Hackettstown, NJ: When traditional forced air-cooled power modules are
exposed to outdoor, industrial or other harsh environments, they ingest various
contaminants including dust, sand, humidity, corrosive atmospheres, salt, fog,
vermin and other debris. These contaminants cause untimely failures due to
shorts, corrosion and physical damage. Fan filters often add to the problem as
they become clogged, causing over temperature failures as cooling air is choked
off.
The solution is a mechanical and electrical, ruggedized design with convection
cooling that environmentally seals the equipment and protects the components. .
TDI is introducing a complete series of Environmentally Sealed Power Modules
(ESPM). The first modules to be released in this series are the highly efficient
and ruggedized 1000 W and 2700 W units. These modules are designed to
withstand and operate reliably in harsh environments and critical applications.
The ESPM series is also electrically hardened to survive severe AC input
transients.
Performance features include high efficiency operation, wide AC input ranges,
sinusoidal power factor correction, remote control and monitoring, N+1 redundant
parallel operation, EMI conformance and closely regulated and conditioned
output. The internal electronics are encased within the sealed aluminum chassis
that provides environmental protection from the elements. The 1000 W module
is encapsulated with a thermally conductive, flexible silicon elastomer whereas
the 2700 W modules are filled with thermally conductive oil. Both technologies
efficiently conduct heat from the components to the finned chassis and in turn to
the outside cooling air.
The ESPM series are ideally suited for Telecommunications Base Stations,
Towers and Shelters, Off-Shore Platforms, Chemical Plants, Industrial
Processing and Control, Mobile Trucks and Vehicles, and other unsavory
applications. ESPMs are NEMA rated for Watertight, Submersible, Dusttight,
Corrosion Resistant, Steel Resistant and Hazardous Locations. They have an
extended operational temperature range of – 30’C to +55’C after a 30 minute
warm up, which can be extended to +70 ‘C with power derating. Their audible
noise is undetectable. Connection options include tethered cables, terminal
blocks or weather tight connectors. Electrical and mechanical performance
features include:
Input: 1000 W; 90 to 275 Vac
2700 W; 176 to 275 Vac
47 to 63 Hz, single phase
Power Factor: 0.99 typical
Output Voltage: -54V (Contact Factory of other voltages)
Output Current: 1000 W; 20 A max.
2700 W; 50 A max.
Efficiency: >90% at 230 Vac input, 50 to 100% load
Protection: Over-voltage, Over-current, Over-Temp
External Control: Remote Inhibit, Voltage Control, Sensing
Alarms: AC Fail, Output Good
Dimensions (inches): 1000 W; H 4.3 x W 9.25 x D 11
2700 W; H 7.7 x W 8.6 x D 15.5
Weight: 1000 W; 16 lbs
2700 W; 25 lbs
Cooling: Natural convention, no fans or blowers |
