Technical Data Bulletin
© 2019 Schneider Electric
All Rights Reserved
2-19
schneider-electric.us
3 Phase Main Devices (Busway Side Tap) EZ Meter-Pak™ Meter Centers
Class 4162 / Refer to Catalog 4100CT0701
EZM Main with Busway Side Tap
5.75
146
C
L
of
Busway
Plan View Detail
Wall
56.11
1425
31.11
790
4.11
104
Floor Level
Top of EZM
Mounting
Channel
EZM
Bus Tap
C
L
of Busway
Plug-in Opening
EZM3800CBNFBTR
Width
(See Note)
56.11
1425
31.11
790
4.11
104
Floor Level
Top of EZM
Mounting
Channel
EZM
Bus Tap
C
L
of Busway
Plug-in Opening
EZM3800FSNBBTL
Width
(See Note)
EZ Meter-Pak metering equipment is available for use in high rise applications for
connection to 800–5000 A I-Line
™
or I-Line II plug-in busway installed as a vertical riser.
Three phase only EZM main devices in the form of a main circuit breaker or main fusible
switch are available with an integral busway tap extending from the right or left side of
the main device and phased to align with the busway for either neutral front or neutral
back installations.
Busway Mains, 3Ø only (Indoor only) ordering instructions:
Step 1: Determine height to center line of busway plug-in opening, check local utility
requirements for minimum and maximum meter socket heights.
Step 2: Determine side of EZM main section for busway tap to extend from (busway tap
is an integral part of the main and extends to the left or right on the EZM device as
viewed from the front).
Step 3: Check phasing of busway riser to insure that it matches phasing of busway tap
on main section (indicated as neutral front or neutral back as viewed from the front).
Step 4: Select Cat. No. from tables below.
Step 5: Busway main devices are build to order specials and require 4 to 6 weeks for
delivery.
Table 2.28: EZM Busway Side Tap Mains Devices
Number Segment Character Description EZM 3 800 CB NF BTR
Device Name EZM EZ Meter-Pak Meter Center
Service Feed 3 3Ph, 4W
Mains Rating
400 A
600 A
800 A
1000 A
1200 A
Main Type
CB Main Circuit Breaker
FS Main Fusible Switch
GB Main Circuit Breaker (65 kAIC)
JB Main Circuit Breaker (100KAIC)
Neutral Position
NF Neutral Front
NB Neutral Back
Bus Tap Location
BTL Bus Tap Left
BTR Bus Tap Right
This table is for interpreting existing part numbers only. All possible combinations are not
available.
Table 2.29: 1200 A EZM Mains with Busway Side Tap (Three Phase Only—Note positioning left or right below)
Ampere
Rating
Width
(in.)
Horizontal Cross
Bus Rating
Busway to LEFT of EZM Metering Equipment Lineup Busway to RIGHT of EZM Metering Equipment Lineup
Neutral Front Neutral Back Neutral Front Neutral Back
Main Circuit Breaker with Busway Tap
65,000 RMS Symmetrical Amperes Maximum Short Circuit Current Rating
400 18.66 400 A Al EZM3400CBNFBTL EZM3400CBNBBTL EZM3400CBNFBTR EZM3400CBNBBTR
600 18.66 600 A Al EZM3600CBNFBTL EZM3600CBNBBTL EZM3600CBNFBTR EZM3600CBNBBTR
800 18.66 800 A Al EZM3800CBNFBTL EZM3800CBNBBTL EZM3800CBNFBTR EZM3800CBNBBTR
1000 18.66 1000 A Al
EZM31000CBNFBTL [55] EZM31000CBNBBTL [55] EZM31000CBNFBTR [55] EZM31000CBNBBTR [55]
1200 23.36 1200 A Cu
EZM31200GBNFBTL [55] EZM31200GBNBBTL[55] EZM31200GBNFBTR [55] EZM31200GBNBBTR [55]
100,000 RMS Symmetrical Amperes Maximum Short Circuit Current Rating
1200 23.36 1200 A Cu
EZM31200JBNFBTL [55] EZM31200JBNBBTL [55] EZM31200JBNFBTR [55] EZM31200JBNBBTR [55]
Main Fusible Switch with Busway Tap Requires Class T (300 Vac) Fuses - Order Separately
100,000 RMS Symmetrical Amperes Maximum Short Circuit Current Rating
400 18.66 400 A Al EZM3400FSNFBTL EZM3400FSNBBTL EZM3400FSNFBTR EZM3400FSNBBTR
600 18.66 600 A Al EZM3600FSNFBTL EZM3600FSNBBTL EZM3600FSNFBTR EZM3600FSNBBTR
800 18.66 800 A Al EZM3800FSNFBTL EZM3800FSNBBTL EZM3800FSNFBTR EZM3800FSNBBTR
1200 22.36 1200 A Cu
EZM31200FSNFBTL [55] EZM31200FSNBBTL [55] EZM31200FSNFBTR [55] EZM31200FSNBBTR [55]
NOTE: Dimensions shown position the centerline of top meter socket of a 125 A, 5-
Gang or 6-Gang branch unit at 72" above floor level. Check with utility to meet local
requirements.
Busway Transition Section
4.11
104
56.11
1425
16.11
409
55.11
1400
1.00
25
Floor Level
Top of EZM
Mounting
Channel
EZM
Bus Tap
C
L
of Busway
Plug-in Opening
EZM3BUSRF and EZM3BUSRB
4.11
104
56.11
1425
16.11
409
55.11
1400
1.00
25
Floor Level
Top of EZM
Mounting
Channel
EZM
Bus Tap
C
L
of Busway
Plug-in Opening
EZM3BUSLF and EZM3BUSLB
Width Width
EZM busway transition section provides no overcurrent protection for the downstream
EZM branch units.
Tenant main circuit breakers in these branch units must be selected as “fully rated”
equipment. (Examples: QO for 10 kA, QO-VH for 22 kA or QOH for 42 kA.)
Table 2.30: EZM Busway Transition Sections (3Ø only)
Ampere
Rating
I-Line
™
Busway location
Neutral Front Neutral Back
Width
(in.)
1200 RIGHT of EZM Transition Section EZM3BUSRF EZM3BUSRB 12.00
1200 LEFT of EZM Transition Section EZM3BUSLF EZM3BUSLB 12.00
2
METERING EQUIPMENT
[55] Requires use of branch units supplied with 1200 A horizontal cross bus.
5/15/2019