Waters / Micromass Quattro LC Triple-Unit Modular DC Power Supply Assembly — Coutant Lambda Alpha 400W (CA400 28G / H40044)

Genuine OEM Waters / Micromass Triple-Unit Modular Switching DC Power Supply Sub-Assembly featuring three ganged Coutant Lambda Alpha 400W modular power supplies mounted on their original factory galvanized steel chassis bracket, removed in clean working condition from a functioning Micromass Quattro LC Triple-Quadrupole LC-MS/MS Mass Spectrometer.

This heavy-duty 3-unit low-voltage and medium-voltage DC power distribution bank supplies regulated DC rails (including high-current 28V 14A and multi-rail logic/analog supply voltages) to the Quattro LC mass spectrometer's electronics, RF generators, vacuum gauge controllers, and valve/interlock boards.

Power Supply Identification & Specifications

• Manufacturer: Coutant Lambda (A Siebe Group Product, Made in the U.K.) / Waters Micromass OEM
• Power Supply Series: Coutant Lambda Alpha 400W Modular Switch-Mode Power Supply Bank (3 Units Mounted on Common Chassis Bracket)
• Outer Unit Model / Code: CA400 28G | Part Number: H40044 | Serial Number: 0000022067 | Mfg Date: 19 Jul 99 (QA Sticker: ATE 34 / FT)
• Input Ratings (Per Unit): Nominal 100–230V~ AC (Max Input Range 90–255V~ AC), 47–63 Hz, Max Input Current 7A, Internal Fuse F1: F10AH 250V, 3-Blade 6.35 mm Faston AC Input Receptacle (L, N, Earth)
• Maximum Output Power: 400W per Alpha 400W unit (1,200W combined 3-unit bank capacity)
• Installed Output Module Configuration Across the 3 Units:
  • Unit 1 (CA400 28G / H40044): G Module — 28V DC @ 14A heavy-duty screw-terminal output with OVP & remote sense
  • Unit 2 (Center Unit): Multi-slot configuration with 1x heavy-duty high-current screw-terminal module + 2x multi-rail Faston blade output modules
  • Unit 3 (Right Unit): Multi-slot configuration with 3x dual-output Faston blade regulated DC modules
• Cooling & Construction: Individual rear axial cooling fans with chrome finger guards on all 3 units, mounted to the original Micromass galvanized steel chassis plate
• Safety Approvals: UL Recognized, CSA Level 6 (LR91780), BSI Kitemark (EN60950), CE
• Compatible Systems: Micromass Quattro LC, Quattro Ultima, Platform, and related Micromass / Waters MS Systems
• Internal Reference SKU: 2026102615

Condition

• Clean working pull from a functioning Micromass Quattro LC mass spectrometer system.
• All three Coutant Lambda Alpha 400W power supply modules, screw and Faston output terminals, voltage-trim potentiometers, rear cooling fans, AC input blades, and the steel mounting bracket are clean and intact.
• Includes the complete 3-unit Coutant Lambda Alpha 400W power supply assembly on its mounting bracket exactly as pictured.