ASI Automation Systems Interconnect, Inc.
Solar Products . . .
                 . . . at Down to Earth Prices
Home (ASI Internal) > DC Circuit Breakers

DC Circuit Breakers

Do You Need DC Circuit Protection for Your Solar Application?

Our miniature DC Circuit Breakers are a great fit for your next photovoltaic application.  We offer you both UL1077 and UL489.

The NDB2Z series of UL1077 Recognized circuit breakers are designed for use in DC circuits where supplemental protection is required.  It is available in one or two pole forms, and with the standard B or C trip curves.  You will find these breakers to be low cost but high quality with our guarantee of 300% factory testing  They are available with current ratings ranging from 1 to 63 Amps.

The NDB5 series of UL1077 Recognized circuit breakers are only 13mm wide and are available with one, two and three poles.

When you need protection for your DC circuit and devices but space is an issue ASI can save you space and money with our QY Series of UL489 high-density circuit breakers.  You will find their compact housing design of only 13mm has easy DIN Rail mounting and the shockproof connections are easy to wire.
Find Low Prices

 • View Discounted Internet Prices
 • Check Availability
 • Securely Place Orderscart
Email Newsletter
• New Product Information
• Technical News
• Special Offers
Click now to display this product's available stock level.
Click now to add this product to your shopping cart.
ASI-EZ Website Searches
There are three different kinds of search that you can do on the ASI website:

Product Search
Enter an ASI catalog number (or the leading part of the catalog number) or enter one or more words that describe the product you are looking for.

Categories Search
Enter one or more words that describe the type of product you are looking for.  The product Category Search will show you the sections of the ASI website for the product types you are looking for.

Cross Reference
Enter a part number from a company other than ASI.  This search will return all equivalent ASI products.
Use our quick logon to get immediate access to our discounted web prices and product availability, as well as placing and monitoring orders through our secure online site.

If you haven't logged on before use the New Account link to the right to easily and securely set up a logon id.
If you have not logged onto the site before click now to quickly, easily and securely set up an id for immediate access to product prices and availability.
Click now if you need us to send you your password in an email.
Call Toll-Free:
 (877) 650 - 5160