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ower sensitive ele ctronics
Ensure years of safe and
The output voltage is easily adjusted 1.0 volts above or below the
Marine & other Rugged Environments
Electric Utilities and Substations
Base Station Power
Military Applications (COTS)
•
•
• Ultra-Quiet
• P
without interference
• Rugged & Reliable
•
trouble free operation
DC/DC Voltage Converters
VTC315 Isolated Series Voltage Converter
The model VTC315 Voltage Converter supplies either 12V, 24V, or 48
VDC from a 24V or 48VDC power source.
All new Current Mode switching design offers increased power and
reliability in a compact package. Extra input and output filtering reduce
EMI to extremely low levels. Reliability features include an input fuse,
thermal shutdown, current limiting, reverse battery hookup protection and
output short circuit shutdown with automatic recovery.
• Telecom Power Plants
•
•
•
• Solar / Alternative Power Systems
• Emergency Power Backup (UPS)
•
standard output voltage. Devices connected to the converter are
protected by an output overvoltage crowbar circuit.
Available options include a Remote Control and/or a Digital Volt
Ammeter to monitor output current and voltage.
Fully Isolated Design
• Adjustable output voltage
• Audible & visual indicators for
constant current, low input
voltage, low output voltage &
over-temperature
• Over-temperature shutdown
• Short circuit protection
• Output overvoltage crowbar
• Industrial Controls
• Solar / Alternative Power Systems
• Fuel Cells
• Cycle by cycle current limiting
• Reverse input protection
• Transient Voltage Suppression
Ultra-quiet low EMI
operation
• Dry contact output fail
relay
• Custom input / output
voltages from 8 to 55 VDC
• Remote control option
• Digital Volt/Ammeter
option
• Wide-Temperature
operation Available
• Conformal Coating and/or
Harsh Environment
Ruggedization Available
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-25° to +40°C @ maximum output
0 - 95°C Relative Humidity
Audible Noise
NONE Ødb @ 3 ft
Typical Service Life
> 10 yrs. (87,600 hrs)
Nominal (ip)
24 48 72
Actual (Vdc)
20-35 40-60 65-90
Input Amps (max)
22 9.6 6.5
Input Fuse
MDA25 MDA15 MDA10
Output Nominal (op)
12 24 48
Output Volts (DC)
13.6 ± 0.05 27.2 ± 0.05 54.4 ± 0.05
20 cont. / 10 cont. / 5.0 cont. /
Output Crowbar
16.0 ± 0.5V 32.0 ± 1.0V 63.9 ± 2.0V
Output Adjustment
± 1.0
Switching Frequency
60 ± 2 KHz
Idle Power
< 10 Watts
Output Ripple & Noise
< 25 mV
Transient Response
Regulation (Line & Load)
< +/- 0.5%
Peak 20% for 10 min max
Continuous 100% for 24 hours per day
Efficiency
> 80% @ Maximum Output
Length
9.6 in / 24.4 cm
Width
8.2 in / 20.8 cm
Height
3.5 in / 6.4 cm
Clearance
1 inch (2.5 cm) all around
Material
Finish
Black Anodize / Powder Epoxy Coat
Fastenings
All 18-8 Stainless Steel
Weight
Connections
Four contact output terminal
Warranty
3 years
ABS 11-HS794404B-PDA
Available From:
Noise on Input
Output Amps
Shown without Digital Meter
< 25 mV
22.5 peak 12.5 peak 6.0 peak
Operating Temp.
Range
Humidity
Isolation
Shown with Digital Meter
Derate Linearly 2.5% per °C from 40°C
(Optional -40°C extra wide temp. operation avail.)
(non-condensing) with optional conformal coating
Input-Case & Input-Output 1500VDC (500V @ 24V I/P)
Output-Case 500VDC (1500VDC @ 48V O/P)
Marine Grade Aluminium
< 2V for 50% Surge
Duty Cycle
Safety
7.5 lb / 3.4 kg
Approval to cETLus standards
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