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Home / Products / NEMA / IP Rated Boxes / NEMA 1 Steel Junction Box Series / Junction Box with Knockouts JB-3957-KO

JB-3957-KO

Junction Box with Knockouts JB-3957-KO
5 Day Modifications
  • Nema 1 Junction Box Series
2 Videos

Product Details

Model # JB-3957-KO NEMA 1 Steel Junction Box Series
  • Heavy duty 16 GA welded steel construction
  • Screwed on flat cover with key holes for easy assembly
  • Four easily removable concentric knockouts on all four sides for industry standard conduit sizes
  • Four wall mounting holes in back
  • Embossed grounding hole in bottom allows easy access and flush wall mounting.
  • Durable ANSI 65 Gray Powder coating
  • Complies with NEMA and UL Type 1 rating
  • UL Listed File E348279
 Check Stock / Pricing Request ModificationsCompare Sizes and Models
External Size L x W x D: 8.00" x 8.00" x 4.00"
Internal Size L x W x D: 7.88" x 7.88" x 3.88"
Weight: 4.813 lbs
Color: Gray Powder Coat
RoHS Certified: Always Compliant
Knockouts: Knockouts
NEMA Rating: NEMA 1
Mounting Style: Mounting Holes

Drawing

JB-3957-KO Dimensions

OTHER MODELS IN THIS SERIES

Model # External Dimensions Internal Dimensions Knockouts
JB-3960-KO 10.00" x 10.00" x 4.00" 10.0010.004.00 9.88" x 9.88" x 3.88" Knockouts
JB-3960 10.00" x 10.00" x 4.00" 10.0010.004.00 9.88" x 9.88" x 3.88" No Knockouts
JB-3961-KO 10.00" x 10.00" x 6.00" 10.0010.006.00 9.88" x 9.88" x 5.88" Knockouts
JB-3961 10.00" x 10.00" x 6.00" 10.0010.006.00 9.88" x 9.88" x 5.88" No Knockouts
JB-3958-KO 10.00" x 8.00" x 4.00" 10.008.004.00 9.88" x 7.88" x 3.88" Knockouts
JB-3958 10.00" x 8.00" x 4.00" 10.008.004.00 9.88" x 7.88" x 3.88" No Knockouts
JB-3959-KO 10.00" x 8.00" x 6.00" 10.008.006.00 9.88" x 7.88" x 5.88" Knockouts
JB-3959 10.00" x 8.00" x 6.00" 10.008.006.00 9.88" x 7.88" x 5.88" No Knockouts
JB-3950 4.00" x 4.00" x 3.00" 4.004.003.00 3.88" x 3.88" x 2.88" No Knockouts
JB-3950-KO 4.00" x 4.00" x 3.00" 4.004.003.00 3.88" x 3.88" x 2.88" Knockouts
JB-3951 4.00" x 4.00" x 4.00" 4.004.004.00 3.88" x 3.88" x 3.88" No Knockouts
JB-3951-KO 4.00" x 4.00" x 4.00" 4.004.004.00 3.88" x 3.88" x 3.88" Knockouts
JB-3952 6.00" x 4.00" x 3.00" 6.004.003.00 5.88" x 3.88" x 2.88" No Knockouts
JB-3952-KO 6.00" x 4.00" x 3.00" 6.004.003.00 5.88" x 3.88" x 2.88" Knockouts
JB-3944-KO 6.00" x 4.00" x 3.50" 6.004.003.50 5.88" x 3.88" x 3.38" Knockouts
JB-3944 6.00" x 4.00" x 3.50" 6.004.003.50 5.88" x 3.88" x 3.38" No Knockouts
JB-3953-KO 6.00" x 4.00" x 4.00" 6.004.004.00 5.88" x 3.88" x 3.88" Knockouts
JB-3953 6.00" x 4.00" x 4.00" 6.004.004.00 5.88" x 3.88" x 3.88" No Knockouts
JB-3954-KO 6.00" x 6.00" x 3.00" 6.006.003.00 5.88" x 5.88" x 2.88" Knockouts
JB-3954 6.00" x 6.00" x 3.00" 6.006.003.00 5.88" x 5.88" x 2.88" No Knockouts
JB-3945-KO 6.00" x 6.00" x 3.50" 6.006.003.50 5.88" x 5.88" x 3.38" Knockouts
JB-3945 6.00" x 6.00" x 3.50" 6.006.003.50 5.88" x 5.88" x 3.38" No Knockouts
JB-3955-KO 6.00" x 6.00" x 4.00" 6.006.004.00 5.88" x 5.88" x 3.88" Knockouts
JB-3955 6.00" x 6.00" x 4.00" 6.006.004.00 5.88" x 5.88" x 3.88" No Knockouts
JB-3956 8.00" x 6.00" x 4.00" 8.006.004.00 7.88" x 5.88" x 3.88" No Knockouts
JB-3956-KO 8.00" x 6.00" x 4.00" 8.006.004.00 7.88" x 5.88" x 3.88" Knockouts
JB-3957 8.00" x 8.00" x 4.00" 8.008.004.00 7.88" x 7.88" x 3.88" No Knockouts
JB-3957-KO 8.00" x 8.00" x 4.00" 8.008.004.00 7.88" x 7.88" x 3.88" Knockouts