Sol-Ark E-Stop Detail

[solarken]

Does anyone know for sure if there is a physical contactor or power relay in the Sol-Ark 15K with contacts that open when after the emergency stop pins are shorted using an initiator/control switch? I can't find details in the manual or any other doc on Sol-Ark website.

The manual says:
The (B, B) emergency stop pins of the Sol-Ark 15K-2P-N are an ordinarily open contact that triggers rapid shutdown (RSD) when closed. RSD
will cut all power including the Sol-Ark’s internal power supply and stop all AC outputs.

Not sure what they mean by stop all AC outputs.

 

[jaggedben]

Why does it matter? It is not a code requirement to have physical contactors or relays for RS.

I read 'stop all AC outputs' to mean the inverter will no longer enegize either grid or backup AC connections.

 

[solarken]

Why does it matter? It is not a code requirement to have physical contactors or relays for RS.

In this case, I'm not asking for the purpose of rapid shutdown

 

[pv_n00b]

I have not torn this inverter down but typically there is no air gap contact that is opened when an inverter stop input is activated. It ceases to energize the AC output.

 

[solarken]

I have not torn this inverter down but typically there is no air gap contact that is opened when an inverter stop input is activated. It ceases to energize the AC output.

I finally got an email response from a sales support rep that said he was relaying from an engineer that there are contacts that open on all outputs, like the inverter grid and load, etc. when the E-stop is initiated. I have not received and documentation that supports this, so still not completely sure.