---
title: "175 kW L2A Sidecar CDU"
description: "Explore the CDU4175 175 kW L2A Sidecar CDU for data centre liquid-to-air cooling, built for high-density AI and HPC deployments."
---
# CDU4175 L2A 175kW
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CDU4175 L2A 175kW
CDU4175 L2A 175kW
The 175 kW / 52U L2A Sidecar CDU is a liquid-to-air (L2A) cooling solution capable of meeting the cooling requirements of the NVIDIA Vera Rubin NVL72 platform.
It delivers up to 175 kW of cooling capacity at ATD = 10, making it ideal for high-density AI and HPC applications.
Its unique L2A architecture provides high cooling capacity without requiring changes to existing data centre infrastructure. This enables hybrid liquid cooling deployment in conventional air-cooled data centres.
With infrastructure-free installation and rapid deployment, it provides an efficient solution for data centres transitioning from air cooling to liquid cooling.
Features
| Key Feature | Details |
| --- | --- |
| **Ultra-High Deployment Density** | • Optimised for the ideal balance between compact dimensions and cooling performance.
• Delivers up to 175 kW of cooling capacity at ATD = 10, or 125 kW at ATD = 5, within a width of only 900 mm. |
| **Intelligent Monitoring** | • The CDU comes as standard with an intelligent control system.
• It supports local and remote system parameter configuration, operating status monitoring, runtime recording, and alarm information enquiry. System parameters and fault data are automatically stored and retained after power loss. |
| **Hot-Swappable Design** | • The pumps and filters feature a hot-swappable design.
• Tool-free maintenance can be performed on site without system shutdown. |
| **Pump Redundancy** | • Each CDU is equipped with two pumps, supporting cyclical operation and automatic switchover in the event of failure. |
| **Intelligent Control** | • Supports both Constant Flow and Constant Pressure operating modes.
• Allows flexible system configuration to meet different deployment requirements. |
| **Modular Design** | • Supports both standalone and parallel operation.
• A single CDU supports a fully loaded NVIDIA GB300 NVL72 system.
• Two CDUs operating in parallel can support the cooling requirements of NVIDIA Vera Rubin NVL72, including the next-generation Ultra version. |
Technical Specifications
CDU4175 L2A 175kW Specifications
Complete technical data for the Gerchamp Bluearth 175 kW / 52U Liquid-to-Air Sidecar CDU
| Parameter | Specs |
| --- | --- |
| **GENERAL** | - |
| Solution type | L/A air-cooled |
| Cooling capacity | 175 kW @ approach temperature 10°C
Primary flow rate: 22,000 CFM
Secondary flow rate: 175 LPM |
| Dimensions | Assembly: 900(W) × 1300(D) × 2300(H) mm |
| Secondary liquid | Propylene glycol 25 wt% |
| Noise | <85 dB |
| Pump | 1+1 |
| Liquid volume | Assembly: 38 L
CDU: 10 L
Tank: 28 L |
| Operating temperature | Ambient: 35°C
PG25: 45°C/60°C |
| Weight | Assembly: 485/501 kg
RPU: 95/100 kg
Radiator: 120/135 kg |
| Floor loading (wet) | Assembly: 625 kg/m² |
| **POWER SUPPLY** | - |
| Power consumption | 12.5 kW |
| Power input | 3P 380–415 VAC, 50/60 Hz |
| Power redundancy | N+1 |
| **mPUE** | - |
| mPUE | 1.10 |
| **PRIMARY SIDE** | - |
| Primary-side piping connections | 2-inch hose barb fitting |
| Primary-side flow rate | <22,000 CFM |
| **SECONDARY SIDE** | - |
| Secondary-side piping connections | 2-inch sanitary clamp |
| Secondary-side flow rate | <175 LPM |
| Secondary-side design pressure | <2 bar |
| **SYSTEM INTERFACE** | - |
| System interface | 1× RJ45 Ethernet
4× M12 for external leak/liquid level |
| **COMMUNICATION PLATFORM** | - |
| Communication platform | HMI, SNMP, Modbus |
| **MONITORING** | - |
| Monitoring | • 4× temperature: secondary inlet/outlet and ambient/dew point
• 4× pressure: secondary inlet/outlet
• 1× flow rate: secondary
• 5× leak detection: internal/external
• 2× liquid level: external
• Power meter |
Swipe horizontally to view all specifications.
### Related Content
#### Related Solutions
- [Liquid Cooling Solutions](https://www.gerchamp.com/en-GB/solutions/liquid-cooling-solutions) ([Agent MD](https://www.gerchamp.com/en-GB/solutions/liquid-cooling-solutions/raw.md)) - Discover liquid cooling infrastructure including Coolant Distribution Units (CDUs) and Direct Liquid Cooling Cabinets (DLCCs) for AI, HPC and high-density data centres. Improve thermal efficiency, scalability and reliable cooling performance.
#### Related Documents & Downloads
- [Gerchamp-CDU4175 L2A 175kW Leaflet A0.pdf](/media/d/gerchamp-cdu4175-l2a-175kw-leaflet-a0.pdf) -
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