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- ABB
- SS823
- Power Voting Unit
- Sweden
- 145 × 116 × 132 mm
- 0.87kg
- 3BSE038226R1
- Xiamen, China
- New & In Stock
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ABB SS823 (3BSE038226R1) Product Overview
Product Introduction
The ABB SS823 (part number 3BSE038226R1) is a power voting and over‑voltage protection unit designed for use in high‑integrity distributed control systems (DCS) and redundant power supply configurations. It is engineered to manage and supervise multiple DC input voltages from redundant power units and deliver a stable single output, ensuring continuity of power in safety‑critical automation environments.
This unit includes internal monitoring and protection circuits that detect over‑voltage conditions, faults, and improper inputs while providing visual status indication. Its robust design supports industrial reliability and simplified DIN rail mounting, making it suitable for demanding automation control systems where maintaining continuous, stable power is essential.
The SS823 is a critical component within high‑integrity systems requiring reliable operation of control logic and safety I/O modules.
Product Parameters
| Parameter | Specification |
|---|---|
| Model | ABB SS823 (3BSE038226R1) |
| Product Type | Power Voting Unit / Over‑Voltage Protection |
| Input Voltage | 24 V DC (dual input) |
| Output Voltage | 24 V DC |
| Rated Output Current | 20 A |
| Rated Input Power | 500 W |
| Mounting Type | DIN Rail |
| Status Indicators | LED indication of voltage status |
| Protection Features | Over‑current, over‑voltage protection |
| Isolation | Protective separation of primary and secondary circuits |
| Operating Temperature Range | –25 °C to +70 °C |
| Storage Temperature Range | –40 °C to +85 °C |
| Dimensions (L × W × H) | 145 × 116 × 132 mm |
| Weight | 0.87 kg |
| Certifications | Safety category compliant, industrial approvals |
| Application Context | Redundant power supply systems |
Product Applications
The SS823 power voting unit is used in industrial control and automation systems to ensure reliable and stable distribution of DC power:
• Redundant DC power supply systems for safety‑critical controllers.
• Distributed control systems requiring high integrity power supervision.
• Automation platforms where voltage failsafe and over‑voltage protection are essential.
• Control cabinets in plants where power supply health is monitored and acted upon.
• Process automation requiring seamless transition between power sources to avoid downtime.
• Industrial environments such as chemical, energy, manufacturing, and processing plants.
Product Advantages
• Power Redundancy Handling: Enables seamless operation with dual DC power inputs, automatically selecting the healthy source.
• Over‑Voltage Protection: Internal circuits prevent damage from transient or sustained over‑voltage conditions.
• High Current Capacity: Designed to supply robust 20 A DC power output for control modules.
• Status Indication: Front LED indicators provide real‑time visual feedback of power health.
• DIN Rail Mounting: Compact design supports standard industrial mounting for ease of installation.
• Wide Temperature Operation: Functional across industrial temperature ranges for rugged use.
• System Integrity: Ideal for high‑integrity DCS and safety‑related power systems.
Brand & Series Information
• Brand: ABB
• Series: SS Series — Power Voting and Protection Units for industrial control and redundant power supply architectures.
Recommended Related Models (Same Series)
| Model | Function | Input Voltage | Output Capacity | Dimensions (mm) | Weight (kg) |
|---|---|---|---|---|---|
| SS822 | Power Voting Unit | 24 V DC | 20 A | 145 × 116 × 132 | 0.85 |
| SS824 | Power Voting Unit | 24 V DC | 20 A | 145 × 116 × 132 | 0.87 |
| SS825 | Redundant Power Router | 24 V DC | 30 A | 150 × 120 × 140 | 0.95 |
| SS830 | Power Conditioning Unit | 24 V DC | 25 A | 150 × 120 × 140 | 1.00 |
| SS840 | Over‑Voltage Protection | 24 V DC | 25 A | 160 × 130 × 150 | 1.10 |
Recommended Popular Models (Same Brand)
| Model | Function | Input Voltage | Load Capacity | Dimensions (mm) | Weight (kg) |
|---|---|---|---|---|---|
| D16 | Solid‑State Relay | 24–240 V | 16 A | 85 × 30 × 55 | 0.23 |
| D25 | Solid‑State Relay | 24–240 V | 25 A | 90 × 35 × 60 | 0.30 |
| D40 | Solid‑State Relay | 24–600 V | 40 A | 120 × 50 × 80 | 0.52 |
| T7 | Control Relay | 24–240 V | 7 A | 70 × 25 × 45 | 0.18 |
| T9 | Control Relay | 24–600 V | 9 A | 80 × 30 × 50 | 0.20 |
FAQ – ABB SS823
Q1: What is the primary role of the SS823?
A1: It acts as a power voting and over‑voltage protection unit to manage redundant DC power sources.
Q2: What input voltage does the SS823 require?
A2: The unit requires 24 V DC inputs in a dual arrangement.
Q3: What is the maximum output current rating?
A3: The SS823 is rated for up to 20 A output.
Q4: Can this unit be mounted on a DIN rail?
A4: Yes, it is designed for standard DIN rail mounting.
Q5: What protection features are included?
A5: It includes over‑current and over‑voltage protection and internal health‑monitoring circuits.
Q6: What are the size and weight details?
A6: The dimensions are 145 × 116 × 132 mm and the weight is approximately 0.87 kg.
Q7: Is the SS823 suitable for industrial environments?
A7: Yes, it is robustly designed for industrial power systems and automation control.
Q8: What visual feedback does the SS823 offer?
A8: It includes LED indicators that show power status.
Q9: What is the operating temperature range?
A9: It typically operates between –25 °C and +70 °C.
Q10: What is the key benefit of using a power voting unit?
A10: It enhances system reliability by selecting the best power source and preventing service disruption.