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Thru-Dex Waterproof Boxes
Waterproof Junction Boxes | Splashproof Junction Boxes


Waterproof Junction Boxes
PX Series
• Ideal for making wiring connections above or below decks, even in areas subject to occasional spray
• Similar to BX Series junction boxes, but made from rugged, non-corrosive, high impact polypropylene
• Snap-on cover provides watertight seal
• “Universal” cut-to -fit (see diagram) graduated diameter cable entries accommodate wide cable range
• Multiple position connector strips with “captive” screw compression wire terminals installed – meets ABYC standards (same type as CS-1)
• Multiple knockouts provided for conduit access (in addition to cable entries)
• IEC Waterproof Rating: IP54 – “Water projected in jets against the enclosure from any
direction shall have no harmful effects.”
DC Power Onboard is supplied with Newmar’s Waterproof and Splashproof Junction Boxes to provide secure, protected below-deck wiring connections for yachts, recreational crafts, live aboard, commercial and military vessels.
Specifications
Model
PX-1
PX-2
PX-3
Number of Connector Strips
1
2
2
Positions per Strip
6
6
9
Max Wire Gauge
16
16
16
Number of Cable Entry Ports
5
7
7
Number of Cable Entries Installed
3
7
7
Spare Cable Entries Provided
2
0
0
Cable Diameter Range (inches)
.14-.81
.14-.81
.14-1.0
Cable Diameter Range (mm)
3.5-20.5
3.5-20.5
3.5-25.5
Box Size Inches
2.95 x 2.95 x 1.66
3.35" x 3.35 x 1.66
4.45 x 4.45 x 2.29
Box Size  Centimeters
7.5 x 7.5 x 4.2
8.5 x 8.5 x 4.2
11.3 x 11.3 x 5.8

Graduated Diameter, Flexible
Cut-to-fit Cable Entries


Splashproof Junction BoxesDC Power Onboard is supplied with Newmar’s Waterproof and Splashproof Junction Boxes to provide secure, protected below-deck wiring connections for yachts, recreational crafts, live aboard, commercial and military vessels.
BX Series
• Provides for secure, protected below-deck wiring connections, IP rating 54
• rugged cast aluminum box with white enamel finish
• Easy wiring access through multiple grommeted cable entries
• Supplied with high quality connector strips
- secure wires w/compression fittings – no terminals required
(See CS-1and CS-2, for full description – see matrix below for number/gauge of terminals)

Specifications
Model
BX-1
BX-2
BX-3
Number of Connector Strips
1
1
2
Positions per Strip
6
12
11
Max Wire Gauge
16
16
14
Max amps (per Position)
6
6
10
Cable Entries
2
8
2
Max Cable Diameter
.25"
.37"
.59"
Box Sizes - Inches
 2" x 2" x 1.2"
4.4" x 2.4" x 1.2"
4.7" x 3.7" x 1.3"
Box Sizes - Centimeters
5.1 x 5.1 x 3.1
11.2 x 6.1 x 3.1
11.9 x 9.4 x 3.3