Why choose ThermoRack 401? 

  • Our most popular rackmount chiller with over 3,000 units sold
  • Cooling capacities from 315 to 420 watts depending on configuration
  • ±0.05°C Temperature Stability/repeatability, even at ambient temperature
  • Improves laser performance: improves stability, reduces beam variation
  • Compact size: 19” x 21” x 7” 4U
  • Uses thermoelectric technology for high reliability, with no compressor and no Freon
  • Low noise, low vibration
  • Available with either centrifugal pump or long-life gear pump
  • Configurable with either aluminum or copper cold plate to match your system
  • Improved design with even better energy efficiency
  • Universal power – plug in and go anywhere in the world
  • USB or RS232 communications
  • Perfect for any application where a rackmount solution is preferred

Performance

ThermoRack 401 Cooling Curves

ThermoRack 401 Pump Curves

Specifications

Operating Range:
5°C to 45°C standard (-5°C to 45°C LT option)
Ambient Temperature:
10°C to 40°C non-condensing
Stability / Repeatability:
± 0.05°C at constant load (even near ambient)
Cooling Capacity*:
315-420 watts @ 20°C (20°C ambient)
depending on configuration
Noise at 1 meter**:
2 Fan: < 55 dBA (50% load), <63 dBA (with full load)
Quiet: < 48 dBA (50% load), < 58 dBA (with full 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
Pumps:
Centrifugal pump or Magnetic Drive Gear Pump
Flow Rate:
Centrifugal: ~2 lpm @ 15 psig
Gear Pump: 3 lpm @ 30 psig (factory adjustable)
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 cm x 53 cm x 18 cm)
Weight:
39 lbs (18 kg)
Power Input:
Universal: 100-240 VAC, 50/60 Hz, 9-4 amp max
Controls:
Digital PID controller for heating and cooling
Communications:
Keypad, USB or RS232 Interface
Alarms:
Temperature, fluid level, system or component
failure (display and USB or RS232)
Standards:
TUV listed to UL, CAN/CSA and EN 61010-1,
CE 61010-1, RoHS compliant
Warranty:
2 years
* Note: Cooling capacity will vary with configuration
**Note: Noise levels measured with centrifugal pump