Product Overview

• Brand: CCC (Compressor Controls Corporation)
• Model: PSMU-350-3
• Type: Industrial Power Supply Module/Unit (PSU)
• Industry: Oil & gas, petrochemicals, power generation, and industrial manufacturing.
• Function: Provides regulated, high-reliability DC power to CCC’s control system components (e.g., MCP-1004 main controllers, IOM I5-1 I/O modules, HMIs) in compressor and turbomachinery control cabinets. It converts AC input power to stable DC output, ensuring consistent operation of sensitive control electronics. The design likely supports redundancy to prevent power-related system downtime in mission-critical applications.

Key Features

1. High-Power Output & Regulation
   • Delivers a rated output power of 350W (inferred from the “350” designation in the model number), sufficient to power multiple control modules in a typical CCC cabinet.
   • Offers tight output voltage regulation (±1% of nominal value, common in industrial PSUs) to protect sensitive electronics from voltage fluctuations, which can cause data corruption or module failure.
2. Redundancy Support
   • Designed for N+1 redundant configuration (standard for critical power supplies). Multiple PSMU-350-3 units can be paralleled; if one unit fails, others automatically compensate to maintain total output power, ensuring uninterrupted system operation.
   • Includes built-in redundancy control logic and current sharing to balance load distribution across parallel units, preventing overloading of individual modules.
3. Wide Input Voltage Range & Surge Protection
   • Accepts a broad AC input voltage range (e.g., 100-240V AC, single-phase or three-phase—common in global industrial settings), adapting to varying site power conditions.
   • Integrates surge and transient protection (e.g., compliance with IEC 61000-4-5) to shield against power spikes caused by grid disturbances or equipment switching.
4. Industrial-Grade Reliability & Diagnostics
   • Constructed with rugged components resistant to vibration, temperature extremes, and electrical interference (EMI/RFI), suitable for harsh compressor station or offshore environments.
   • Equipped with LED status indicators (e.g., power ON, fault, redundancy active) and diagnostic output signals (e.g., dry contact for remote alarm) for quick troubleshooting and remote monitoring.

Key Specifications

1. Electrical Parameters
   • Input Voltage:
     • AC Input: 100-240V AC (single-phase) or 380-480V AC (three-phase) (verify with CCC; the “3” in PSMU-350-3 may indicate three-phase input).
     • Frequency: 50/60 Hz (universal frequency compatibility).
   • Output Voltage: 24V DC (nominal, standard for CCC control modules), with a tolerance range of 22.8-25.2V DC (±5%).
   • Output Current: Maximum 14.6A (calculated from 350W / 24V DC; varies with load).
   • Output Power: 350W (continuous rated power).
   • Efficiency: ≥90% (high efficiency reduces heat generation and energy consumption).
2. Physical & Environmental Attributes
   • Form Factor: Rack-mount design (compatible with CCC’s 19-inch control cabinets), typically 1-2 rack units (U) high.
   • Dimensions: Approximately 483 mm (width) × 44 mm (height, 1U) × 200 mm (depth) (estimated for 1U form factor).
   • Environmental Ratings:
     • Operating Temperature: -10°C to +60°C (suits indoor control rooms and climate-controlled outdoor enclosures).
     • Storage Temperature: -40°C to +85°C.
     • Humidity: 5-95% (non-condensing), resistant to moisture in industrial environments.
     • Vibration/Shock: Compliant with IEC 60068-2-6 (vibration, 5-500 Hz) and IEC 60068-2-27 (shock, 30g peak acceleration).
3. Safety & Compliance
   • Safety Certifications: Likely compliant with IEC/EN 60950-1 (safety of industrial IT equipment) and UL 508 (industrial control equipment).
   • Protection Features:
     • Overcurrent protection (OCP): Shuts down output or limits current if load exceeds rated value.
     • Overvoltage protection (OVP): Triggers shutdown if output voltage exceeds safe thresholds.
     • Overtemperature protection (OTP): Disables the unit if internal temperature exceeds 85°C, preventing component damage.
     • Short-circuit protection (SCP): Safeguards against output short circuits.

