ABB Advant DSSB145 Master Power Supply Units
Manufacturer: ABB
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Part Number: DSSB145
Condition：New with Original Package
Product Type: Power Supply Units
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Country of Origin: Sweden
Payment:T/T, Western Union
Shipping port: Xiamen
Warranty: 12 months
ABB DSSB145 Advant Master Power Supply Unit
The ABB DSSB145, also cataloged as the DSSB145 DC Power Supply Unit, operates as a dedicated hardware component for direct internal voltage regulation within ABB Advant Master and S100 I/O systems.
Hardware Specifications
| Parameter | Specification |
|---|---|
| Model | DSSB145 (48980001-AA) |
| Brand | ABB |
| Origin | Sweden / Germany |
| Weight | 0.3-0.4 kg |
| Dimensions | 180 x 120 x 20 mm |
| Operating Temp | 0 to 55 deg C |
| Power Consumption | 5 VDC output power up to 100 W capacity |
| Input Voltage | 24 VDC |
| Output Voltage | 5 VDC (regulated) |
| Output Current Capacity | 20 A |
| Form Factor | Euro-card format rack-mounted module |
| Protection Rating | IP20 |
| Integrated Protection | Overload, short-circuit, and thermal monitoring |
Backplane Bus Powering & Deterministic I/O Density Scaling
The DSSB145 conditions incoming 24 VDC auxiliary power to supply a stable 5 VDC output rail across the S100 I/O rack backplane bus. Maintaining regulated logic voltage prevents backplane bus communication velocity degradation when scaling high channel density sub-modules. The internal power management architecture coordinates thermal dissipation profiles with onboard overload and short-circuit monitoring circuits, maintaining firmware flash compatibility and uninterrupted backplane bus operation across connected control nodes.
Frequently Asked Questions
Q: How does the DSSB145 handle short-circuit conditions on the backplane logic rail?
A: The onboard protection circuitry detects short-circuit states on the output side and limits the current output, preventing overcurrent propagation from damaging the S100 I/O rack backplane.
Q: Can the DSSB145 be replaced while power is applied to the overall cabinet?
A: Hot-swapping requires verifying the specific rack backplane power distribution design; system power must be isolated or shifted to a redundant supply line prior to disengaging Euro-card retention locks to prevent transient bus disruptions.
Field Installation Guidelines
Insert the DSSB145 Euro-card unit into the dedicated slot of the S100 I/O rack guide rails, sliding it firmly until the backplane connectors seat completely. Fasten the front panel mounting screws to secure mechanical alignment and establish proper grounding through the sub-rack frame. Connect the incoming 24 VDC field power supply wiring using specified wire gauges, ensuring correct terminal polarity. Maintain unobstructed air clearance above and below the Euro-card rack frame to support vertical convection cooling across the internal heat sink structure.