Power > EC7BW18-72 Series
EC7BW18-72S12 Series @ Relec Electronics Ltd

EC7BW18-72 Series

Input: 8.5-160V dc- Single range
Outputs: 5V to +/-24V dc
Power: 20 Watt
Tamb: -40°C to +105°C
Dims: 2.0" x 1.0" x 0.4"
3000V ac Isolation

Make an enquiry

Make an Enquiry

  • This field is for validation purposes and should be left unchanged.
have a question? Contact us now


The EC7BW18-72 Series of DC-DC converters offer 20 watts of output power with output voltages of 5V, 12V, 15V, ±12V, ±15V, ±24V dc.  The EC7BW18 series comes in an industry-standard 2”× 1” × 0.4” package. It has an ultra-wide (18:1) input voltage range of 8.5 to 160VDC (72VDC nominal) and 3000V ac reinforced input to output isolation.

The EC7BW18-72 series is compliant with EN50155, EN45545, EN50121-3-2 making it ideal for all railway applications.

High efficiency up to 90%, allows case operating temperature range of –40°C to 105°C. An optional heat sink is available to extend the full power range of the unit. The EC7BW18-72 also has very low no-load power consumption (8mA), making it an ideal solution for energy-critical systems.

Standard control functions include remote on/off (positive or negative) and +15%, -20% adjustable output voltage (single output only). Units are fully protected against input UVLO (under-voltage lockout), output over-current, output over-voltage, and over-temperature and continuous short circuit conditions.

EC7BW18-72 series is designed primarily for railway applications and covers all standard battery voltages of 24V, 36V, 48V, 72V, 96V, 110V dc. It is also suitable for distributed power architectures, telecommunications, battery-operated equipment, and industrial applications.




Click on the link below for an instant download.

  • EC7BW18-72 series datasheet
  • EC7BW18-72 series application note

We would love to know more about the problem you are trying to solve

Our experts are on hand to help you find the best solution!

LET’S MAKE THIS EASY. CALL 01929 555 700

why choose relec?
  • Faster

    Our aim is to get back to you with an initial response within the hour.

  • Attention to detail

    We pride ourselves on getting you the right product, at the right price and on time.

  • New ideas

    We are constantly looking for latest technology and products for your applications.

  • Beyond standard

    It’s not just about the product.  Our service goes way beyond the norm.

  • Easy

    We want to make your life as simple as it can be. Call us to find out what we can offer.

sign up for our newsletter

Enter your email address below

  • This field is for validation purposes and should be left unchanged.
jQuery(document).ready(function($) { function updateActiveItem() { try { var carouselItems = $('.center-grow-carousel .elementor-carousel-item'); var centerIndex = Math.floor(carouselItems.length / 2); carouselItems.each(function(index) { if (index === centerIndex) { $(this).addClass('active'); } else { $(this).removeClass('active'); } }); } catch (error) { console.error('Error updating active item:', error); } } // Initial update updateActiveItem(); // Update on slide change var carousel = $('.center-grow-carousel .elementor-swiper'); if (carousel.length) { carousel.on('transitionend animationend', function() { updateActiveItem(); }); } else { console.error('Carousel element not found.'); } });