A 240 V coil, block relay works for this. Connect the coil wires to the output L1 and L2 of the generator. Run the AC input between the common and the N/C terminal. When the generator starts, the relay opens and the power is off.

_Drake Chamberlin_

_Athens Electric LLC_

_Ohio Electrical Contractor's License 44810_

_NABCEP Certified PV Installation Professional_

---

On 2025-07-07 21:49, Jeremy Rodriguez via RE-wrenches wrote:

The GT inverter does not have this function. I just need a relay to drop L1 or L2 to the inverter when the generator starts.

Jeremy Rodriguez
Solar Installation / Design

All Solar, Inc.
1453 M St.
Penrose Colorado 81240

Sent by Jeremy's iPhone. Sorry for typos and shorthand.

On Jul 7, 2025, at 3:25 PM, Darryl Thayer via RE-wrenches <[email protected]> wrote:

I am confused does you GT have a drop grid function?

On Mon, Jul 7, 2025, 4:07 PM Ryan Harkins via RE-wrenches <[email protected]> wrote:

PSP Products! SAK-60 model for up to 60A. Easy setup, detects frequency of generator, and drops the inverter out for you. Doesn't require direct wiring to the gen.

<SAK-60-Angle-Shadow-scaled.jpeg>

SAK-60 Wireless Load Management [1]
pspproducts.com [1]

Ryan Harkins
NABCEP Certified PV Installation Professional(tm) /
Project Manager

<Screen Shot 2013-04-12 at 2.33.51 PM.png>

Synergy Renewable Systems, LLC
PO Box 58
Stoughton, WI 53589
PH: (608) 712-7862

See our new website!
www.synergyrenewablesystems.com [2]

On Jul 7, 2025, at 3:33 PM, Jeremy Rodriguez via RE-wrenches <[email protected]> wrote:

Wrenches
What are you using to drop AC to a GT inverter when a generator starts up?
I have a 40A rated contactor in place but it failed after 18 months.
The generator is not close to the inverters , so I ran a grid reference circuit to the inverter location and installed the contactor there.

Jeremy Rodriguez
Solar Installation / Design
All Solar, Inc.
1453 M St.
Penrose Colorado 81240

Sent by Jeremy's iPhone. Sorry for typos and shorthand.
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<SAK-60-Angle-Shadow-scaled.jpeg>
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Links:
------
[1] https://www.pspproducts.com/load-management/sak-60-wireless-load-management/
[2] http://www.synergyrenewablesystems.com
[3] http://re-wrenches.org
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