1 Phase Main Devices

Class 4161 / Refer to Catalog 4100CT0701

1 phase, 3 wire 120/240 Vac EZ Meter-Pak™ Meter Centers

1 phase, Indoor/Rainproof, UL Listed

1200 A Main CB/Fusible Switch Devices come Standard with 2-STEP Removable Service Entrance Endwalls

Select EZM meter center short circuit current rating from UL Listed Meter Center Short Circuit Current Ratings (SCCR). Using this table as a reference, make the following selections:

Select EZM 1Ø main device from Main Devices, Overhead/Underground Feed or Main Devices, Underground Feed Only, with an equal or higher short circuit rating than the application.
Select EZM 1Ø branch units from Branch Units—1Ø Incoming and 1Ø Outgoing , Branch Units—225 A Maximum Commercial or Branch Units—400 A Maximum Commercial .
Select proper 2P type QO, QO-VH, QOH, QBP-TM, QDP-TM, QGP-TM or QJP-TM branch circuit breakers for use as tenant mains in branch unit from 125 A Max. EZM Branch Unit Tenant Circuit Breakers and 225 A Max. EZM Branch Unit Tenant Circuit Breakers.
Select accessories as required from Accessories.
Dimensions; see Main Devices Dimensions (in.) and Three Phase Branch Devices Dimensions (in.).

Select Main Devices—NEMA 3R Construction

1Ø Main Devices

	Ampere Rating	Service Feed	Horizontal Cross Bus Rating and Bus Bar Material	Cat. No. ^[1]		Width (in.)	Factory-Installed Line Side Lug (Conductors per Phase and Neutral) Wire Size (AWG/kcmil)
EZM11200FST	Main Circuit Breaker (1Ø Incoming and 1Ø Outgoing)
				65 kA	100 kA
	400	OH/UG	400 A, Al	EZM1400CB	—	18.66	(1) 1–600 or (2) 1–250
	600	OH/UG	600 A, Al	EZM1600CB	—	18.66	(3) 3/0–500
	800	OH/UG	800 A, Al	EZM1800CB	—	18.66	(3) 3/0–500
	1000	OH/UG	1200 A, Cu	EZM11000CB	—	18.66	(3) 3/0–500
	1200	OH	1200 A, Al	EZM11200GCBT ^[2]	EZM11200JCBT ^[2]	23.69	(4) 3/0-500
	1200	UG	1200 A, Al	EZM11200GCBU ^[2] ^[3]	—	23.69	(4) 3/0–500
	1600	UG	1200 A, Al/Cu	EZM11600GCBU ^[2] ^[4]	EZM11600JCBU ^[2] ^[4]	22.48	6 (Order Lugs Separately)
	1600	OH/UG	1200 A, Al/Cu	EZM11600GCBC ^[2] ^[4]	EZM11600JCBC ^[2] ^[4]	30.19	(6) 1/0–750 or (12) 1/0–250
	2000	OH/UG	1200 A, Al/Cu	—	EZM12000CB ^[4]	30.19	(6) 1/0–750 or (12) 1/0–250
	2000	UG	1200 A, Al/Cu	—	EZM12000CBU ^[4]	30.19	6 (Order Lugs Separately)
	Main Fusible Switches (1Ø Incoming and 1Ø Outgoing) Requires 300 Vac Class T Fuses (Order Separately)
	400	OH/UG	400 A, Al	—	EZM1400FS	18.66	(1) 1–600 or (2) 1–250
	600	OH/UG	600 A, Al	—	EZM1600FS	18.50	(3) 3/0–500
	600	UG	600 A, Al	—	EZM1600FSU	20.46	2 (Order Lugs Separately)
	800	OH/UG	800 A, Al	—	EZM1800FS	18.50	(3) 3/0–500
	800	UG	800 A, Al	—	EZM1800FSU	20.46	2 (Order Lugs Separately)
	1200	OH	1200 A, Al	—	EZM11200FST	23.69	(4) 3/0–500
	1200	UG	1200 A, Al	—	EZM11200FSB^[3]	23.69	(4) 3/0–500
	Main Lug Terminal Boxes (1Ø Incoming and 1Ø Outgoing)
	225	OH/UG	800 A, Al	—	EZM1225TB ^[5]	11.66	(1) 4–300
	400	OH/UG	800 A, Al	—	EZM1400TB ^[6]	17.15	(2) 3/0–500
	600	OH/UG	800 A, Al	—	EZM1600TB ^[6]	17.15	(2) 1/0–750 or (4) 1/0–300
	800	OH/UG	800 A, Al	—	EZM1800TB ^[6]	18.66	(4) 3/0–500
	800	OH/UG	800 A, Cu	—	EZM1800TBCU ^[6]^[7]	24.08	(4) 3/0–500
	1600	OH/UG	1200 A, Al/Cu	—	EZM11600TB ^[6]^[7]	22.48	(6) 1/0-600 or (12) 1/0-300
	2000	OH/UG	1200 A, Al/Cu	—	EZM12000TB ^[6]^[4]	30.19	6 (Order Lugs Separately)
	Main Circuit Breaker (1Ø Incoming and 1Ø Outgoing) with Energy Reduction Maintenance (ERMS)
	1200	UG	1200 A, Al	EZM11200GCBUMS	EZM11200JCBUMS	26.39	(4) 3/0–500
	1200	OH	1200 A, Cu	—	EZM11200JCBTMS	23.69	(4) 3/0–500
	1600	OH/UG	1200 A, Cu	EZM11600GCBCMS	—	30.19	(6) 1/0–750 or (12) 1/0–250
	1600	UG	1200 A, Al	EZM11600GCBUMS	EZM11600JCBUMS	30.19	6 (Order Lugs Separately)
	2000	OH/UG	1200 A, Cu	EZM12000CBMS	—	30.19	(6) 1/0-750 or (12) 1/0-250
	2000	UG	1200 A, Al	EZM12000CBUMS	—	30.19	6 (Order Lugs Separately)

