APC UPS2000VA SMT recharging current?

Anonymous user · ‎2021-06-28

Hi, we have an 2200 SMT connected directly to a 16amp breaker and had a power outage yesterday evening where the battery discharged completely.

Upon tending to the issue this morning and power coming back online we found the 16amp breaker had tripped.

We switched it back on and it tripped again and again.

We removed the 2200 UPS from the circuit and charged it elsewhere (without load). at this point we where able to introduce the UPS back onto the 16amp circuit and it has been fine since.

My question is, what is the maximum charging current of this UPS and should additional load be included in this figure if outlets are set to switch on immediately?

Surely it should spike anywhere near the maximum capacity of the 16amp circuit but this seems to be what is happening?

Many thanks in advance!

Brad_C · ‎2021-06-28

In Australia the C19 cables are supplied fitted with a 15A plug (We do 10, 15 & 20). At worst a 2200VA UPS *should* draw < 10A fully loaded and charged (with a really bad power factor). My measurements seem to indicate they draw 50-80W on top of the actual load. Charging you can add an extra 2-300W on top, so another amp. You should *never* pop a 16A breaker. Is it a combined MCB/RCD by any chance?

Even a 3000VA UPS should sit within 15A fully loaded.

See Answer In Context

BillP · ‎2021-06-28

Hi Martin,

The SMT2200 has an NEMA 5-20 input plug meaning that it is to be used with a 20 amp circuit. If the circuit breaker on the circuit is only rated for 16 amps, it could easily trip while the unit is charging, especially at higher loads.

Anonymous user · ‎2021-06-28

Hi,

Many thanks for replying.

i'm in the UK and the UPS was supplied with a C19 power cable which i've just checked and has a 13 Amp fuse.

The correct model UPS is APC SMART UPS 2200VA RM LCD 230V (SMT2200RMI2U) - www.misco.co.uk &amp;amp;amp;amp;lt;/p&amp;amp;amp;amp;gt; &amp;amp;amp;amp;lt;div class="body"&amp;amp;amp;amp;gt; &amp;amp;amp;amp;lt;div id="container"&amp;amp;amp;amp;gt; &amp;amp;amp;amp;lt;div id="page_content_3_col"&amp;amp;amp;amp;gt; &amp;amp;amp;amp;lt;div class="pcsProductDetailAllProductReviews" id="ProductDetailTableCellProductDetail1"&amp;amp;amp;amp;gt; &amp;amp;amp;amp;lt;div id="ccs-inline-content"&amp;amp;amp;amp;gt; &amp;amp;amp;amp;lt;div class="MarketingSpecStyle normal"&amp;amp;amp;amp;gt; &amp;amp;amp;amp;lt;table cellpadding="4" cellspacing="0" class="MarketingSpecificationTable"&amp;amp;amp;amp;gt; &amp;amp;amp;amp;lt;tbody&amp;amp;amp;amp;gt; &amp;amp;amp;amp;lt;tr&amp;amp;amp;amp;gt; &amp;amp;amp;amp;lt;td class="MarketingSpecificationCellTwo"&amp;amp;amp;amp;gt;APC Smart-UPS 2200 LCD - UPS - 1.98 kW - 2200 VA&amp;amp;amp;amp;lt;/td&amp;amp;amp;amp;gt; &amp;amp;amp;amp;lt;/tr&amp;amp;amp;amp;gt; &amp;amp;amp;amp;lt;/tbody&amp;amp;amp;amp;gt; &amp;amp;amp;amp;lt;/table&amp;amp;amp;amp;gt; &amp;amp;amp;amp;lt;/div&amp;amp;amp;amp;gt; &amp;amp;amp;amp;lt;/div&amp;amp;amp;amp;gt; &amp;amp;amp;amp;lt;/div&amp;amp;amp;amp;gt; &amp;amp;amp;amp;lt;/div&amp;amp;amp;amp;gt; &amp;amp;amp;amp;lt;/div&amp;amp;amp;amp;gt; &amp;amp;amp;amp;lt;/div&amp;amp;amp;amp;gt; &amp;amp;amp;amp;lt;p/&amp;amp;amp;amp;gt; &amp;amp;amp;amp;lt;p&amp;amp;amp;amp;gt;Instead of using the supplied cable we connected the UPS to a 16amp commando socket which has a 16amp breaker.&amp;amp;amp;amp;lt;/p&amp;amp;amp;amp;gt; &amp;amp;amp;amp;lt;p&amp;amp;amp;amp;gt;Are the UK models still possible of a 20AMP spike on charging with heavy load?&amp;amp;amp;amp;lt;/p&amp;amp;amp;amp;gt; &amp;amp;amp;amp;lt;p&amp;amp;amp;amp;gt;If you can advice soonest i'll get our electricians to upgrade the breakers!&amp;amp;amp;amp;lt;/p&amp;amp;amp;amp;gt; &amp;amp;amp;amp;lt;p&amp;amp;amp;amp;gt;Many thanks&amp;amp;amp;amp;lt;/p&amp;amp;amp;amp;gt; &amp;amp;amp;amp;lt;p/&amp;amp;amp;amp;gt;&amp;amp;amp;amp;lt;/body&amp;amp;amp;amp;gt;&amp;amp;amp;amp;lt;/html&amp;amp;amp;amp;gt;

BillP · ‎2021-06-28

Hi Martin,

I apologize for the confusion. As far as I know, a 16A circuit should be adequate for that unit. However, at this point I would recommend calling in to our tech support line for further troubleshooting. This issue would be better solved over the phone.

Thanks

BillP · ‎2021-06-28

Hello Team,

The IEC 60320 C19 / 20 connectors are rated for 16 amps. Female connector end (C19) and a male connector end (C20). A 16 amps circuit breaker is needed.

For more info check: "The Different Types of AC Power Connectors in North America" which is the White Paper #20 from APC.

Lino.

Brad_C · ‎2021-06-28

In Australia the C19 cables are supplied fitted with a 15A plug (We do 10, 15 & 20). At worst a 2200VA UPS *should* draw < 10A fully loaded and charged (with a really bad power factor). My measurements seem to indicate they draw 50-80W on top of the actual load. Charging you can add an extra 2-300W on top, so another amp. You should *never* pop a 16A breaker. Is it a combined MCB/RCD by any chance?

Even a 3000VA UPS should sit within 15A fully loaded.