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Power sensitive electronics
s of safe and
Marine & other rugged environments
Mobile Offices (TV and Radio Vans)
nd Substations
Base Station Power
Industrial Controls
Wide Temperature
DC/DC Converters
VTC300 Series DC/DC Converters
• Ultra-Quiet
•
without interference
• Rugged & Reliable
• Ensure year
trouble free operation
•
•
• Automotive / RV
• Electric Utilities a
•
(Radio & Telecommunications)
•
(OEM Applications)
• Field Work / Constr uction Sites
• Solar / Alternative Power Systems
• Emergency Backup Power (UPS)
This all new single board design incorporates state of the art
switchmode technology for unmatched efficiency and ultra-quiet
operation.
Multiple stages of filtering reduce radiated or conducted noise to very
low levels. Extra features include adjus tab le out put vo lt age, aud ib le and
visual indicators for low input voltage, low output voltage, over
temperature and overload.
Safety features include reverse input protection, over-temperature
shutdown, current limiting, short circuit shutdown, a dry contact alarm
relay output and output overvoltage crowbar. Optional features include
a remote panel monitoring with On-Off control.
We are confident that you will get many years of reliable service from
this Voltage Converter.
• Adjustable output voltage
• Audible & visual indicators for
constant current, low input
voltage, low output voltage &
over-temperature
• Extremely rugged and w e ll s uit ed
for marine and other demanding
environments
• High tolerance for shock and
vibration
• Ultra-quiet low EMI operation
• Current limiting protection
• Reverse input protection
• Output over-voltage
crowbar
• Dry contact output fail
relay
• Remote control option
•
operation Available
• Parallel output di odes
available
• Conformal Coating and/or
Harsh Environment
Ruggedization Available
• 3 year parts and labour
warranty
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-25° to +40°C @ maximum output
(Optional -40°C extra wide temp. operation avail.)
0 - 95°C Relative Humidity
(non-condensing) with optional conformal coating
Audible Noise
NONE Ødb @ 3 ft
Typical Service Life
Input Amps (max)
20 22
Input Fuse (AGC)
25A
Noise on Input
Output Nominal (op)
12 24
Output Volts (DC)
13.6 ± 0.05 27.2 ± 0.05
Output Adjustment
Output Current (A)
25 cont / 35 peak 20 cont / 25 peak
Current Limit
37 Amps 27 Amps
Output Crowbar
Output Ripple & Noise
< 25 mV
Transient Response
< 1V for 50% Surge
Regulation (Line & Load)
< +/- 0.5%
Efficiency
> 90% @ Maximum Output
Length
9.1 in / 23.1 cm
Width
7.8 in / 19.8 cm
Height
2.5 in / 6.4 cm
Material
Finish
Black Anodize / Powder Epoxy Coat
Fastenings
All 18-8 Stainless Steel
Weight
#12 AWG Input Wires (Positive & Negative)
Warranty
3 years
Available From:
Model Number VTC300-32-12 VTC300-32-24
Input Volts (DC)
Duty Cycle
20 – 45 30 – 45
< 25 mV
± 0.5
16.0 ± 0.5V 32.0 ± 1.0V
Peak 20% for 10 min maximum
Continuous 100% for 24 hours per day
Operating Temp.
Range
Humidity
Isolation
Derate Linearly 2.5% per °C from 40°C
> 10 yrs. (87,600 hrs)
Any Input or Output to Case 500 VDC
Input to Output – Common Negative
Connections
Marine Grade Aluminium
4.0 lb / 1.8 kg
Four contact output terminal
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