1Ø Main Devices, EUSERC

	Ampere Rating	Service Feed	Horizontal Cross Bus Rating and Bus Bar Material	Cat. No.		Width (in.)	Factory-Installed Lug Landings for use with Crimp-Type Lugs (2-Hole Mounting) Qty. per Phase and Neutral, except non-EUSERC. ^[8]
EZM11200GCBE	Main Circuit Breakers (1Ø Incoming and 1Ø Outgoing)^[8]
				65 kA	100 kA
	400	UG	400 A, Al	EZM1400CBU ^[9]	—	20.46	1 (Order Lugs Separately)
	600	UG	600 A, Al	EZM1600CBU ^[9]	—	26.19	2 (Order Lugs Separately)
	800	UG	800 A, Al	EZM1800CBU^[9]	—	26.19	2 (Order Lugs Separately)
	1000	UG	1200 A, Cu	EZM11000CBU^[4]	—	34.19	2 (Order Lugs Separately)
	1200	UG	1200 A, Al	EZM11200GCBE ^[2]	EZM11200JCBE ^[2]	32.39	3 (Order Lugs Separately)
	Main Fusible Switches (1Ø Incoming and 1Ø Outgoing) ^[8] Requires 300 Vac Class T Fuses (Order Separately)
	400	UG	400 A, Al	—	EZM1400FSU	20.46	1 (Order Lugs Separately)
	600	UG	600 A, Al	—	EZM1600FSE	18.36	2 (Order Lugs Separately)
	1200	UG	1200 A, Al	—	EZM11200FSE	32.39	3 (Order Lugs Separately)
	Main Lug Terminal Boxes (1Ø Incoming and 1Ø Outgoing)
	400	UG	800 A, Al	—	EZM1400TBU ^[6]	17.16	1 (Order Lugs Separately)
	800	UG	800 A, Al	—	EZM1800TBU ^[6]	25.16	2 (Order Lugs Separately)
	1200	UG	1200 A, Al/Cu	—	EZM11200TBU ^[6]	33.16	3 (Order Lugs Separately)
	Main Circuit Breaker (1Ø Incoming and 1Ø Outgoing) with Energy Reduction Maintenance Switch (ERMS)
	1200	UG	1200 A, Al	EZM11200GCBEMS	EZM11200JCBEMS	32.39	3 (Order Lugs Separately)

Section 2: Metering Equipment