Power Xpert Branch Circuit Monitor
■For use with PXBCM Power Xpert Branch Circuit Monitor -The PXBCM–MMS Meter Module Strip (MMS) is designed to be used with the following PXBCM components to form an electrical metering system:
▲PXBCM-MB(-BASIC/-ENERGY) Meter Base
▲PXBCM-MME-X25-333MV Meter Module External
▲PXBCM-MME-X21-100MA Meter Module External
▲PXBCM-MMP-CBLnn/-CBLEnn Meter Module Port Cable and Cable Extension
■PXBCM-MMS Meter Module Strips (MMS) are available in configurations to mount on either the left or right of a panel board and contain 9,15,or 21 CTs.Four additional connections are provided for AX Auxiliary external CT connections per MMS,these can be used to monitor the panel mains or similar loads.The MMS has both load current and voltage metering circuits providing meter data to the Meter Base.Power must be supplied via the Meter Module Ports and a PXBCM-MMP-CBLnn cable for the Meter Module to operate.Onboard CTs mounted on the MMS support ANSI C12.20 class 0.5% revenue-grade applications.The accu-racy of the CT inputs on the MMS AX circuits is dependent on the 333 mV CTs chosen.Typically, if 0.5% CTs are chosen then the resulting energy accumulation supports EN62053-21 1% class applications.
■The MMS must be an approved accessory for use within a specific panel board.The PXBCM-MMS are installed at the factory in approved panel board such as the Eaton Pow-R-Line 1a, 2a, or 3e that ensures that the device will remain within its specified environmental ranges and provides fire and mechanical protection.The panel board uses interposing brackets to properly orient the MMS relative to the circuit breakers.
■The Onboard 100A/600V max.rated CTs are arranged with a 1”pitch with a 0.484”ID and are mounted to line up the CT centers with the load conductor lugs of the panel board branch circuit breakers.During field panel board commissioning the load conductors are routed through the MMS CTs.The conductor insulation sheath should pass through CT and only be stripped at the conductor end as recommended by the circuit breaker design to attach to the breaker lug.
■Terminate the secondary of up to 4,333mV external CTs,rated for the application, to the Auxiliary AX terminal block on the MMS.This is an in-line terminal block with each circuit as sequential pairs,The odd terminals are negative X2 (typically black) inputs and the even are for the positive X1 inputs (typically white).The terminal pairs are numbered adjacent to the terminals and also on the cover label.
■Note that external CTs must provide basic isolation between primary load cables to secondary output, qualified to:
▲UL/IEC61010-1
▲UL2808
▲UL/ANSI C57.13
▲IEC 60044
■The VT Voltage Terminal block at the bottom of the MMS provides metering inputs to monitor the modules load mains connections.Phase A,B,C inputs should be equipped with a fuse or breaker sized to protect the wiring and provided with a disconnect.To gain access to the AX or VT terminal blocks and the Meter Module Port the MMS cover must be temporary removed by unscrewing the two Philips screw mounts.See figures 1&2 for wiring details.(Right side MMS are mirror imaged).When the wiring is complete replace the cover.
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PXBCM-MMS-L09-A 、 PXBCM-MMS-R09-A 、 PXBCM-MMS-L15-A 、 PXBCM-MMS-R15-A 、 PXBCM-MMS-L21-A 、 PXBCM-MMS-R21-A 、 PXBCM-MB(-BASIC/-ENERGY) 、 PXBCM-MME-X25-333MV 、 PXBCM-MME-X21-100MA 、 PXBCM-MMP-CBLnn/-CBLEnn 、 PXBCM-MME |
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User's Guide |
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Please see the document for details |
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English Chinese Chinese and English Japanese |
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May 2019 |
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IL150003EN;TBG001448 |
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224 KB |
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