ASI Automation Systems Interconnect, Inc.
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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.
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