4120CT2201

Meter Mains

Square D brand Meter Mains are single phase power distribution panels that are ideal for residential use. They provide a meter socket that supports a standard utility meter and a main disconnect breaker.

This single compact solution provides a time and space saving solution for contractors and installers. Square D Meter Main products meet a wide range of applications in use today. Consult your local utility for a specific list of approved devices.

Features:

  • Ring or ringless styles available

  • Available in two styles for either QO or Homeline circuit breaker formats

  • 100 to 400 A main ratings

  • Units available with up to six service disconnects (For NEC® prior to 2020)

  • Available Plug-on Neutral (PoN) option*

  • Dedicated surface and semi-flush mounting styles

  • Multiple disconnect units can be converted to semi-flush with addition of flange kit

  • Generator Kits available to provide switching method between main utility service and backup power source

  • Solar ready available option

  • Some models are Wiser™ Energy compatible

  • Backup power ready available option

The Plug-on Neutral (PoN) Advantage:

  • Faster installation – Fewer connections

  • Saves wire – Fully distributed split neutral bar

  • Frees gutter space – No pigtails

WARNING: This product can expose you to chemicals including lead and lead compounds, which are known to the State of California to cause cancer, and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.

Meter Main Product Description

Used in residential applications where local codes require service disconnects to be located outside the dwelling.

Meter main devices include the utility meter socket and factory installed and/or provisions for field installation of service disconnect(s) to feed downstream devices. Meter mains are typically used with interior mounted sub-feed load centers.

Additional features:

Circuit breaker compatibility – QO is a 3/4-inch format and Homeline is a 1-inch format. Some interiors (solar ready) accept plug–on neutral (PoN) and pigtail style branch circuit breakers.

Backed out neutral screws – saves labor and installation time.

Standard 22 kA / 10 kA AIR SCCR — standard short-circuit rating for most combination service entrance devices (CSEDs) provide increased application capability. (Some CSEDs have a different SCCR, see product Technical Information to confirm.)

Neutral and ground – supplied with 100% branch neutrals; all unused terminals may be used for equipment grounding wires.

Twistouts – twistouts are factory removed in some models for easier installations of circuit breakers.

Screws – combination slot/square drive neutral, ground and cover screw accommodate both standard flat blade screwdrivers and square head drivers.

UL listed – suitable only for use as service equipment.

Catalog Number Description

Meter Mains catalog number description

Circuit Breakers catalog number description

General Information and Application Data

Type

CSEDs for use on electrical systems are UL listed under file E-6294 (panel boards) and meet federal specifications W-P-115c, type 1, class 2 for use in government housing.

UL Listed

File E-6294 (panelboards) UL67 standard enhances safety in electrical distribution panels. Suitable for use as service equipment. Suitable for use with 75°C copper or aluminum conductors.

Ratings

Single-Phase, Rating Max: 100–400 A

Service

120 / 240 Vac, 1φ3W

208Y / 120 Vac, 1φ3W

Neutral Assemblies

Branch neutral terminals suitable for one #14–#4 AWG copper or one #12–#4 AWG aluminum wire.

Suitable lugs provided on the neutrals for termination of the grounding conductor.

All unused neutral terminals may be used to terminate bare or green equipment grounding conductors:

  • one #14–#4 AWG copper

  • one #12–#4 AWG aluminum

  • two or three #14–#10 AWG copper

  • two or three #12–#10 AWG aluminum

Line Lugs

All lugs suitable for 75°C copper or aluminum wires.

CSEDs have wire binding screw torque values on the wiring diagrams and circuit breaker labels.

Phasing

CSEDs have distributed phase bussing.

Most branch circuit breakers can be mounted in any position.

QO and Homeline Meter Mains

Homeline Meter Main

QO Meter Main

NEMA Type 3R – Rainproof

QO and Homeline Meter Mains

NEMA 3R enclosures are typically used in outdoor applications for wiring and junction boxes. This style of enclosure provides protection against falling rain, sleet, snow, and external ice formation. This style of enclosure does not have a gasketed sealing surface. Some models have hasps for padlocking.

