Product Overview
The ABB DSSR122 48990001-NK is a DC input power supply module designed for use in ABB INFI 90 and Symphony Distributed Control Systems (DCS). It serves as a reliable and stable source / DC power for critical system modules within process automation environments. The DSSR122 converts a wide-range DC input into regulated power outputs required for system controllers, communication interfaces, and I/O modules, ensuring uninterrupted and safe operation / the DCS infrastructure.
The module is built for industrial-grade environments, /fering high efficiency, robust electrical isolation, and protection against transients. With built-in diagnostic LEDs and fault monitoring, it supports efficient maintenance and rapid troubleshooting.
Key Features
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Wide DC input range, ideal for industrial and substation environments
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Provides regulated power output to control and I/O modules
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Designed specifically for ABB INFI 90 and Symphony systems
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Includes status/fault LED indicators for quick diagnostics
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High reliability and long service life in 24/7 operations
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Features electrical isolation and internal protection circuits
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Designed to fit ABB system backplanes
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Operates in redundant and non-redundant power configurations
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Compact form factor suitable for control cabinet mounting
Technical Specifications
| Specification | Details |
|---|---|
| Product Type | DC Input Power Supply Module |
| 型号 Number | DSSR122 |
| 零件号 | 48990001-NK |
| System Compatibility | ABB INFI 90 / Symphony DCS |
| Input Voltage Range | 24–48 VDC |
| Input Current | Depends on load (typically < 5 A) |
| Output Voltage | Regulated 24 VDC (nominal), isolated |
| Output Current | Up to 5 A (load-dependent) |
| Efficiency | >85% (typical) |
| Isolation Voltage | 1500 VDC (input to output) |
| Cooling Method | Convection (no fan) |
| Status Indicators | LEDs for Power OK, Fault, and Operation Status |
| Protection Features | Overvoltage, overcurrent, short-circuit, and thermal shutdown |
| Hot Swappable | Yes, in certain configurations with caution |
| Operating Temperature | 0°C to +60°C |
| Storage Temperature | -40°C to +85°C |
| Humidity | 5% to 95% non-condensing |
| Dimensions | 238.5 x 72 x 162mm |
| 重量 | 2.35 kg |
| Mounting Type | Plug-in, chassis-mounted |
| Compliance | CE, UL, CSA, RoHS |
Industry Applications
The ABB DSSR122 48990001-NK is designed to provide regulated power to ABB DCS modules and is widely used in critical process and infrastructure environments including:
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Power Generation – Control / turbines, boilers, and auxiliary equipment
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Oil & Gas – Platform control systems and refinery automation
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Water & Wastewater Treatment – Pump and valve control systems
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Chemical and Petrochemical Plants – DCS backbone power supply
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Steel and Metals – High-reliability power for heavy-duty automation
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Utility Substations – DC-powered control systems and switchgear automation
Product Advantages
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Industrial-grade reliability with stable DC output and fault protection
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Integrated with ABB DCS infrastructure, ensuring plug-and-play operation
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支持s mission-critical applications with minimal downtime
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Compact and modular design, ideal for control cabinets
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Diagnostic LEDs aid in preventive maintenance
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Ensures safe operation with built-in isolation and protection
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Compatible with redundant power supply systems for high availability
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Field-proven with decades / successful deployment in process industries
常见问题 (FAQ)
1. What systems is the DSSR122 compatible with?
It is designed for ABB INFI 90 and Symphony DCS platforms.
2. Can it be used in redundant power configurations?
Yes, it supports parallel or redundant operation, ensuring continuous power.
3. What is the input voltage range?
It accepts 24–48 VDC, suitable for DC power buses in industrial systems.
4. Is it hot-swappable?
Yes, under certain conditions. Follow ABB’s safety guidelines for hot-replacement.
5. Does it have built-in protection?
Yes, it includes overvoltage, overcurrent, and short-circuit protection.
6. How is its status monitored?
LED indicators on the front panel show Power OK, Fault, and Operation.
7. What’s the output current capacity?
It can provide up to 5 A, depending on load and configuration.
8. Can it operate in high-temperature environments?
It’s rated for operation from 0°C to +60°C, suitable for most industrial settings.
9. Is the power supply isolated?
Yes, it /fers 1500 VDC isolation between input and output sides.
10. Is it still supported by ABB?
Yes, the DSSR122 is still widely used and supported as part / legacy and active ABB DCS systems.
Related ABB INFI 90 / Symphony Power Modules
| 型号 | 描述 |
|---|---|
| DSSR170 | AC Input Power Supply Module |
| DCP10 | Power Distribution Module |
| DSSB146 | I/O Module Power Supply (Isolated) |
| DSTD 110A | Signal 状态ing Module for power interfaces |
| DSSR122-NK | Variant / DSSR122 for special applications |
| INNIS21 | Network Interface Slave Module (powered via DSSR122) |
Popular ABB Industrial Automation Modules
| 型号 | 描述 |
|---|---|
| AI810 | Analog Input Module (4–20 mA, HART capable) |
| DO810 | Digital Output Module (16 channels, 24 VDC) |
| PM864A | CPU Module for AC800M Controllers |
| CI854AK01 | PROFIBUS DP Communication Interface |
| TU810V1 | Module Termination 单位 (MTU) for S800 I/O |
| S800 I/O | Distributed modular I/O system for process control |
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