Hawkes Bay 90 triggering an mnedc125 shunt trip in addition to pv shunt trip?

Started by Brucey, July 06, 2025, 03:08:49 PM

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Brucey

Is it possible to connect the shunt trip of an mnedc125rt breaker to the monitoring circuit of a hawkes bay 90, in addition to the shunt trip pv breaker in the hawkes bay breaker box?

Trying to figure out how to protect my system from a 250/100 failing and feeding pv to the battery bus. If I can just connect an mnedc125rt in parallel to the bb pv shunt breaker, I can implement that protection for just $50. Seems like with three pairs of connections for the shunt trip function on the hb 90 this should work?