Square D by Schneider Electric CSEDs are suitable for use as service equipment only in residential applications where local codes require service disconnects to be located outside the dwelling.

QO and Homeline meter mains have different physical qualities, yet they both fulfill the same function. Contact your local utility to know which metering enclosure to use in your area.

Circuit breaker format - QO: ¾ inch per 1 pole space/ Homeline: 1 inch per 1 pole space.

Meter socket type - QO: Ring type and ringless / Homeline: Ring type and ringless

Backed-out neutral terminal screws - QO: Top and split neutral/ Homeline: Fully distributed split neutral

Bus bars - QO: Shielded, tin-plated copper / Homeline: Most are not shielded, tin and copper plated aluminum

Meter Main Rainproof Enclosures

QO and Homeline Plug-on Neutral (PoN)

Plug-on Neutral CSEDs are an available option that offer time-savings for Plug-on Neutral Combination Arc Fault (CAFI) and dual function circuit breaker installation. Our innovative, split neutrals are designed to save time and wire, allowing plug-on neutral circuit breakers to connect directly to the neutral bar without the pigtail.

Material and finish

Galvanealed steel enclosure includes interior trim and door with a gray powder coating. QO interiors have tin plated copper bus bars and Homeline interiors have tin and copper plated aluminum bus bars.

Stainless steel latch

A stainless steel door latch on the enclosure provides closure and maximum durability.

Wiring access without door removal

CSEDs are side-hinge or top-hinge door devices, providing full wiring access without door removal.

Hubs

Square D type rain-tight hubs provide fast and convenient top or bottom feed conduit connection. Hubs are suitable for use with conduit having ANSI standard taper pipe thread. Closing plates available for A, A-L and B hub openings.

Filler plates

Snap-in style filler plates are accessories purchased separately available to cover unused spaces. HOMFP and QOFP filler plates available for branch circuit breaker spaces in all of our covers.

Different meter socket types

Ring or ringless type meter socket designs available. After all work has been done and the meter has been fastened, a sealing or locking mechanism is placed in either form. Check with your local utility the sort of meter mounting to be utilized in a given location.

Meter Main Technical Information

100–200 A Rainproof Meter Main Technical Information

QO Rainproof Meter Mains (1Ø3W–120/240 Vac Rainproof–UL Listed)

Cat. No.

Rating (A)

Bypass Type

Service (Type of Feed)

SCCR (kA)

Service Disconnect(s)

Load Center and Branch Circuit Breakers *

Hub Type *

Line side Main Lugs AWG/kcmil (Al/Cu)

Service Ground Lug AWG/kcmil (Al/Cu)

2P Circuits (Max.)

Type *

Rating (A) Max.

Max. Quantity

Rating (A) Max.

Spaces 1P
Circuits Tandems

Ring Type

Surface Mount Only

C125RB

125

None

OH/UG

10

1

QOM1-VH

125

B

4–1/0

8–1/0

CM200S

200

None

OH/UG

22

1

QOM2-VH

200

A

4–250

(2) 8–2/0

C2M200S

200

None

OH/UG

22

1

QOM2-VH

200

A

4–250

(2) 8–2/0

QO-VH

50

C4L200S

200

None

OH/UG

10

2

QO

100

A

4–250

(2) 8–2/0

Ringless Type

Surface Mount Only

RC200S *

200

None

OH/UG

22

1

QOM2-VH

200

A

6–350

(2) 8–2/0

RCM200SL * *

200

Lever

OH/UG

10

1

QOM2-VH

200

A

6–350

8–1/0

RC2M200S *

200

None

OH/UG

22

1

QOM2-VH QO-VH

200

A

6–350

(2) 8–2/0

50

RC2M200SH *

200

Horn

OH/UG

22

1

QOM2-VH QO-VH

200

A

6–350

(2) 8–2/0

50

RC2M200SL * *

200

Lever

OH/UG

10

1

QOM2-VH QO-VH

200

A

6–350

8–1/0

50

QC12L200C *

200

None

OH/UG

22

6

QO-VH

200 *

A

6–350

12–2/0

Surface Mount Only, Supplied with Feed -Thru Lugs and provisions for Branch Circuit Breakers

