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NEMA Boxes UL/NEMA/IEC NBB Series

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Most of these gasketed enclosures have been tested and approved to UL508-4x specifications, with a few being approved to UL50-4x. All enclosures meet NEMA 1, 4, 4x and IEC529-IP66 requirements, which allows them to be used in many wet, dirty and/or corrosive environments.

Design Features

Designed to IP66 of IEC 529 and NEMA 1, 4 and 4x specifications.
UL Listed to UL508-4x requirements
Indoor Versions:
- ABS plastic enclosures are molded out of light gray material with UL94-HB flammability rating. (Not UL Listed)
- ABS/PC blended plastic enclosures are molded out of light gray material with UL94-5VA flammability rating. Suggested service temperature range -40C to +70C.
- Clear doors, for all models, are molded out of polycarbonate material with UL94-V0 flammability rating
Outdoor Versions:
- *PC/PBT blended plastic enclosures are molded out of light gray material with UL94-5VA flammability rating and UV stabilized
Economy Versions:
- ABS plastic enclosures are molded out of light gray material with UL94-HB flammability rating. (Not UL Listed)
- All plastic constuction

PLASTIC BOXES - NBB SERIES

ABS Version Catalog Number**

UL508-4X Indoor Version

Catalog Number

UL508-4X Outdoor Version

Catalog Number

Dwgs.

External Dimensions

Internal Dimensions

Wgt. Lbs.

Solid Door

Clear Door

Solid Door

Clear Door

NBB-22220#

NBB-10220#

NBB-10230#

N/A

OBS

5.11"

3.94"

2.75"

1.96"

4.37"

3.18"

2.53"

0.5

NBB-22221#

NBB-10221#

NBB-10231#

N/A

OBS

5.90"

3.94"

2.75"

1.96"

5.11"

3.18"

2.53"

0.6

NBB-22222#

NBB-10222#

NBB-10232#

N/A

OBS

7.87"

3.94"

2.75"

1.96"

7.08"

3.18"

2.53"

0.7

NBB-22223#

NBB-10223#

NBB-10233#

N/A

OBS

10.63"

3.94"

2.75"

1.96"

9.88"

3.18"

2.53"

1.1

NBB-22240

NBB-10240

NBB-10260

NBB-15240

NBB-15260

5.90"

3.57"

2.75"

5.04"

3.27"

1.2

NBB-22241

NBB-10241

NBB-10261

10.73"

6.79"

4.33"

3.15"

9.84"

5.90"

4.07"

1.7

NBB-22243

NBB-10243

NBB-10263

NBB-15243

11.28"

7.47"

5.50"

4.33"

10.46"

6.65"

5.25"

2.2

NBB-22245

NBB-10245

NBB-10265

NBB-15245

13.00"

7.04"

5.86"

12.14"

6.79"

4.4

NBB-22247

NBB-10247

NBB-10267

NBB-15247

15.68"

11.73"

6.30"

5.11"

14.88"

10.89"

6.03"

4.2

NBB-22251

NBB-10251

NBB-10271

14.52"

10.55"

5.90"

4.72"

13.74"

9.76"

5.64"

3.5

NBB-22253

NBB-10253

NBB-10273

NBB-15253

19 17"

14.64"

7.85"

6.67"

18.33"

13.75"

7.60"

6.6

NBB-32640#

N/A

OBS

5.90"

3.57"

2.76"

5.30"

3.35"

0.8

NBB-32643#

N/A

OBS

11.28"

7.47"

6.30"

5.12"

10.85"

6.91"

6.09

2.8

NBB-32647#

N/A

OBS

15.68"

11.73"

6.30"

5.12"

14.75"

10.81"

6.09"

5.6

NBB-32653#

N/A

OBS

19.17"

14.64"

6.30"

5.12"

18.76"

14.74"

6.06"

9.6

NBB SERIES OBSOLETE PARTS SUBSTITUTION GUIDE
Obsolete Part Number	Suggested Replacement Part	Obsolete Part Number	Suggested Replacement Part	Obsolete Part Number	Suggested Replacement Part	Obsolete Part Number	Suggested Replacement Part
NBB-10220	NBF-32102	NBB-10231	NBF-32204	NBB-15258	NBF-32346	NBB-22258	NBF-32046
NBB-10221	NBF-32104	NBB-10232	NBF-32206	NBB-22220	NBF-32002	NBB-32640	NBF-32010
NBB-10222	NBF-32106	NBB-10233	NBF-32208	NBB-22221	NBF-32004	NBB-32643	NBF-32018
NBB-10223	NBF-32108	NBB-10258	NBF-32146	NBB-22222	NBF-32006	NBB-32647	NBF-32026
NBB-10230	NBF-32202	NBB-10278	NBF-32246	NBB-22223	NBF-32008	NBB-32653	NBF-32032