I. Product Overview
Brand & Series PositioningBelonging to the BSUMWELL brand, the PS-NT Series is a line of heavy-duty waterproof junction boxes designed specifically for harsh outdoor environments. Distinct from standard junction boxes, it centers on scenario-specific customized protection, focusing on complex scenarios such as industrial impact, transportation vibrations, and underground erosion. It emphasizes "high-strength durability + professional adaptability" to meet electrical protection needs in long-term harsh outdoor conditions.
Model Naming & Customization Rules
Suffix Meaning: "G" stands for gray cover, and "T" stands for transparent cover, allowing selection based on appearance preferences or on-site lighting conditions. Mainstream models include PS-NT120805G (120×80×50mm gray cover) and PS-NT241990G (240×190×90mm gray cover), where the numbers in the model directly correspond to dimensions (length×width×height, in mm).
Customization Support: On-demand customization of hole positions and diameters is available (to adapt to different wire layouts), and waterproof cable glands can be paired to enhance protection. There is no explicit minimum order quantity (MOQ) for customization; for bulk customization, details need to be confirmed with the manufacturer (e.g., vector files in .ai/.eps format are required for logo printing).
Certifications, Pricing & Supply
Compliance Certifications: The entire series has obtained CE certification (EU electrical safety), ROHS certification (restriction of hazardous substances), and complies with the IEC60439 international electrical standard, making it exportable to most regions worldwide (Europe, North America, Asia, etc.).
Price Range: $0.37–$16.95, increasing gradually with larger sizes (small models offer the best cost-effectiveness, while extra-large models cater to high industrial demands).
Supply Capacity: Regular stock is available (e.g., the core model PS-NT241990G has a stock of 10,000 units). The maximum weekly supply capacity can meet bulk procurement needs, with flexible delivery times (3–5 days for orders under 100 units; production scheduling can be negotiated for orders over 1,000 units).
II. Product Specifications (by Size Category)
The series covers four size categories—"small, medium, large, extra-large"—to meet full-scenario needs from simple wiring to complex power distribution. Key parameters are as follows:
| Size Category | Representative Model | Dimensions (L×W×H mm) | Price Range | Net Weight (KG) | Quantity per Carton (units) | Core Applicable Scenarios |
|---|
| Small | PS-NT120805G/T | 120×80×50 | $0.37–$1.42 | 0.11 | 100 | Small sensors, outdoor single-light wiring |
| Medium | PS-NT151107G/T | 150×110×70 | $0.42–$1.89 | 0.192 | 60 | Trailer lighting control, medium-small equipment power distribution |
| PS-NT241990G/T | 240×190×90 | $4.2–$7.80 | 0.60 | 20 | Factory machine circuits, landscape irrigation main control |
| Large | PS-NT302212G/T | 300×220×120 | $7.39–$11.27 | 0.92 | 20 | Industrial equipment power distribution, large-scale landscape systems |
| PS-NT383012G/T | 380×300×120 | $10.30–$16.95 | 1.69 | 10 | Factory production line power distribution, underground cable branches |
| Extra-Large | PS-NT500×400×200 (mentioned model) | 500×400×200 | - | - | Customized | Complex underground power lines, large industrial control cabinets |
Supplementary Common Specifications
Material: The entire series uses new ABS or PC materials, featuring a smooth and glossy surface. It offers impact resistance, heat resistance (from -20℃ to +80℃), low-temperature resistance, and chemical resistance (tolerating corrosive substances in petrochemical scenarios).
Protection Rating: Most models reach IP65 (dustproof and splash-proof), while some underground/trailer models achieve IP67 (submersible in 1m deep water for 30 minutes, fully waterproof). All models also have UV aging resistance (to prevent brittleness from outdoor exposure).
III. Core Functions & Advantages
1. Scenario-Specific Design: Precise Adaptation to Harsh Environments
This is the most core advantage of the series, with customization for three high-difficulty scenarios:
Adaptation to Concrete Industrial Scenarios: The reinforced shell provides enhanced impact resistance, withstanding collisions from heavy industrial machinery and gravel in construction sites. It is also chemical-resistant (tolerating industrial contaminants like oil and solvents), protecting machine control circuits and equipment power distribution lines.
Adaptation to Trailer/RV Transportation Scenarios: Equipped with sealed cable glands to secure wires and block moisture, the shell also resists vibrations (preventing loose wiring during transportation). It is specifically designed to protect trailer lighting, brake system circuits, and RV mobile power supply.
Adaptation to Underground Scenarios: Adopting a reinforced shell (20%–30% thicker), it tolerates underground soil pressure and microbial erosion, supporting direct underground installation. It protects landscape irrigation cables, driveway sensor lines, and underground power line branches, preventing moisture intrusion.
2. Material & Durability: Long-Term Outdoor Reliability
Material Performance: ABS/PC materials combine high toughness (shatter-resistant) and high insulation (preventing short circuits). They do not become brittle at low temperatures or deform at high temperatures, adapting to an extreme temperature range of -20℃ to +80℃.
Hardware & Sealing: Uses stainless steel screws (rustproof outdoors) and polyamine gaskets (enhancing IP protection). Some models have built-in ≥2 M4 copper nuts for direct mounting of circuit boards/terminals, reducing the need for additional accessories.