QC816F100CH * * *

100

Horn

OH/UG

22

1

QOM2100VH *

100

8

16

8

100

A

6–350

12–2/0

QC816F125C * *

125

None

OH/UG

22

1

QOM2125VH *

125

8

16

8

100

A

6–350

12–2/0

QC816F150S * *

150

None

OH/UG

22

1

QOM2150VH *

150

8

16

8

150 *

A

6–350

8–2/0

QC816F150C *

150

None

OH/UG

22

1

QOM2150VH *

150

8

16

8

150 *

A

6–350

12–2/0

QC816F200S * * *

200

None

OH/UG

22

1

QOM2200VH *

200

8

16

8

200 *

A

6–350

8–2/0

QC816F200CH * *

Horn

12–2/0

QC816F200SL * * *

Lever

200

8–2/0

Homeline Rainproof Meter Mains (1Ø3W–120/240 Vac Rainproof–UL Listed)

Cat. No.

Rating (A)

Bypass Type

Service (Type of Feed)

SCCR (kA)

Service Disconnect(s)

Load Center and Branch Circuit Breakers *

Hub Type *

Line side Main Lugs AWG/kcmil (Al/Cu)

Service Ground Lug AWG/kcmil (Al/Cu)

2P Circuits (Max.)

Type *

Rating (A) Max.

Max. Quantity

Ampere Rating Max.

Spaces 1P
Circuits Tandems

Ring Type

Surface Mount Only

SC8L125S

125

None

OH/UG

10

4

HOM

125

A

6–2/0

6–2/0

SC12L200S

200

None

OH/UG

10

6

HOM

200*

A–L

4–250

8–2/0

Semi-flush Mount only

SC8L125F

125

None

OH/UG

10

4

HOM

110

A or B30

6–2/0

6–2/0

SC12L200F

200

None

OH

SCTK20.

Order separately. See Other Accessories .
*
/UG

10

6

HOM

200*

A–L

4–250

8–2/0

Surface Mount —Supplied with Feed -Thru Lugs and provisions for Branch Circuit Breakers

SC816D150C *

SC200F flange kit (order separately).

*

150

None

OH/UG

10

1

HOM2150*

150

8

16

8

100 *

A or A–L

6–300

8–1/0

HOM

50

SC816D200C *

SC200F flange kit (order separately).

*

200

None

UG

10

1

HOM2200 *

200

8

16

8

100 *

A or A–L

6–300

8–1/0

HOM 50

Ringless Type

Surface Mount Only

RC8L125S *

125

None

OH/UG

10

4

HOM

125 *

A

6–2/0

6–2/0

RC12L200C *

200

None

OH/UG

22

6

HOM

200 *

A

6–350

12–2/0

Surface Mount Only, Supplied with Feed-Thru Lugs and provisions for Branch Circuit Breakers

RC816F100SH * * *

100

Horn

OH/UG

22

1

QOM2100VH *

100

8

16

8

100

A

6–350

8–2/0

RC816F100CH * * *

QOM2100VH *

12–2/0

RC816F125CH * *

125

Horn

OH/UG

22

1

QOM2125VH *

125

8

16

8

100

A

6–350

12–2/0

RC816F150C * *

150

None

OH/UG

22

1

QOM2150VH*

150

8

16

8

150 *

A

6–350

12–2/0

RC816F150SH * * *

Horn

QOM2150VH*

8–2/0

RC816F150CH * * *

QOM2150VH *

12–2/0

RC816F150SL * * *

Lever

QOM2150VH *

200

150 8–2/0

RC816F200S * * *

200

None

OH/UG

22

1

QOM2200VH *

200

8

16

8

200 *

A

6–350

8–2/0

RC816F200C * *

QOM2200VH *

12–2/0

RC816F200SH

Horn

QOM2200VH *

8–2/0

RC816F200CH * * *

QOM2200VH *

12–2/0

RC816F200SL* * * *

Lever

QOM2200VH *

200 8–2/0

RC816D200CH

SC200F flange kit (order separately).

