Skip to content

Coolant Distribution

KX-CDU L600

Mid-Range Liquid-to-Liquid CDU

600 kW in a single-row footprint — the right size for a first liquid cooling pod without over-buying capacity.

Rated capacity
600 kW
Per rack
30 kW
Nominal Delta-T
10 K
Nominal flow
861 L/min
Supply water
W20 – W45 (20 – 45 °C)
Max pressure
6.0 bar
Partial PUE
1.07
Working fluid
Treated water or PG25 on both circuits
Full specifications
Mid-size coolant distribution unit cabinet with visible plate heat exchanger and blue and red coolant piping

Most sites do not start their liquid cooling programme with a whole hall. They start with one pod: eight to twelve racks of accelerated compute, usually squeezed into a room that was designed for something much gentler. The KX-CDU L600 is built for exactly that project.

Right-sized, not cut down

The L600 is not a de-rated L1300. It uses the same isolation architecture, the same control firmware and the same N+1 pump philosophy, in a cabinet narrow enough to fit where the space actually exists. Nothing about the engineering is provisional just because the capacity is smaller.

Front service only

Every serviceable component — pumps, filters, sensors, controllers — comes out through the front. The unit can sit flat against a wall or at the end of a row without a rear clearance allowance, which is usually the difference between a plan that fits and one that does not.

Growing past it

L600 units can be manifolded in parallel as the pod grows, sharing a common secondary loop with automatic load balancing. When you outgrow two of them, the L1300 uses the same pipe sizes and the same control integration, so the expansion is mechanical rather than architectural.

Technical data

Full specification

Values are at nominal duty. Ask us for the full performance map if you are working outside these conditions.

Technical specifications
Rated capacity 600 kW
Configuration Liquid-to-liquid, isolated
Primary supply temperature 20 – 45 °C
Nominal Delta-T 10 K
Secondary flow rate 861 L/min
Secondary temperature stability ±0.5 K
Maximum working pressure 6 bar
Pump configuration N+1 hot-swap centrifugal
Filtration 50 µm inline
Electrical supply 400 V 3-phase, 50/60 Hz
Communications Modbus TCP, BACnet/IP, SNMP v3
Footprint (W × D × H) 700 × 1,100 × 2,000 mm
Dry weight 520 kg
Partial PUE contribution 1.07

Module 05 — Flow envelope

Delta-T against required flow

This unit rejects 600 kW. Widening the temperature difference across the loop cuts the volume of water you have to move — and pump power falls with roughly the cube of flow.

0 625 1,250 1,875 2,500 4 K 8 K 12 K 16 K 20 K Flow — L/min Loop Delta-T
Required flow
861 L/min
Return temperature
40.0 °C at W30 supply
Relative pump power
100 % of nominal

Water at 4.18 kJ/kg·K, density taken as 1 kg/L. Pump power index scales with the cube of the flow ratio against this unit’s nominal 10.0 K design point.

Related

Others in this range