ThermoRack 401

Precision Thermal Control for Optimal Laser Performance  and Stability

ThermoRack 401 delivers precision thermal control to ± 0.05 °C, even near ambient, and with only two moving parts, it’s whisper quiet and vibration free for advanced optics and
laser applications.

Current Customer Applications:

  • Laser and Industrial Applications
  • Industrial
  • -5 to 45 °C heat or cool
  • Refrigerant free
  • Energy efficient
  • Quiet and vibration free

Solid State Cooling Systems

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Why choose ThermoRack 401?

  • 5 to 50 ºC heat or cool to maintain precise control
  • Very energy efficient
  • Precise temperature control ±0.05º C, even near ambient
  • Universal power input: One model for world-wide us
  • Standard 19” Rack-mount, 4U

Customers choose the ThermoRack for its compact size, quiet operation, precise temperature control and energy-efficiency.

Reliable Freon-Free Thermoelectric Technology
The ThermoRack uses thermoelectric technology, widely used throughout the world for 50 years in various applications from spacecraft to home appliances. With lifetimes exceeding 200,000 hours, the thermoelectric modules at the core of this temperature control system ensure ultra-high intrinsic reliability.

Optimized for Modest Heat Loads
The ThermoRack is now available in a full 400 Watt capacity and is ideal for many laser and industrial applications.

Quiet Operation
With only two moving parts, the pump and cooling fans, the ThermoRack is set up for a quiet operation.

Precise Temperature Control
Because electrons transfer the heat,ThermoRack responds instantaneously to changes in load. The digital PID temperature controller holds to + 0.05° C.

Energy Efficiency
ThermoRack is very energy-efficient. Its thermoelectric modules are powered by a variable-voltage power supply that provides the minimum power required to control the temperature at setpoint, so ThermoRack only draws as much power as needed. Also it has been designed to operate in the modules’ most energy-efficient range.

No Vibration
ThermoRack is virtually vibration-free with the smooth-flow centrifugal pump.


ThermoRack401 coolingcurve MARCH2016

ThermoRack401 pumpcurve March2016



Operating Range: 5°C to 45°C standard
Ambient Temperature: 10°C to 40°C non-condensing
Stability / Repeatability: ± 0.05°C at constant load (even near ambient)
Cooling Capacity1: 315 to 420 Watts @ 20°C (with 20°C ambient) depending on configuration (see curves)
Noise at 1 meter: 2 Fan: < 55 dBA (50% load), <68 dBA (max load)
Quiet: < 48 dBA (50% load), < 58 dBA (max load)
Coolant / Process Fluid: Koolance (27% propylene glycol / water mix)
or 27-50% ethylene glycol / water mix
Process Fluid Fittings: 1/4” CPC with shut off valves
Mating fitting: 1/4" valved CPC to 1/4" hose barb
SSCS P/N: 30-24167-2, Colder P/N: PLCD22004 
Pumps: 2 lpm @ 15 psig centrifugal or 3 lpm configurable gear pump
Tank Volume: 1 liter with level sensor
Wetted Materials: Aluminum, stainless steel and polymers or
Copper, stainless steel, brass and polymers
Size (W x D x H): 19" x 21" x 7" 4U (48 x 53 x 18 cm)
Weight: 39 lbs (18 kg)
Power Input: Universal: 100-240 VAC, 50/60 Hz, 9-4 amp max
Communications: Keypad or USB Interface
Alarms: Temperature, fluid level, system or component failure (display and USB)
Standards: TUV listed to UL, CAN/CSA and EN 61010-1,
CE 61010-1, RoHS compliant
Warranty: 2 years
Note 1:  Cooling capacity will vary with configuration

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