Description
IEXT-IEHR
Isolated DC/DC Converter 70W – 150W
IEXT & IEHR series have been manufactured by Helios Power Solutions over the last 35 years and it is considered one of the most reliable DC-DC Converters in the market. Our converters have a wide input range from 12V to 110V and output voltage range from 4.5V to 55.2V.
The IEXT Series has a constant output current limit and is suitable for battery charging. Please specify output voltage on ordering. Whether you require a custom DC output or conformal coating for harsh environments, please contact our team of engineer at sales@heliosps.com.au
Main Features
- Isolated input-output – chassis
- Designed for industrial use
- High reliability
- Output over-voltage protection (IEXT)
- Constant current limit for charging (IEXT)
- Input transient/surge suppression
- Short circuit protection
- Reverse polarity protection
- External trim pot for output voltage adjustment
- Output decoupling diode and dc fail alarm standard
- Optional conformal coating
- Optional DC Fail alarm
Output Protection
IEXT(70W): Overload: constant current limit Severe overload: shuts down when output < 5V, power off to reset. IEXT Series is suitable for battery charging.
IEHR(150W): Hiccup mode current limit
Electrical & Mechanical Options
- Rack Mount: Converter fitted into 19″ x 2U subrack.
N+1 Redundancy Rack Mount IEXT DC-DC Converter with front removable power modules
- DIN Rail Mount: Using DIN rail clips.
- Fork Hoist Use +FORKHOIST, models below have been designed for Forklift applications.
Special DC-DC Converters for Forkhoist – Forklift Applications
At Helios Power Solutions we have developed a special range of DC-DC Converters which have in-built input surge protection.
| Model Code | Base Model | Special Features |
| IEXT/24-12G | IEXT/MV-12 | Input 20 -30Vdc, output 13.8V for forkhoist use |
| IEXT/48-12G | IEXT/MV-12 | Input 40 -60Vdc, output 13.8V for forkhoist use |
| IEXT/110-12G | IEXT/HV-12 | Input 66-130Vdc, output 13.8V for forkhoist use |
| IEXT/48-16G | IEXT/MV-16 | Input 40 -60Vdc, output 16V for forkhoist use |
| IEXT/48-24G | IEXT/MV-24 | Input 40 -60Vdc, output 24V for forkhoist use |
- Undervoltage Lockout: Available on IEXT/LV models, Lockout at 10.2V. auto reset at 12.4V, add suffix -UV
- Use with laptops: Some laptops require a “Sense” the diode is replaced with a resistor and the D+ terminal becomes the “Sense” terminal
