A
Direct-to-Air Thermoelectric Assemblies
PowerCool Series
DA-280-48-02-00-00
The PowerCool Series direct-to-air thermoelectric assembly is a high performance
thermoelectric based heat pump. It is designed to temperature control small chambers
used in medical diagnostics or sample storage compartments in analytical instrumentation.
This unique design offers a high performance hot side heat dissipation mechanism that
convects heat more efficiently than conventional heat exchanger technologies.
The design utilizes custom thermoelectric modules to maximize cooling capacity and
premium grade fans to reduce noise. Moisture resistant insulation is used to keep
condensation from penetrating into the TEM cavity. This unit operates on 48 VDC and is
designed for indoor lab use environment. Custom configurations available upon request.
Laird Manufacturer Part Number: 387002415
FEATURES
•
•
•
•
High Performance
Compact Form Factor
Reliable Solid-State Operation
RoHS Compliant
APPLICATIONS
•
Analytical storage
compartment temperature
control
Medical diagnostic
chamber refrigeration
•
TEA Model
Heat Transfer, Cold Side
Heat Transfer, Hot Side
Cooling Power
@ ΔT=0°C and Ta=25°C, Tolerance ± 10%
- W
TEM Input Power
Voltage, Nominal, - VDC
Current, Nominal/Initial @
Δ T=0°C
and
Ta=25°C,
Tolerance
± 10%
- A
Fan Input Power
Voltage, Nominal - VDC
Current, Nominal - A
Fan Noise - dBA
Dimensions (L x W x H) - mm
Weight - kg
Operating Temperature -
°C
Packaging
TECHNICAL SPECIFICATIONS
DA-280-48-02-00-00
Direct
Air
281
48
5.6/6.5
24
0.7
60
400 x 180 x 135
6.194
-20 to 55
Individual cardboard box
AA-
DA-280-48-02-00-00 1018
DA-280-48-02-00-00
Thermoelectric Assemblies
PERFORMANCE QC VS
ΔT
TEA performance at Ta=25°C
300
280
260
240
220
200
180
160
140
120
100
80
60
40
20
0
Qc (W)
0
5 10 15 20 25 30 35 40 45 50
ΔT
(℃)
ISOMETIC DRAWINGS
ELECTRICAL CONNECTIONS 48 VDC (CAGE CLAMP)
WIRE
TYPE
18
AWG
OBJECT
TEM +
TEM -
FAN +
FAN -
COLOR
Red
Black
Red
Black
POLE
1
2
3
4
Warning:
Do not reverse current or use PWM-regulation on fan supply.
SERVICE
Units are generally maintenance free, however occasionally it is recommended to clean the heat sinks and fans of debris. This is best done
with compressed air.
DA-280-48-02-00-00 1018
DA-280-48-02-00-00
Thermoelectric Assemblies
INSTALLATION INSTRUCTIONS
1.
2.
3.
4.
5.
The TE assembly must be protected from external force or violence.
The power line to the assembly needs to be protected by a fuse. The fuse rating should be of at least the nominal current of the assemb
150% of rated current for at least 60 seconds. This is valid at Ta=35°C. Fuse ratings for other ambient temperatures (X°C) can be calcula
I[X°C]=I[35°C]/(1+0.005*(X-35)). This is valid when regulating with an ON/OFF regulation. At rapid temperature cycling where this is app
need for even higher fuse ratings.
Cooled parts need to be isolated from air humidity to minimize risk for condensation and thermally insulated for best performance.
Max ripple on supplied power =5%.
Switching power to TEMs at frequencies between 0.01 Hz to 5 kHz will render premature failure of modules and must be avoided.
Americas: +1.19.597.7300
Europe: +46.31.420530
Asia: +86.755.2714.1166
ets.sales@lairdtech.com
www.lairdtech.com
Laird warrants to the original end user customer of its products that its products are free from defects in material and workmanship. Subject to conditions and limitations
Laird will, at its option, either repair or replace any part of its products that prove defective because of improper workmanship or materials. This limited warranty is in force
for the useful lifetime of the original end product into which the Laird product is installed. Useful lifetime of the original end product may vary but is not to exceed five (5)
years from the original date of the end product purchase.
Any information furnished by Laird Inc. and its agents is believed to be accurate and reliable. All specifications are subject to change without notice. Responsibility for the use and
application of Laird materials rests with the end user, since Laird and its agents cannot be aware of all potential uses. Laird makes no warranties as to the fitness,
merchantability or suitability of any Laird materials or products for any specific or general uses. Laird shall not be liable for incidental or consequential damages of any kind. All Laird
products are sold pursuant to the Laird Terms and Conditions of sale in effect from time to time, a copy of which will be furnished upon request.
© Copyright 2018 Laird Inc. All Rights Reserved. Laird, Laird Technologies, the Laird Logo, and other marks are trademarks or registered trademarks of Laird Inc. or an affiliate company
thereof. Other product or service names may be the property of third parties. Nothing herein provides a license under any Laird or any third party intellectual property rights.
DA-280-48-02-00-00 1018
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