*
* * *

200

Horn

OH/UG

10

1

HOM2200 *

200

8

16

8

100 *

A

6–300

6–1/0

HOM

50

400 A Rainproof Meter Main Technical Information

QO Rainproof PoN Meter Mains (1Ø3W–120/240 Vac Rainproof–UL Listed)

Cat. No.

Rating (A)

Bypass Type

Service (Type of Feed)

SCCR (kA)

Load Center and Service Disconnect(s) * Branch Circuit Breakers *

Hub Type *

Line side Main Lugs AWG/kcmil (Al/Cu)

Service Ground Lug AWG/kcmil (Al/Cu)

2P Circuits (Max.)

Type *

Rating (A) Max.

Max. Quantity

Rating (A) Max.

Spaces

1P

Circuits

Tandems

Ring Type

Surface and Semiflush Mount *

CU816D400PCN * *

400

None

UG

25

1

QDL22200 *

200

8

16

8

200

A–L

(2) Studs

4–250

QDL, QGL, QJL *

CU816D400PCB * * *

400

Class 320 Manual Bypass

UG

25

1

QDL22200 *

200

8

16

8

200

A–L

(2) Studs

4–250

QDL, QGL, QJL*

CUM400CB * *

400

Class 320 Manual Bypass

UG

65 *

1

LJL36400U31X *

400

2 *

200

A–L

(2) Studs

4–250

Ringless Type

QCD400PSL

400

Class 320 Lever

OH/UG

25

1

QDLk, QGL, QJL *

200

200

A-L

4-600 (2) 1/0-350

12-2/0

Surface Mount Only, Supplied with Feed-Thru Lugs and Provisions for Branch Circuit Breakers

QU816D400PSL * * *

400

*

UG

25

1

QDL22200 *

200

8

16

8

200

A–L

(2) Studs

4–250

QDL, QGL, QJL*

QC816D400PSL* *

400

Class 320 Lever

OH/UG

25

1

QDL22200*


QDL, QGL, QJL*

200

8

16

8

200

A–L

4-600 (2) 1/0- 350

12-2/0

Surface and Semiflush Mount *

QU816D400PCL * * * *

400

Class 320 Lever

UG

25

1

QDL22200 *

200

8

16

8

200

A–L

(2) Studs

4–250

QDL, QGL, QJL*

QUM400CL * *

400

Class 320 Lever

UG

65*

1

LJL36400U31X *

400

2 *

200

A–L

(2) Studs

4–250

Homeline Ringless Type

Surface Mount Only, Supplied with Feed-Thru Lugs and Provisions for Branch Circuit Breakers

RC816D400PSL* *

400

Class 320 Lever

OH/UG

25

1

QDL22200*

QDL, QGL, QJL*

200

8

16

8

200

A–L

4-600 (2) 1/0- 350

12-2/0

100–200 A Solar Ready Plug-on Neutral (PoN) Meter Mains

QO Solar Ready PoN Meter Mains (1Ø3W–120/240 Vac Rainproof–UL Listed)

Cat. No. Amperage Rating Bus Bar Ampere Rating Bypass Type Service (Type of Feed) Service Disconnect(s) Load Center and Branch Circuit Breakers (Order separately) Hub Type (Order separately) Line side Main Lugs AWG/kcmil (Al/Cu) Service Ground Lug AWG/kcmil (Al/Cu)
2P Circuits Type (Factory installed except where noted) Spaces Circuits Tandems Ampere Rating Max.
Ring Type, QO
Surface Mount Only

