Siemens has taken branch circuit monitoring to a new level by combining the SEM3™-Embedded Micro Metering Module Technology with Siemens P2, P4 and P5 Panelboards. The SEM3 system can be factory installed in unit space in type P2, P4 and P5 Siemens Panelboards, and configured for factory installation in branch circuit monitoring applications using the Siemens COMPAS configuration tool. This option can lower the installation time of the system for the installer while providing a factory-warrantied solution.
Type P2: EnclosureAvailable in a NEMA 1, 3R, or 12 rated enclosureMinimum 24" width x 5.75" depthUp to 74" height depending on branch breaker selection- Addition of monitoring on some mains (primary and subfeed) may require additional box length. In these cases the box will be increased to the next size available as a standard design.- In cases where enclosure size is increased, all multi-section panels will be increased to match the largest section.Type P4: EnclosureAvailable in a NEMA 1, 3R, or 12 rated enclosure32" width x 10" depth60, 75, or 90" height depending on branch breaker selection- Addition of monitoring on some mains (primary and subfeed) may require additional box length. In these cases the box will be increased to the next size available as a standard design.- In cases where enclosure size is increased, all multi-section panels will be increased to match the largest section.Type P5: EnclosureAvailable in a NEMA 1, 3R, or 12 rated enclosure38 or 46" width x 10" depth60, 75, or 90" height depending on branch breaker selection- Addition of monitoring on some mains (primary and subfeed) may require additional box length. In these cases the box will be increased to the next size available as a standard design.- In cases where enclosure size is increased, all multi-section panels will be increased to match the largest section.
P2 SEM3 Configuration GuideExample P2 Panel with SEM3 Type 1 Enclosure (24" Wide x 5.75" Deep) Download
P4 SEM3 Configuration GuideExample P4 Panel with SEM3 Type 1 Enclosure (32" Wide x 10" Deep) Download
P5 SEM3 Configuration GuideExample P5 Panel with SEM3 Type 1 Enclosure (38" or 46" Wide x 10" Deep) Download
ControllerThe SEM3 controller is mounted in unit space opposite of the feed location specified in COMPAS (i.e., bottom mount for top feed) and will require 3" of unit space. Each controller will be powered by direct tap connection to the panel section bus. Each controller can monitor up to 45 circuits. Applications that require monitoring more than 45 circuits will require additional controllers.Current Transformers (CTs)Five sizes of CTs are available for use in the P2 panel: 50, 125, 250, 400 & 600 amp. The additional two sizes of CTs available for use in the P4 and P5 panels are 800 and 1200 amp. All CTs are pre-mounted to a support bracket that attaches to the base rail of the interior of the panel board. Each bracket supports a maximum of 3 CTs and is designed for the breaker selected (brackets are not interchangeable between breaker frames). Each CT will be attached to a data module that is placed in the meter racks.Meter RacksEach meter rack requires 3" of unit space. All meter racks will be installed next to the SEM3 controller in unit space. The COMPAS configuration tool will select the appropriate meter rack configuration according to the user's application and will use the 21 space meter rack as a default option where possible. Only one meter rack (regardless of number of positions can be installed in 3" of unit space. Note: Monitoring of 45 circuits will require 9" of unit space: two 21 position racks and one 3 position rack.
Direct links to useful documents: SpeedFax: Refer to P2, P4, and P5 panelboardsLiteratureSelection & Application GuideSolutions GuideSEM3 Data SheetSplit Core Current TransformersCDFA Certificate #5791-16: Siemens SEM3 Certificate for NEMA SWBD or PBLBD EnclosuresFor more documentation, click here to visit the Embedded Micro Metering Module (SEM3) homepage.Distributors may use the following Collateral Order Numbers to order any of the desired collateral:Order No.Collateral DescriptionPDSA-SEM3G-0814Selection & Application GuidePDBR-SEM3S-0915Solutions GuideRPFL-SEMDS-0514SEM3 Data SheetPDFL-SCCTD-0615Split Core Current TransformersAll collateral has been stored in one centralized application called the Download Center (DLC). This application allows you to search for literature by keywords or product categories. Here are some useful tips while searching for products in the Download Center:Use the Category filter to select Panelboards -> Lighting PanelsUse the Asset Type filter to select Instruction Sheet ,Cut Sheet, Brochure, etc.Use quotations for queries that include more than one word such as "Strap Kit"Use an asterisk (*) for partial queries such as SIE_* or SIE_IS_*Go to the download center (DLC). Click here to learn how to use the download center.