VTC120 Series DC/DC Converters

Benefits

Ultra-Quiet
Power sensitive electronics without interference
Rugged & Reliable
Ensure years of safe and trouble free operation
Download Data Sheet

The VTC120 Series Voltage Converter is a variable duty cycle switching power supply with a precision linear regulator output (except for the VTC120nr-12-24). This model is common negative. This means that the input negative (ground) connection and the output negative (ground) connection are common or tied together.

Applications include running 24V PLC controls or electronic equipment from a 12 Volt battery system, or any other application requiring 24 VDC when only 12 VDC is available.

We are confident that you will get many years of reliable service from this Voltage Converter.

Features

Versatile design with wide variation of input and output combinations
Precision linear regulator final stage for ultra clean output for all units (except VTC120nr-12-24)
Extremely rugged and well suited for marine and other demanding environments
High tolerance for shock and vibration
Ultra-quiet low EMI operation
Ideal for running 24V PLC controls from 12 VDC
Reverse input protection
Short circuit protection
Can be built to Class 1, Division 2 Standards for Hazardous Duty
3 year parts and labour warranty

Applications

Programmable Logic Controllers (PLC's)
Rugged Mobile Environments
Automotive / RV / Marine
Electric Utilities and Substations
Oil Patch
Telecommunications Power
Industrial Controls(OEM Applications)
Field Work / Construction Sites
Solar/Alternative Power Systems
Security Systems Power
Any 12 or 24 Equipment

Electrical [Input]
Model-VTC120	-12-24	h-12-12	nr-12-24
Input Volts(DC)	11-15	11-15	11-14
Input Amps(Max)	15	11	15
Input Fuse(AGC)	20	15	25
Noise on Input	< 25mV

Electrical [General]
Output Volts (DC)	24.0	12.0	25.0 ± 5V
Output Amps	5 Cont./5.5 Peak	7.5 Cont./8.0 Peak	5 Cont./9 Peak
Output Ripple & Noise	< 5 mV
Transient Response	< 1V for 50% Surge
Regulation (Line & Load)	< +/- 0.5%
Duty Cycle	Peak 20% for 5 min maximum Continuous 100% for 24 hours per day
Efficiency	> 80% @ Maximum Output

Environmental Specification
Operating Temp. Range	-25° to +40°C @ maximum output Derate Linearly 2.5% per°C from 40°C (Optional -40°C extra wide temp. operation avail.)
Humidity	0 - 95°C Relative Humidity (non-condensing) with optional conformal coating
Audible Noise	NONE Ødb @ 3 ft
Typical Service Life	>10 years (87,600 hours)
Isolation	Any Input or Output to Case 500 VDC Common Negative

Mechanical Specification
Length	7.9 in/ 20.1 cm
Width	6.0 in/ 15.2 cm
Height	2.4 in/ 6.1 cm
Material	Marine Grade Aluminium
Finish	Black Anodize / Powder Epoxy Coat
Fastenings	All 18-8 Stainless Steel
Weight	2.5 lb / 1.1 kg
Connections	Four contact output terminals
Warranty	3 years

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