SAMSUNG SSAS-PRO SPSU-X32 heavy-duty rack-mounted
SAMSUNG SSAS-PRO SPSU-X32 is a heavy-duty rack-mounted power supply unit designed to provide regulated DC power and voltage stabilization for the Samsung SSAS-Pro (Ship Automation System Pro) CPU frames,
backplane buses, and I/O expansion racks. Built specifically for critical marine engine rooms, vessel monitoring systems,
and harsh industrial automation environments, the SPSU-X32 converts dual redundant AC/DC primary inputs into stable,
low-noise internal system power. It features built-in surge suppression, overvoltage protection, and seamless power failover capabilities to ensure uninterrupted controller uptime during generator switches or main power supply fluctuations.
Technical Parameter List
| Specification | Parameter Details |
| Manufacturer / Series | Samsung Heavy Industries / SSAS-Pro Automation Series |
| Model | SPSU-X32 (Rack Power Supply Module) |
| Primary Input Voltage | 100V AC – 240V AC (50/60 Hz) / 24V DC Dual Input Capability |
| Output Voltage | Regulated 24V DC / 5V DC System Backplane Power |
| Output Power Rating | High-capacity output designed to power fully populated 32-slot backplane racks |
| Redundancy Support | Hot-swappable dual-redundant power module configuration |
| Efficiency | > 85% at full rated output load |
| Protection Mechanisms | Short-circuit, overcurrent (OCP), overvoltage (OVP), thermal shutdown |
| Power-Fail Signaling | Relay alarm contact for power drop / AC failure status monitoring |
Product Features & Core Advantages
Dual Power Redundancy: Supports seamless failover between dual AC sources or AC/DC battery backup lines to guarantee continuous system uptime.
Marine-Grade Power Conditioning: Features advanced EMI filtering and transient voltage surge suppression to withstand marine diesel generator fluctuations and severe electrical noise.
Hot-Swappable Design: Enables quick online replacement during maintenance without de-energizing or interrupting running CPU control racks.
Integrated Alarm Relays: Includes built-in hardware fault contacts that immediately signal power loss, low output voltage, or module failure to central alarm panels.
Model Classification
SSAS-Pro System & Power Infrastructure Series:
SPSU-X32: Central Backplane Rack Power Supply Unit
RSPC-X32: Main Processing Controller Unit
SPDI-16 / SPDI-24: Digital Input Signal Acquisition Modules
SPDO-16 / SPRDO-16: Transistor & Relay Digital Output Modules
SPAI-16 / SPAO-8: Analog Input & Output Modules
SPRI-16 / SPIRU-16: RTD Temperature & Mixed Universal I/O Modules
Environmental Tolerance Conditions
Operating Temperature: -15°C to +55°C
Storage Temperature: -25°C to +70°C
Relative Humidity: 5% to 95% (non-condensing)
Vibration & Marine Compliance: Certified under major international classification societies (DNV, ABS, LR, KR, NK) for high-vibration shipboard engine room and switchboard installations.
Installation Method
Backplane Insertion: Slide the SPSU-X32 firmly into the dedicated power slot on the SSAS-Pro system rack until the module locks securely into the backplane connector.
AC/DC Line Connection: Wire primary and secondary power supply cables to the heavy-duty input terminal block, observing proper line, neutral, and earth/ground polarity.
Chassis Grounding: Connect the heavy earth grounding lug to the main cabinet ground bar to ensure optimal surge protection and EMI filtering.
Alarm Line Wiring: Connect the power-fail relay output contacts to the central alarm panel or safety monitoring system.
Operating Instructions
Pre-Power Verification: Ensure the input line voltage matches the rated module specification (100–240V AC or 24V DC) prior to applying power.
Status LED Monitoring: Upon powering on, verify the front-panel “POWER OK” indicator shows a solid green light. An amber or unlit LED signals input power loss or an internal output fault.
Redundancy Testing: Periodically test automatic failover by toggling the primary power switch to ensure the secondary backup line instantly assumes the load without resetting the CPU rack.