power supplies and other 24 V d.c. systems. It includes a supervision relay that provides a voltage-free contact for remote monitoring. The unit is designed for use in TN networks and complies with EMC standards EN 61000-6-4 and EN 61000-6-2, ensuring electromagnetic compatibility.
Selection Guide and Purchasing Advice
Before purchasing, verify your system voltage (2x24 V d.c.) and current requirements (up to 10 A per unit, 20 A in parallel). The SS832 is suitable for SELV and PELV applications. Contact SpareTechPLC for current availability and lifecycle status. We offer competitive pricing and fast shipping for this ABB voter unit.
Frequently Asked Questions
Q: What is the rated output current of the SS832?
A: The rated output current is 10 A, and 20 A in parallel operation.
Q: Does the SS832 include a supervision relay?
A: Yes, it includes a supervision relay that provides a voltage-free contact for status indication.
Q: What certifications does the SS832 hold?
A: It has CE mark, electrical safety per IEC 61131-2, UL 508, EN 50178, and marine certifications from ABS, BV, DNV-GL, LR.
Q: What is the maximum ambient temperature for operation?
A: The maximum ambient temperature is 55 °C.
Q: Is the SS832 suitable for hazardous locations?
A: No, it is not certified for ATEX Zone 2, IECEx Zone 2, or Hazardous Location Class 1 Div 2.