CU816F100PS* *

100

225

None

UG

22 kA

1

QOM2100VH

8

16

8

70

A-L

4-250

14-2/0 CU 12-2/0 AL

CU48F200PS * *

200

225

None

UG

22 kA

1

QOM2200VH

4

8

4

110

A-L

4-250

14-2/0 CU 12-2/0 AL

CU816F200PS * *

8

16

8

Ringless, QO
Surface Mount Only

QU48F100PS *

100

225

None

UG

22 kA

1

QOM2100VH

4

8

4

70

A-L

4-250

14-2/0 CU 12-2/0 AL

QU48F100PSL *

Lever

QU48F125PS *

125

225

None

UG

22 kA

1

QOM2125VH

4

8

4

70

A-L

4-250

14-2/0 CU 12-2/0 AL

QU48F150PS *

150

225

None

UG

22 kA

1

QOM2150VH

4

8

4

110

A-L

4-250

14-2/0 CU 12-2/0 AL

QU816F150PS *

8

16

8

QU48F200PS *

200

225

None

UG

22 kA

1

QOM2200VH

4

8

4

110

A-L

4-250

14-2/0 CU 12-2/0 AL

QU816F200PS *

8

16

8

QU816F200PSL *

Lever

QU816M200PS

None

Homeline Solar Ready PoN Meter Mains (1Ø3W–120/240 Vac Rainproof–UL Listed)

Cat. No.

Rating (A)

Bus Bar Rating (A)

Bypass Type

Service (Type of Feed)

SCCR (kA)

Service Disconnect(s)

Load Center and Branch Circuit Breakers *

Hub Type *

Line side Main Lugs AWG/kcmil (Al/Cu)

Service Ground Lug AWG/kcmil (Al/Cu)

2P Circuits

Type (Factory installed except where noted)

Spaces

Circuits

Tandems

Rating (A) Max.

Ring Type, Homeline
Surface Mount Only

SU816F100PS * *

100

225

None

UG

22

1

QOM2100VH

8

16

8

70

A-L

4–250

14–2/0 Cu 12–2/0 Al

SC816F150PS * *

150

225

None

OH/UG

22

1

QOM2150VH

8

16

8

150

A-L

4–250

8–2/0

SU48F200PS * *

200

225

None

UG

22

1

QOM2200VH

4

8

4

110

A-L

4–250

14–2/0 Cu 12–2/0 Al

SU816F200PS * *

None

UG

22

QOM2200VH

8

16

8

110

14–2/0 Cu 12–2/0 Al

SC816F200PS * *

None

OH/UG

22

QOM2200VH

200

8–2/0

Semiflush Mount Only

SC816F200PF * *

200

225

None

OH */UG

22

1

QOM2200VH

8

16

8

200

A-L

4–250

8–2/0

Ringless, Homeline
Surface Mount Only

RU48F100PS *

100

225

None

UG

22

1

QOM2100VH

4

8

4

70

A-L

4–250

14–2/0 Cu 12–2/0 Al

RU48F100PSL *

Lever

QOM2100VH

RU48F125PS *

125

225

None

UG

22

1

QOM2125VH

4

8

4

70

A-L

4–250

14–2/0 Cu 12–2/0 Al

RU48F150PS *

150

225

None

UG

22

1

QOM2150VH

4

8

4

110

A-L

4–250

14–2/0 Cu

RU816F150PS *

QOM2150VH

8

16

8

12–2/0 Al

RU48F200PS *

200

225

None

UG

22

1

QOM2200VH

4

8

4

110

A-L

4–250

14–2/0 Cu

RU816F200PS *

8

16

8

12–2/0 Al

RU816F200PSH *

Horn

RU816F200PSL *

Lever

RU816M200PS

None

Wiring Diagram Label Sample

Meter Main Wiring Diagrams

NOTE: See each catalog number associated technical drawing online for additional wiring diagram details.

Standard Meter Mains (400 A)

Cat. No.

CUM400CB

Cat. No.

QUM400CL

Solar Ready Plug-on Neutral (PoN) Meter Mains

NOTE: See each catalog number’s associated technical drawing online for additional wiring diagram details.
QR Code is a registered trademark of DENSO WAVE INCORPORATED in Japan and other countries.

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