Symmetra LX Bypass Dry Contact Output

[BillP]

This question was originally posted by Federico on APC forums on 4/19/2010

---

I'm in hurry trying to determine if there is a way to know when the external bypass of a symmetra LX is used with a dry contact Output.

Online Manuals lack detailed information.

Is there a way to extract a dry contact from this bypass: SBP16KRMI4U

Link:
http://www.apc.com/products/resource/include/techspec_index.cfm?base_sku=SBP16KRMI4U&tab=models

Why? The symmetra LX has a major problem when going in bypass mode (static or manual). All the current goes through L1 so I'm left with two options, turn off the extra load with a trip coil circuit to protect wires or cut the power to the UPS (not possible).

[BillP]

This reply was originally posted by Federico on APC forums on 4/22/2010

---

Thanks, I checked this by myself yesterday after dismantling the unit. 😃

[BillP · Accepted solution]

This reply was originally posted by Federico on APC forums on 4/19/2010

---

I'm in hurry trying to determine if there is a way to know when the external bypass of a symmetra LX is used with a dry contact Output.

Online Manuals lack detailed information.

Is there a way to extract a dry contact from this bypass: SBP16KRMI4U

Link:
http://www.apc.com/products/resource/include/techspec_index.cfm?base_sku=SBP16KRMI4U&tab=models

Why? The symmetra LX has a major problem when going in bypass mode (static or manual). All the current goes through L1 so I'm left with two options, turn off the extra load with a trip coil circuit to protect wires or cut the power to the UPS (not possible).