Square D SDSA3650
Intended Application System
|Number of Phases||3-Phase|
|Conductors||3 Wire + Ground|
This page collects publicly available data from ul.com and assembles a side by side reference table for a convenient product cross reference.
|UL File #||E326289||E3314042|
|Ambient Min (C)||-35||-35|
|Ambient Max (C)||80||80|
|Surge Current |
|Protection Circuit||Hybrid TMOV+GSG||TMOV|
|NEMA 4X |
|# of Wires||4||4|
|Modes of Protection||Common Mode |
|(1) For the SDSA3650, if you intend to use in the 480Vac Delta application, you will need to confirm the "suitable ratings" with the UL inspector. Otherwise, it is intended for a 480/277Vac 3-Phase, 4W+G, Wye system.|
|(2) For safety reasons, you are permitted to use an SPD rated for a higher system voltage but this will result in a higher surge stress on the sensitive equipment than is normally provided by a properly rated SPD.|
Determining the acceptability of an SPD for your UL equipment
(for UL 508A Control Panels and All Other UL Listed Equipment)
The UL inspector will first consider the SPD type when determining it’s acceptability for a given application or piece of equipment. This will include UL 508A as well as all other UL Listed equipment. The first level compliance is based on the UL Approval (LISTED or RECOGNIZED) of the SPD or UL SPD Type and it’s Suitable Ratings. This means that it has to meet all safety, performance, environmental and electrical system ratings of the application. If any of these criteria are not fully met, it will require a Procedure Description, a File Update and/or Additional Testing. These actions will require additional costs that may be substantial. For this reason, it is in the interest of the specifier to use UL LISTED SPD’s to eliminate any uncertainty or to make sure the UL RECOGNIZED SPD is selected at the time of UL submittal of the equipment.
Approval Considerations Table based on UL SPD Type
|Yes||No||No||The only requirement is that the SPD must match electrical and environmental ratings of the UL 508A Control Panel. |
A UL field inspection of the control panel with the SPD installed is required as a part of a standard follow-up service visit.
|Yes||Yes||Yes||Yes – All UL recognized SPD’s require a UL engineering evaluation of the SPD’s existing UL1449 E–file. |
This will result, at a minimum, in a cost to update the UL file and may also require testing that would result in additional costs.
UL data is publicly available with a free account at UL.com. The data has been reviewed by our engineering department. From time to time, the applicants UL file (including CITEL's) may become changed or updated at UL.com due to new testing or corrections to a report. At the time of this comparison you will find this information to be accurate to the UL web site. If you find any information requires an update, please bring to our attention and it will be updated immediately.
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|www.citel.us||Where to purchase Citel SPD's|