ABB DSSB146 48980001-AP is a DC conversion module under the DSSB series of industrial power conversion devices. Compatible with the Advant OCS control system architecture, it undertakes DC voltage conversion as well as voltage regulation for battery charging and discharging within the system.
Adopting a proven semiconductor circuit design, the module maintains stable output voltage under industrial operating conditions with wide temperature ranges and severe voltage fluctuations. It provides clean DC power supply circuits for controller boards, detection units and backup energy storage batteries, and suits various matching scenarios of energy storage equipment and automation main controllers.
The unit features an integrated encapsulated structure that can be directly installed into standard slots of control cabinets without extra adapter housings. It holds multiple international electrical safety certifications including UL, CE and RoHS, complying with equipment compliance standards for deployment across regions worldwide.
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Model Code Interpretation
Full Model Code: DSSB146 48980001-AP
DSSB: Product series code, representing the general category of DC/DC conversion power modules, specially designed for energy storage and voltage regulation units in industrial control systems.
146: Sub-series specification code, used to distinguish rated output power, current ratings and compatible battery management logic, corresponding to built-in charge and discharge control circuits for batteries.
48980001: Basic material order number, a globally unified inventory identifier for purchasing, customs clearance and warehouse inbound & outbound registration.
AP: Version suffix code indicating hardware revision batch. The AP version features optimized low-temperature startup circuits to enhance startup stability under sub-zero operating conditions, differing from older suffix versions such as P and A.
Product Features
The module accepts standard industrial AC input voltages and delivers steady converted DC output. Equipped with an independent built-in battery management circuit, it monitors storage battery voltage and charge/discharge current in real time, and automatically switches between float charge and equalization charge modes to prevent battery aging caused by overcharging or undercharging.
With an IP20 protection rating, the module is only applicable for sealed cabinet installation to avoid direct exposure of circuit boards to dust and moisture. It adopts a fanless passive cooling design with no rotating components to reduce potential failure points, suitable for dust-free clean workshops and operating environments with low noise requirements.
On-board status indicator lights display four operating states: power input, normal output, battery charging and fault alarm. Maintenance personnel can directly judge the module operating status without external testing instruments.
The internal circuit adopts an isolated transformer structure to isolate grid interference from the input side and suppress harmonic clutter. It prevents interference with communication buses and analog acquisition signals, ensuring high precision of system data collection.
The module is fitted with standard European pluggable terminals featuring firm insertion and vibration resistance. Terminals will not loosen and cause power loss during long-term operation in cabinets of vibration-prone equipment such as mining machinery and rail transit facilities.
Product Advantages
Wide Operating Condition Adaptability
Its operating ambient temperature ranges from -40°C to +85°C, enabling stable operation in scenarios with drastic temperature fluctuations including high/low temperature workshops, outdoor cabinets and energy storage rooms. The AC input supports a universal industrial frequency band of 47–63 Hz, compatible with power grid standards across all countries.
Multi-Layer Hardware Protection Design
Four independent protection circuits are integrated: overvoltage, overcurrent, short-circuit and overtemperature protection. The output will be automatically cut off in case of voltage surges, circuit short circuits or overloads to prevent damage to precision control boards at the load side. Power supply can resume automatically after faults are cleared, minimizing downtime for maintenance.
High Conversion Efficiency
Power conversion efficiency exceeds 90%, delivering low energy loss during long-term continuous operation. It reduces overall heat generation inside the cabinet and eases the load on cooling fans, thus extending the service life of the entire control system.
Lightweight & Compact Structure
Net weight of the unit is 0.545 kg, with dimensions of 211.5 mm × 121.5 mm × 58.5 mm. It occupies minimal cabinet mounting space, allowing multiple power modules to be stacked in one cabinet for capacity expansion, ideal for renovation projects of compact integrated control cabinets.
Unified System Compatibility
Developed exclusively for ABB Advant series main control systems. No extra signal matching is required for same-series power supplies, I/O boards and communication cards. Connection via pluggable terminals eliminates secondary wiring modification; cabinet wiring does not need alteration when replacing old and new equipment.
Application Industries
- Metallurgy & Metal Processing Backup power supply for DCS control systems matched with rolling mills and wire drawing equipment, ensuring parameter cache storage under power failure conditions.
- Pulp & Paper Production Lines Energy storage and voltage regulation for distributed control cabinets to sustain continuous power supply to online inspection sensors.
- Oil & Gas Production Stations Backup power conversion for underground acquisition main control cabinets, suitable for outdoor wide-temperature cabinets.
- Mining Conveying Equipment DC voltage conversion for backup energy storage units of belt conveyor and crusher control systems.
- Water Treatment & Sewage Purification Backup DC power supply modules for pump station PLC control systems.
- Rail Transit Signal Control Cabinets Voltage regulation devices for battery charging and discharging of trackside control equipment.
- PV Energy Storage Supporting Cabinets Auxiliary DC voltage regulation modules for energy storage units.
- Cement & Building Material Production Lines Voltage stabilizing power supplies for main control systems of kilns and cooling units.
Product Comparison
ABB DSSB146 vs DSSB140
DSSB146 is equipped with a complete intelligent battery charge and discharge management circuit and compatible with large-capacity energy storage batteries, featuring a wider operating temperature range. In contrast, DSSB140 only provides basic voltage stabilization without sophisticated battery management, and is merely matched with small backup batteries. DSSB146 adopts more comprehensive protection logic with multi-level short-circuit protection, while DSSB140 only supports basic overcurrent protection and delivers inferior low-temperature startup performance compared to DSSB146.
ABB DSSB146 vs DSSB-01C
DSSB146 is a standalone DC/DC conversion power module focusing on energy storage battery management. DSSB-01C is a drive rectifier control board designed to convert AC to DC for driving excitation units, with no battery charge and discharge functions. The two models serve completely separate application scenarios and cannot be interchanged.
ABB DSSB146 vs DSSB180
DSSB180 boasts higher output current and power ratings, suitable for large cabinets with multiple parallel-connected battery banks for energy storage. DSSB146 is a medium-power standard model for small and medium-sized control cabinets with a single battery bank. It occupies less installation space and offers better adaptability for equipment renovation projects.
Recommended Models of the Same Series
- DSSB140 (48980001-P) – DC Conversion Power Module
- DSSB180 (48980001-B) – High-Power DC Conversion Unit
- DSSB-01C – Drive Rectifier Control Board
- DSSB130 (48980001-M) – Compact Voltage Stabilizing Conversion Module
- DSSB152 (48980001-C) – DC Converter Dedicated to Energy Storage
- DSSB165 (48980001-D) – Wide-Voltage Input Power Supply Module
- DSSB120 (48980001-S) – Compact DC Power Supply
- DSSB170 (48980001-E) – Conversion Unit for Multiple Parallel Batteries
- DSSB110 (48980001-F) – Voltage Stabilizing Module for Low-Temperature Environments
- DSSB190 (48980001-G) – High-Power Energy Storage Conversion Device
- DSSB02C – Auxiliary Rectifier Control Board
- DSSB142 (48980001-H) – Standard Battery Charge & Discharge Module
- DSSB155 (48980001-J) – Power Supply Unit Specialized for Rail Transit
- DSSB160 (48980001-K) – Voltage Stabilizing Module for Distributed Control Cabinets
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