Description
Product Overview
The ABB SD833 3BSC610066R1 is a DIN-rail-mounted industrial switch-mode power supply designed to deliver regulated 24 V DC power to control and I/O equipment. Rated at 10 A and 240 W, it belongs to ABB’s SD83x power supply family and is listed for use with control-system hardware associated with System 800xA, Symphony Plus, and other compatible ABB automation platforms. Its selectable AC input supports 100–120 V AC and 200–240 V AC supplies, making it suitable for control cabinets designed around either input range.
In a DCS or PLC cabinet, power quality directly affects controller availability, I/O stability, and the behavior of connected field-interface equipment. The SD833 includes output overcurrent limiting and overvoltage protection, protective separation between primary and secondary circuits, and a soft-start function. ABB’s published data lists efficiency of up to 91.6%, peak-to-peak output ripple below 50 mV, and a maximum ambient operating temperature of 55°C. The rated output current is 10 A, while the datasheet specifies a maximum of 12 A below 45°C ambient; the 12 A figure should not be treated as the standard continuous design rating without checking the applicable operating conditions.
For replacement procurement, the ABB SD833 3BSC610066R1 should be selected based on the actual load, incoming supply, cabinet temperature, and redundancy design. ABB indicates that redundant applications require a compatible diode voting unit, such as the SS823 or SS832, depending on the required arrangement. The SD833 itself does not provide a supervision relay, so do not assume it supplies a dedicated power-failure contact for external alarming. Before commissioning a replacement, verify protective-earth bonding, input wiring, output polarity, downstream load current, and the requirements of the connected voting hardware.
Product Introduction
The SD833 is intended for industrial cabinets that need a 24 V DC supply for automation controllers, I/O assemblies, and associated control equipment. Its compact enclosure and DIN-rail installation help fit it into established control-panel layouts. With a published IP20 protection rating, it is intended for installation inside a suitable enclosure rather than direct exposure to dust, water, or outdoor conditions.
When replacing an existing unit, check whether the system operates from a single supply or a redundant pair, and confirm that any voting unit is compatible with the planned arrangement. Measure the actual load rather than assuming the connected equipment draws less than 10 A. If the cabinet operates at elevated temperatures, account for the manufacturer’s ambient-temperature limits and current derating conditions. After installation, verify the 24 V DC output under load and check for abnormal heating or voltage drop.
Key Technical Specifications
| Parameter | Specification |
|---|---|
| Manufacturer | ABB |
| Product model | SD833 |
| Part number | 3BSC610066R1 |
| Product type | Industrial switch-mode power supply |
| Rated output voltage | 24 V DC |
| Rated output current | 10 A |
| Rated output power | 240 W |
| Input voltage | 100–120 V AC or 200–240 V AC, auto-select |
| Permitted AC input variation | ±10% of the specified input ranges |
| Input frequency | 50–60 Hz, ±6% |
| Efficiency | 91% / 91.6%, depending on input condition |
| Output ripple | Less than 50 mV peak-to-peak |
| Output voltage regulation | Less than 70 mV / 100 mV at maximum current, depending on input condition |
| Maximum output current | 12 A below 45°C ambient, per datasheet |
| Maximum ambient temperature | 55°C |
| Protection | Output overcurrent limiting and overvoltage protection |
| Redundant operation | Requires a compatible SD8xx voting unit |
| Supervision relay | No |
| Mounting | DIN rail |
| Protection rating | IP20 |
| Dimensions | 60 mm W × 117 mm D × 124 mm H |
| Weight | Approximately 700 g |
| Standards | IEC 61131-2, UL 508, EN 50178 |
| Hazardous-area suitability | Not listed for ATEX Zone 2, IECEx Zone 2, or Class I Division 2 |
SD833
Related Products
- ABB SD831 — 3BSC610064R1: 24 V DC, 3 A power supply for lower-current loads.
- ABB SD832 — 3BSC610065R1: 24 V DC, 5 A power supply.
- ABB SD834 — 3BSC610067R1: 24 V DC, 20 A power supply for higher-current applications.
- ABB SS832: Voting unit used in compatible redundant power arrangements.
- ABB SS823: Voting and overvoltage-protection unit for supported redundant configurations.
These products share the broader ABB power-supply and voting portfolio, but they are not all direct replacements. Confirm current requirements, mounting, wiring, and redundancy compatibility before substituting one model for another.
Frequently Asked Questions
Q1: What is the ABB used for?
It supplies regulated 24 V DC power to compatible industrial control and I/O equipment in automation cabinets.
Q2: What is the output rating of 3BSC610066R1?
The rated output is 24 V DC at 10 A, equivalent to 240 W.
Q3: Does the accept both 120 V and 230 V AC?
Yes. The specified AC input ranges are 100–120 V and 200–240 V, with automatic input selection. Confirm that the actual supply falls within the documented range before connection.
Q4: Can the be used in a redundant power system?
Yes, in a supported configuration with a compatible SD8xx voting unit. Confirm the required voting hardware and wiring arrangement before installation.
Q5: Does the have a power-failure alarm relay?
The published datasheet lists no supervision relay. If the application requires external power-failure monitoring, check the system design for a separate monitoring solution.
Q6: Can SD834 replace ?
Not as a simple like-for-like substitution. SD834 has a higher 20 A output rating and different physical dimensions. Verify cabinet space, wiring, protection, and the downstream system requirements first.
Q7: What should I inspect when buying a replacement ?
Confirm the model and part number, input and output terminal condition, enclosure integrity, and whether the unit is new, used, or refurbished. For critical control cabinets, request documented testing and verify output voltage under load before reconnecting the controller and I/O equipment.
Procurement Recommendation
The ABB 3BSC610066R1 is a 24 V DC, 10 A industrial power supply. Before purchasing, confirm the incoming AC range, total downstream load, cabinet temperature, and whether the installation uses a voting unit for redundancy. Request the actual unit’s label and condition details, and require functional testing appropriate to the unit’s condition. During commissioning, verify the DC output under load and confirm that the supply arrangement meets the control system’s availability requirements.
