r sensitive electronics
Ensure years of safe and
The output voltage is easily adjusted 1.0 volts above or below the
output voltage.
Telecom Power Plants
Marine & other Rugged Environments
Military Applications (COTS)
• Ultra-Quiet
• Powe
without interference
• Rugged & Reliable
•
trouble free operation
DC/DC Voltage Converters
VTC615 Isolated Series Voltage Converter
The model VTC615 Voltage Converter supplies either 12V, 24V, or 48
VDC from a 24V, 48V or 72VDC 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.
•
• Electric Utilities and Substations
•
• Base Station Power
• Solar / Alternative Power Systems
• Emergency Power Backup (UPS)
•
• Industrial Controls
• Fuel Cells
standard output voltage. Devices connected to the converter are
protected by an output overvoltage crowbar circuit.
Optional features include a Remote Control, a 19” Rack Mount version,
and/or a Digital Volt Ammeter to allow monitoring of output current and
• 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
• Cycle by cycle current limiting
• Reverse input protection
• Transient Voltage Suppression
• Dry contact output fail relay
• Custom input / output
voltages from 12 to 55 VDC
• Remote control option
• Digital Volt/Ammeter option
• 19” Rackmount Option
(VTC615R)
• Wide-Temperature
operation Available
• Conformal Coating and/or
Harsh Environment
Ruggedization Available
• Ultra-quiet low EMI operation
-25° to +40°C @ maximum output
0 - 95°C @ Relative Humidity
(non-condensing) with optional conformal coating
Audible Noise
NONE Ødb @ 3 ft
Typical Service Life
> 10 yrs. (87,600 hrs)
Output-Case 500VDC (1500VDC @ 48V O/P)
Nominal (ip)
24 48 72
Actual (Vdc)
20-35 40-60 65-90
Input Amps (max)
Input Fuse (ATC)
3 x 15 1 x 25 1 x 15
Noise on Input
< 50 mV
Output Nominal (op)
12 24 48
Output Volts (DC)
40 cont. / 20 cont. / 10 cont. /
45 peak 25 peak 12.5 peak
Output Crowbar
16.0 ± 0.5V 32.0 ± 1.0V 63.9 ± 2.0V
Output Adjustment
±1.0 V
Switching Frequency
60 ± 2 KHz
Idle Power
< 10 Watts
Output Ripple & Noise
Transient Response
< 2V for 50% Surge
Regulation (Line & Load)
< +/- 0.5%
Continuous 100% for 24 hours per day
Efficiency
Length
Width
10.2 in / 25.9 cm
Height
4.3 in / 10.9 cm
Clearance
1 inch (2.5 cm) all around
Material
Marine Grade Aluminium
Finish
Black Anodize / Powder Epoxy Coat
Fastenings
All 18-8 Stainless Steel
Weight
7.0 lb / 3.2 kg
Connections
Four contact output terminals
Warranty
3 years
Safety
Available From:
39.5 20.3 12.6
13.6 ± 0.05 27.2 ± 0.05 54.4 ± 0.05
Output Amps
< 50 mV
Duty Cycle
Peak 20% for 10 min max
> 85% @ Maximum Output
Operating Temp.
Range
Humidity
Isolation
Derate Linearly 2.5% per °C from 40°C
(Optional -40°C extra wide temp. operation avail.)
Input-Case & Input-Output 1500VDC (500V @ 24V I/P)
14.5 in / 36.8 cm
Approval to cETLus standards
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