behaivor when too much load on output Smart ups 1000

[Anonymous user]

Hi,
what will happen when you have put too much load on the output of an smart ups 1000 in case of power loss?
For example, a customer had put about 3 Server with an load of 500Watts on a Smart1000,
the power went down and the power on the output of the 1000 immediately went also down.
what dimenson is need to overload so that the usv goes immediatly down instead of going on battery, assumed batteries are ok?
I dont want too overload the usv or size an usv wrong, the question is: what happens in case of power failure when the custumer does it?

thx

[BillP]

Hi,
In situations where the load is > than the UPS capacity rating, in the event of power failure, the UPS will just drop the load. While on-line, the UPS will displayed "overload" condition and may drop load as well. As a caution rule, we always explained to customer the see-saw effect of load vs backup time ( runtime ) to the customers and as such would advise customers to load below the 50% rated capacity of the UPS.. usually just twp of the load Leds on. Hope this info helps..

Thanks and regards.

Message was edited by: kooldog

[BillP]

In situations where the load is > than the UPS capacity rating, in the event of power failure, the UPS will just drop the load. While on-line, the UPS will displayed "overload" condition and may drop load as well. As a caution rule, we always explained to customer the see-saw effect of load vs backup time ( runtime ) to the customers and as such would advise customers to load below the 50% rated capacity of the UPS.. usually just twp of the load Leds on. Hope this info helps..

Thanks and regards.

[Anonymous user]

Thank you for your information kooldog.

[voidstar_apc · Accepted solution]

>
would advise customers to load below the 50% rated capacity of the UPS.. usually just twp of the load Leds on.
>

I can understand being cautious about loading the UPS. For the benefit of others, I'd point out that at less than 50% capacity, efficiency starts going down (see [this efficiency chart|http://www.apc.com/products/resource/include/techspec_index.cfm?base_sku=smt1000]) and it costs more money, so typically APC recommends right-sizing the UPS with the load.