Speedfax 2017

Power Mod
Revised on 06/30/19
WMM Residential Meter Stacks Rating Charts
Use the tables below to determine the correct combination of equipment and circuit breakers for the available fault current.
This chart provides series rating information for the most common applications. For a complete series rating chart please contact
your local sales office.
Available fault current
RMS symmetrical amps at
Meter module
120/240 volts maximum Main Modules a branch circuit breakers
Load center
branch circuit breakers
to 10,000
Series
WB, WB_U, WBM, WBM_U
WEB, WEB_U, WEBM, WEBM_U
WS_U, WES_U, WTB_U,
WET_U, WXB, WXB_U
WXBM, WXBM_U, WBTM,
WBTM_U, BFTM and BFTM_U
Series
WB, WB_U, WBM, WBM_U
WEB, WEB_U, WEBM, WEBM_U
WXB, WXB_U, WXBM,
WXBM_U, WBTM, WBTM_U,
BFTM and BFTM_U
QP, QPH, HQP, HQPH (2 pole, 15–125A)
QS, QSH, QSHH, HQS, HQSH
(2 pole, 100–225A)
QPH, HQP, HQPH (2 pole, 15–125A)
QS, QSH, QSHH, HQS, HQSH
(2 pole, 100–225A)
QP, QPH, HQP, QT, QAF, QAFH,
QPF, QPHF, QE, QEH
3 METER
CENTERS
to 22,000
Series
WS_U, WES_U
WXS
QPH, HQP, HQPH (2 pole, 15–125A)
QS, QSH, QSHH, HQS, HQSH
(2 pole, 100–225A)
QP, QPH, HQP, QT, QAF, QAFH,
QPF, QPHF, QE, QEH
Series
WTB_U, WET_U
QPH, HQP, HQPH (2 pole, 15–125A)
QSH, QSHH, HQS, HQSH
(2 pole, 100–225A)
to 42,000
Series
WB, WB_U, WBM, WBM_U
WEB, WEB_U, WEBM, WEBM_U
WXB, WXB_U, WXBM,
WXBM_U, WBTM, WBTM_U,
BFTM and BFTM_U
Series
WS_U, WES_U
WXS
QPH, HQP, HQPH (2 pole, 15–125A)
QS, QSH, QSHH, HQS, HQSH
(2 pole, 100–225A)
QPH, HQP, HQPH (2 pole, 15–125A)
QS, QSH, QSHH, HQS, HQSH
(2 pole, 100–225A)
QP, QPH, HQP, QT, QAF, QAFH,
QPF, QPHF, QE, QEH
Series
WTB_U, WET_U
HQP, HQPH (2 pole, 15–125A)
QSHH, HQS, HQSH (2 pole, 100–225A)
Series
WB, WB_U, WBM, WBM_U
WEB, WEB_U, WEBM, WEBM_U
WXB, WXB_U
QPH, HQP, HQPH (2 pole, 15–125A)
QS, QSH, QSHH, HQS, HQSH
(2 pole, 100–225A)
to 65,000
Series
WS_U, WES_U
WXS
QPH, HQP, HQPH (2 pole, 15–125A)
QS, QSH, QSHH, HQS, HQSH
(2 pole, 100–225A)
QP, QPH, HQP, QT, QAF, QAFH,
QPF, QPHF, QE, QEH
Series
WTB_U, WET_U
HQP, HQPH (2 pole, 15–125A)
HQS, HQSH (100–225A)
to 100,000
Series
WB_U, WBM_U, WEB_U,
WEBM_U, WS_U, WES_U,
WXB_U, WXS, WXBM_U,
WBTM_U and BFTM_U
HQPH (2 pole, 100–125A)
QS, QSH, QSHH, HQS, HQSH
(2 pole, 100–225A)
QP, QPH, HQP, QT, QAF, QAFH,
QPF, QPHF, QE, QEH
Series
WTB_U, WET_U
HQPH (2 pole, 100–125A)
HQSH (100–225A)
a Service Entrance Modules:
WB, WEB, WXB, WBT and BFT have 65k AIC breakers factory installed [(JXD2-A, JXD6-A) (LXD6-A) (MXD6) (NXD6) (PXD6) (RXD6)]
WB_U, WEB_U, WXB_U, WBT_U and BFT_U have 100k AIC breakers factory installed [(HJXD6-A) (HLXD6-A) (HMXD6) (HNXD6) (HPXD6) (HRXD6)]
WBM, WEBM, WXBM, WBTM and BFTM have 65k AIC DAS breakers factory installed [(SND6) (SPD6)]
WBM_U, WEBM_U, WXBM_U, WBTM_U and BFTM_U have 100k AIC DAS breakers factory installed [(SHND6) (SHPD6)]
WS_U and WES_U are fused switches (Class T – 300 volt)
WTB_U and WET_U have NO overcurrent protection
Siemens Industry, Inc. SPEEDFAX Product Catalog 3-141