Thomas & Betts Square Boxes and Accessories Catalog

Square Boxes and Accessories

4" Square Old-Work Box
with Swing Ears

Boxes & Covers — Steel City

CAt. No.

DesCriptioN

stD.
CtN.

52171-oW Metallic 4"-Sq. x 21⁄8"D 25

Old-Work Box with factory-mounted swing ears

oW sWiNG eAr Swing Ears only (for field installation) with self-threading screws 50

(25 pair)

4" Square Boxes

kNoCkouts (iN.)

Depth

CAt. No.

Cu. iN.

(iN.)

CApACity ClAmps Brkts.

eA. siDe
CoNDuit

eA. eND

CoNDuit

With Non-Metallic Sheathed Cable Clamps

52151 N 11⁄2 21.0 C-5 — 2–1⁄2, 2 1–1⁄2 50

1

52151 ms N* 1

52151 BN* 1

52151 VN* 1

52151 CVN* 1

52151CVNp* 1

52171 N 2

⁄2 21.0 C-5 MS 2–1⁄2, 2 1–1⁄2 25

1

⁄2 21.0 C-5 B 2–1⁄2, 2 1–1⁄2 25

1

⁄2 21.0 C-5 SV 2–1⁄2, 2 1–1⁄2 25

1

⁄2 21.0 C-5 CV 2–1⁄2, 2 1–1⁄2 25

1

⁄2 21.0 C-5 CV 2–1⁄2, 2 1–1⁄2 25

1

⁄8 30.3 C-5 — 2–1⁄2, 2 1–1⁄2 25

52171-VN* 21⁄8 30.3 C-5 SV 2–1⁄2, 2 1–1⁄2 25

1

⁄2, 3⁄4E

1–

1

⁄2, 3⁄4E

1–

1

⁄2, 3⁄4E

1–

1–1⁄2, 3⁄4E

1

⁄2, 3⁄4E

1–

1

⁄2, 3⁄4E

1–

1

⁄2, 3⁄4E

1–

1

⁄2, 3⁄4E

1–

With Conduit KOs

52141-1/2 11⁄4 18.0
52151 1/2 1

1

⁄2 21.0

52151-3/4 11⁄2 21.0

52151 1/2 3/4 11⁄2 21.0

521511234p 11⁄2 21.0

—

— 2–1⁄2 3–1⁄2 5–1⁄2 50

—

— 3–1⁄2 3–1⁄2 5–1⁄2 50

—

— 2–3⁄4 2–3⁄4 3–1⁄2, 50

—

— 2–1⁄2, 2–1⁄2, 3–1⁄2, 50

—

— 2–1⁄2, 2–1⁄2, 3–1⁄2, 50

3

⁄4 1–3⁄4 2–3⁄4

1–

3

⁄4 1–3⁄4 2–3⁄4

1–

52151-3/4-W 11⁄2 21.0 — — 2–3⁄4 2–3⁄4 3–1⁄2, 50

52151B1234* 11⁄2 21.0

52151-1/2 & 3/4-eW 2–

521511234eWGB 2–

(Ground bump) 1

1

⁄2 21.0

1

1

⁄2 21.0

521511234eWGBp 2–
(Ground bump with

1

⁄2" ground wire)

10

* All Bracketed boxes come complete with eccentric knockouts.
Per UL 514A, suitable for use without a bonding jumper in circuits

above or below 250 volts. Pigtail wire is #12 AWG insulated, 10

11⁄2 21.0

—

B 2–1⁄2, 2–1⁄2, 3–1⁄2, 25

1

⁄2, 1–3⁄4, 2–1⁄2,

1–

3

⁄4E

1

—

— 1–1⁄2, 1–1⁄2, 2–1⁄2,

—

— 1–1⁄2, 1–1⁄2, 2–1⁄2,

—

— 1–1⁄2,

⁄2, 2–1⁄2, 3–1⁄2, 50

3

⁄4E

1

⁄2, 2–1⁄2, 2–1⁄2, 50

3

⁄4E

1

⁄2, 2–1⁄2, 2–1⁄2, 50

3

⁄4E

1

⁄2" long.

3

⁄4E

3

⁄4E

3

⁄4E

1–1⁄2,

3

⁄4E

Bottom
CoNDuit

3

⁄4

2–

3

⁄4

2–

3

⁄4E

3

⁄4E

3

⁄4E

2–1⁄2,

3

⁄4E

stD.
CtN.

OW Swing Ears52171-OW

52151 N 52151 MS N*

52151 VN*
SV bracket

mounted flush

52151 1/2 52151-3/4

521511234P 52151-3/4-W 52151B1234

MS bracket for

15⁄8", 21⁄2", 35⁄8", 4"

52151 CVN*

CV bracket

mounted flush

52171-VN*
SV bracket

mounted flush

52151 BN*

B bracket

mounted flush

52151 CVNP

52141-1/252171 N

52151 1/2 3/4

B Bracket mounted flush

®

Metallic Boxes

www.tnb.com

United States

Tel: [phone]

800.816.7809
Fax: [phone]

52151-1/2 & 3/4-EW

Technical Services

Tel: [phone]

521511234EWGB 521511234EWGBP

A-37

Square Boxes and Accessories

4" Square Boxes (continued)

cAt. no.

