MajorVTC 1000 Watt Series

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MajorVTC1000 DC to DC Voltage Converter

The MajorVTC1000 Voltage Converter supplies either 12, 24, 32 or 48 VDC from a -48, 72, 110, 250, or 300 VDC 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.

The output voltage is easily adjusted 0.5 volts above or below the standard output voltage. Devices connected to the converter are protected by an output overvoltage crowbar circuit. 1 or 2 high quality analog meters can be added (factory option) to allow monitoring of output current and output voltage.

Fully Isolated Design

Transient Voltage Suppressor

Adjustable Output Voltage

Audible & Visual Indicators

For constant current, low input voltage, low output voltage & over-temperature

Extremely Rugged

Well suited for marine, industrial and other harsh environments

High Tolerance

For shock and vibration

Ultra-Quiet

Low EMI operation

Protection

Current limiting protection
Output over-voltage crowbar
Reverse input protection
Dry contact output fail relay
Short circuit shutdown
Over temperature shutdown

Generous Heatsink & Thermostatically Controlled Fan

For reliable operation

Custom Input Voltages

From 100 to 360 VDC

Custom Output Voltages

From 8 to 55 VDC

Warranty

3 year parts and labour

Options

Remote Control Panel
Voltmeter and/or Ammeter
Ruggedization against shock and vibration
Conformal coating
Parallel output diodes to allow connection between 2 or more identical units
19" Rackmount
Extra wide Temperature Range -40°C to +70 °C

MajorVTC 1000 Watt Specs

Mechanical & Environmental
Operating Temperature Range	0 to 40°C @ Maximum Output; Derate Linearly 2.5% per °C from 40°C
Humidity	0-95°C @ Relative Humiidty (non-condensing) with optional conformal coating
Audible Noise	34.5 dB
Typical Service Life	>10 years (87,600 hours)
Isolation	Input-Case & Input-Output 1500 VDC; Output-Case 500 VDC
Dimensions (L x W x H)	14.5 x 10.2 x 5.5 in / 36.8 x 25.9 x 14.0 cm
Physical	1 inch (2.5 cm) clearance all around; Marine grade aluminum; Black powder epoxy coat, 18-8 Stainless steel fastenings
Weight	12.0 lbs / 5.5 kg
Connections	4 contact output terminals
Warranty	3 years
Safety	CSA/UL Pending

MajorVTC	1000-48	1000-72	1000-110	1000-250	1000-300
Nominal Input Voltage	48	72	110	250	300
Input Voltage	40-65	65-100	100-140	230-280	280-360
Input Amps (Maximum)	36.3	22.3	14.5	6.3	5.2
Input Fuse	30	25	20	7	6
Noise on Input	< 50 mV	< 50 mV	< 50 mV	< 50 mV	< 50 mV

Nominal Output Volts	12	24	32	48
Output Volts	13.6 ± 0.05 VDC	27.2 ± 0.05 VDC	36.3 ± 0.05 VDC	54.4 ± 0.05 VDC
Output Adjustment	± 0.5 V	± 0.5 V	± 0.5 V	± 0.5 V
Output Amps Continuous	0-60	0-40	0-30	0-20
Output Amps Maximum	70	45	34	22.5
Output Crowbar	16.0 ± 0.5 V	32.0 ± 1.0 V	42.7 ± 1.3 V	63.9 ± 2.0 V
Ripple & Noise	<50 mV	<50 mV	<50 mV	<50 mV
Transient Response	< 2 V for 50% Surge	< 2 V for 50% Surge	< 2 V for 50% Surge	< 2 V for 50% Surge
Switching Response	60 ± 2 kHz	60 ± 2 kHz	60 ± 2 kHz	60 ± 2 kHz
Idle Power	< 10 Watts	< 10 Watts	< 10 Watts	< 10 Watts
Line & Load Regulation	< ±0.5%	< ±0.5%	< ±0.5%	< ±0.5%
Duty Cycle	Peak 20% for 10 min max; Continuous 100% for 24 hours/day	Peak 20% for 10 min max; Continuous 100% for 24 hours/day	Peak 20% for 10 min max; Continuous 100% for 24 hours/day	Peak 20% for 10 min max; Continuous 100% for 24 hours/day
Efficiency	> 85% @ Maximum Output	> 85% @ Maximum Output	> 85% @ Maximum Output	> 85% @ Maximum Output

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