ABB SS823 3BSE038226R1 Power Voting Unit 24V DC 20A 500W

Technical Specifications

Product Overview

The ABB SS823 (Article Number: 3BSE038226R1) is a high-reliability power voting and overvoltage protection module weighing 870 g (1.9 lbs). Designed for redundant 24 V DC power supply configurations, it supports a rated input power of 500 W and a continuous output current of 20 A. The SS823 ensures uninterrupted power distribution and voltage protection for mission-critical automation systems.

Key Features

• Redundant Power Voting: Enables dual power supply voting to maintain continuous 24 V DC system operation if a primary power unit fails.
• Integrated Overvoltage Protection: Safeguards sensitive downstream control hardware against sudden voltage surges.
• High Current Capacity: Handles up to 20 A rated output current and 500 W input power in a compact footprint.
• Standardized Cabinet Integration: 116 mm width with predefined mounting clearances (15 mm horizontal, 30 mm vertical) for optimal thermal management.

Installation Essentials

Mount the SS823 module vertically inside a control cabinet, observing the recommended mounting clearances of 15 mm on the sides and 30 mm top/bottom to facilitate natural convection cooling. Wire the 24 V DC inputs securely according to polarity standards before connecting the 20 A output load.

Technical FAQs

Q1: What is the main function of the ABB SS823 module?
A1: It acts as a power voter and overvoltage protection unit for dual 24 V DC power supply systems in industrial automation.

Q2: What are the voltage and current ratings for the SS823 3BSE038226R1?
A2: It operates at a nominal 24 V DC input voltage, delivering a rated output current of 20 A and 500 W rated power.

Q3: What is the physical weight and size of this power voting unit?
A3: The unit weighs 870 g (1.9 lbs) and measures 116 mm x 145 mm x 132 mm (W x D x H).