Metallic Boxes

®

Boxes & Covers — Steel City

With Conduit KOs (continued)

521511234eWp* 2–1⁄2, 2–1⁄2, 3–1⁄2, 50

52151 ms 1/2 & 3/4* 2–

52151-V-1/2 & 3/4* 2–

52151 cV 3/4* 1
52151 cV 1/2 3/4* 2–

52151DV12* 1

521711234e

521711234ep

(With 101⁄2" ground wire)

52171 ms 1/2 3/4*

52171msp*

(With 101⁄2" ground wire)

52171 3/4

52171 1

52171 V 1/2 & 3/4*

52171-cV-1/2 & 3/4*

52171-eW-ssX*

521711234ep*

52171-B-1/2 & 3/4

* All bracketed boxes come complete with eccentric knockouts.
Per UL514A, suitable for use without a bonding jumper in circuits
above or below 250 volts. Pigtail wire is #12 AWG insulated, 101⁄2" long.

KnocKouts (In.)

Depth

cu. In.

(In.)

cApAcIty clAmps BrKts.

1

⁄2 21.0 — — 1–1⁄2, 1–1⁄2, 2–1⁄2,

1

1

⁄2 21.0 — MS 1–1⁄2, 1–3⁄4, 2–1⁄2,

1

11⁄2 21.0 — SV 1–1⁄2, 1–3⁄4, 2–1⁄2,

1

⁄2 21.0 — CV 2–3⁄4 2–3/4 3–1⁄2 25

1

⁄2 21.0 — CV 1–1⁄2, 1–3⁄4, 2–1⁄2,

1

1

⁄2 21.0 — DV 2–1⁄2, 3–1⁄2, 3–1⁄2, 25

eA. sIDe

eA. enD

conDuIt

3

⁄4E

3

⁄4E

3

⁄4E

3

⁄4E

3

⁄4E

Bottom

conDuIt

conDuIt

3

⁄4E

1

⁄2, 2–1⁄2, 3–1⁄2, 25

3

⁄4E

1

⁄2, 2–1⁄2, 3–1⁄2, 25

3

⁄4E

1

⁄2, 2–1⁄2, 3–1⁄2, 25

3

⁄4E

3

⁄4E

3

⁄4E

3

⁄4E

3

⁄4E

3

⁄4E

3

⁄4E

21⁄8 30.3 — — 2–1⁄2, 2–1⁄2, 3–1⁄2, 50

1–1⁄2, 1–1⁄2, 2–1⁄2,

3

3

⁄4E

3

⁄4E

⁄4E

21⁄8 30.3 — — 2–1⁄2, 2–1⁄2, 2–1⁄2, 50

1–1⁄2, 1–1⁄2, 2–1⁄2,

3

3

⁄4E

1

⁄8 30.3 — MS 1–1⁄2, 1–1⁄2, 2–1⁄2,

2

2–1⁄2, 2–1⁄2, 3–1⁄2, 25

3

⁄4E

3

⁄4E

⁄4E

3

3

⁄4E

⁄4E

21⁄8 30.3 — MS 2–1⁄2, 2–1⁄2, 3–1⁄2, 25

1–1⁄2, 1–1⁄2, 2–1⁄2,

3

3

21⁄8 30.03 — — 2–3⁄4 2–3⁄4 3–1⁄2, 50

⁄4E

21⁄8 30.03 — — 2–1 2–1 3–1⁄2, 50

1

⁄8 30.03 — SV 1–1⁄2, 1–1⁄2, 2–1⁄2,

2

2–1⁄2, 2–1⁄2, 3–1⁄2, 25

3

⁄4E

3

⁄4E

⁄4E

3

⁄4

2–

3

⁄4

2–

3

3

⁄4E

⁄4E

2–1⁄2, 2–1⁄2, 3–1⁄2, 25

21⁄8 30.03 — CV 1–1⁄2, 1–1⁄2, 2–1⁄2,

1

⁄8 30.03 — SSX — — — —

2
21⁄8 30.03 — v 2–1⁄2, 2–1⁄2, 3–1⁄2, 25

3

3

⁄4E

⁄4E

1

⁄2, 1–1⁄2, 2–1⁄2,

1–

3

3

⁄4E

⁄4E

3

⁄4E

3

⁄4E

2–1⁄2, 2–1⁄2, 3–1⁄2, 25

21⁄8 30.03 — — 1–1⁄2, 1–1⁄2, 2–1⁄2,

3

3

⁄4E

3

⁄4E

⁄4E

stD.
ctn.

521511234EWP 52151 MS 1/2 & 3/4

52151 CV 3/4

CV Bracket

mounted flush

521711234E

52171MSP

52171 V 1/2 & 3/4

SV bracket

mounted flush

For use on 15⁄8",

21⁄2", 35⁄8", 4" studs

52151 CV 1/2 3/4

CV Bracket

mounted flush

521711234EP

52171 3/4

52171-CV-1/2 & 3/4

CV bracket

mounted flush

52151-V-1/2 & 3/4

SV Bracket

mounted flush

52151DV1/2

DV Bracket

provides offset

52171 MS 1/2 3/4*

MS bracket for 115⁄8", 21⁄2",

35⁄8", 4", 6" metal studs

52171 1

521711234EP

A-38

cAt. no.

DescrIptIon eArs BrAcKets

eAch sIDe

Ko

eAch enD

Ko

Bottom

Ko

cu. In.

cApAcIty

stD.
ctn.

521911234 31⁄2"-deep 4"-square red box — — 4 x 1⁄2" & 3⁄4" Combo 2 x 1⁄2" & 3⁄4" Combo 4 x 1⁄2" & 3⁄4" Combo 46 24

1

521911234cV 3

⁄2"-deep 4"-square red box w/side mounting bracket — CV 4 x 1⁄2" & 3⁄4" Combo 2 x 1⁄2" & 3⁄4" Combo 4 x 1⁄2" & 3⁄4" Combo 46 10

United States

Tel: [phone]

Technical Services

Tel: [phone]

www.tnb.com

800.816.7809
Fax: [phone]