Applications

• CCC Control System Power:
  • Primary power source for CCC’s Omnex T6000/T7000 compressor control systems and Centrax turbine control panels.
  • Powers main controllers (e.g., MCP-1004), I/O modules (e.g., IOM I5-1), HMIs, and communication modules in a single control cabinet.
• Redundant Power Systems:
  • Deployed in parallel (2+1 or 3+1 configuration) for mission-critical applications like offshore gas compressors or refinery turbine control, where power failure could cause costly downtime or safety hazards.
• Industrial Control Cabinets:
  • Used as a standalone industrial PSU for third-party control systems requiring stable 24V DC power (compatible with standard industrial components via terminal block connections).

Availability and Support

• Condition: Available as new OEM (through CCC directly) or genuine refurbished (via authorized industrial automation distributors, e.g., EquipNet, Industrial Control Service).
• Warranty: 12-month warranty for new units (covers defects in materials/workmanship); refurbished units typically include a 6-month warranty.
• Documentation:
  • Technical datasheets, wiring diagrams, and installation guides are restricted to CCC’s authorized customers. Request official materials via CCC’s customer portal.
  • Third-party distributors may provide basic wiring schematics and compatibility notes for integration with CCC systems.

Compatibility and Similar Products

• Compatible Systems:
  • CCC Omnex T6000/T7000 Compressor Control Systems.
  • CCC Centrax Turbine Control Panels.
  • All CCC 24V DC-powered modules (e.g., MCP-1004, IOM I5-1, HMI-2000).
  • Third-party 24V DC industrial control components (via terminal block connections).
• Similar CCC Models:
  • CCC PSMU-200-3: 200W variant of the PSMU series (for smaller control systems with lower power demands).
  • CCC PSMU-500-3: 500W high-power variant (for large-scale control cabinets with multiple modules).
  • CCC RPS-350: Redundant power supply system that integrates two PSMU-350-3 units and a redundancy controller in a single enclosure.

Installation and Maintenance Notes

1. Setup Requirements:
   • Mount in a 19-inch rack with proper ventilation (minimum 50 mm clearance above/below to dissipate heat; avoid mounting near heat-generating components like resistors).
   • For redundant operation, connect multiple PSMU-350-3 units to a common DC bus and enable current sharing via the module’s redundancy pins (follow CCC’s wiring diagram).
2. Wiring Guidelines:
   • Use appropriately sized copper wires (e.g., 14 AWG for input, 12 AWG for output) to handle maximum current and minimize voltage drop.
   • Secure input/output wiring to terminal blocks with torque tools (per CCC’s specifications) to prevent loose connections and arcing.
3. Safety & Troubleshooting:
   • Follow lockout-tagout (LOTO) procedures when wiring or servicing the unit to avoid electrical shock from AC input.
   • Use LED indicators to diagnose issues:
     • Steady green: Normal operation.
     • Flashing red: Overcurrent/overtemperature fault.
     • Amber: Redundancy standby mode.
   • For persistent faults, check input voltage stability and load current (overloading is a common cause of OCP/OTP triggers).

Critical Notes

1. Model Designation Clarification: The “3” in PSMU-350-3 likely indicates three-phase AC input. Confirm input phase (single/three-phase) with CCC, as this affects wiring and compatibility with site power.
2. Redundancy Limitations: Parallel operation requires identical PSMU-350-3 units (same revision and firmware). Mixing different models or revisions may cause current imbalance or failover issues.
3. Genuine Parts Only: Use genuine CCC PSMU-350-3 units for critical control systems. Aftermarket power supplies may not meet CCC’s safety certifications (e.g., UL 508) or redundancy logic, risking system instability or component damage.