3. Protection & Compliance: Comprehensive Safety
Full-Scenario Protection: IP65/IP67 blocks rainwater and dust; UV-resistant coatings slow aging; underground models have additional sealed optimization—providing multi-dimensional protection for circuit safety.
Global Compliance: With complete CE, ROHS, and IEC60439 certifications, it eliminates concerns about regional installation standard restrictions, suitable for both export and domestic use.
4. Installation & Flexibility: Reducing Construction Costs
Installation Methods: Supports wall mounting (reserved screw holes on the base) and underground installation (direct burial of reinforced models). It can be operated by a single person without complex tools.
Adaptability: Reserved mounting holes for circuit boards/DIN rails inside are compatible with electrical accessories of different brands. After customized hole drilling, it can adapt to any wire specification.
IV. Main Application Scenarios
Based on the core of "scenario-specific design," the series accurately covers four fields, with clear functional adaptation logic for each scenario:
| Application Field | Specific Scenarios | Adaptation Advantages |
|---|
| Industrial | Factory machine control circuits, production line power distribution, heavy machinery wiring | Impact resistance, chemical resistance, IP65 protection, adapting to high-dust/oil environments |
| Transportation | Trailer lighting circuits, RV power connections, truck brake system wiring | Sealed cable glands resist vibrations, IP67 moisture protection, tolerating transportation vibrations |
| Landscape Engineering | Garden lighting branches, lawn sprinkler systems, courtyard sensors | Reinforced underground shell resists soil erosion, IP65 rain protection, adapting to outdoor greening environments |
| Underground Power | Underground power line branches, driveway induction coils, community underground power distribution | Resists soil pressure, tolerates underground moisture, IP67 waterproof, preventing circuit short circuits from moisture |
In addition, it can also be used in "outdoor public facilities" (e.g., street lamp power distribution, surveillance equipment circuits) and "petrochemical auxiliary scenarios" (e.g., outdoor wiring for small equipment), offering strong scenario extensibility.
Q1. Can you use the PS-NT series junction box to extend wiring, especially for outdoor or underground scenarios?
Yes—the PS-NT series is well-suited for wiring extension in harsh outdoor/underground environments, with key advantages for this use case:
Sufficient internal capacity: Medium-to-large PS-NT models (e.g., PS-NT302212G/T: 300×220×120mm) have ample space to accommodate wire splices, terminal blocks, or even small junction modules—no need to cram wires, which reduces short-circuit risks.
Sealed extension protection: When extending wires, strip the ends, connect them via insulated terminals (compatible with the box’s ABS/PC plastic), then close the lid tightly. The series’ polyamine gasket and IP65/IP67 rating block moisture/dust from entering the splice area—critical for underground or rainy outdoor extensions (e.g., extending landscape irrigation cables).
Stable wire fixation: Built-in M4 copper nuts inside the box let you secure terminal blocks or wire clamps, preventing extended wires from being pulled loose by wind (outdoor) or soil movement (underground). For long-distance extensions (e.g., 100ft from a shed to a house), pair it with waterproof cable glands (via PS-NT’s custom drilling service) to seal the wire entry/exit points.
Q2. Can I splice a 220-volt wire in the PS-NT series junction box?
Absolutely—the PS-NT series is safe for 220V wire splicing, thanks to its material and design that meet high-voltage insulation requirements:
Practical splicing tips: Use heat-shrinkable insulated sleeves (compatible with PS-NT’s plastic) to cover 220V splices first, then place them in the box. Avoid touching splices directly to the box interior (use terminal blocks instead) — this adds an extra insulation layer, ideal for industrial 220V equipment wiring (e.g., factory machine power extensions).
Q3. How do I install the PS-NT series junction box on a brick wall, a common outdoor mounting surface?
Installing the PS-NT series on a brick wall is straightforward, with steps tailored to its structural design:
Prepare tools & hardware: Use a masonry drill bit (matching the box’s pre-drilled base holes, usually 5-6mm diameter), concrete screws (length ≥50mm to anchor into brick), a drill, and a level.
Mark & drill holes: Hold the PS-NT box against the brick wall (align it horizontally with a level to avoid tilting), mark the positions of the base’s pre-drilled holes, then drill 4-6mm deep holes into the brick (do not drill through the brick to avoid structural damage).
Anchor the box: Insert plastic wall anchors into the drilled holes (to prevent screws from slipping), then place the box back against the wall and drive concrete screws through the box’s base holes into the anchors—tighten until the box is firm (do not over-tighten to avoid cracking the ABS/PC shell).
Seal the base (optional): For extra waterproofing (e.g., heavy rain areas), apply a thin layer of outdoor silicone sealant around the box’s base (compatible with its plastic) to block water from seeping between the box and brick.
Q4. Can armoured cables be used with the PS-NT series junction box in outdoor environments?
Yes—the PS-NT series supports armoured cable use outdoors, with customizations to ensure a tight, waterproof fit:
Customized hole drilling: Armoured cables have thicker, rigid jackets—request PS-NT’s custom hole-drilling service (no MOQ for bulk orders) to match the cable’s outer diameter (e.g., 12-16mm for common armoured cables). This avoids forcing the cable through undersized holes (which would damage the jacket or break the box’s seal).
Waterproof gland pairing: Install armored cable waterproof glands (compatible with PS-NT’s plastic shell) into the custom holes—these glands clamp tightly around the armoured jacket, blocking water from seeping along the cable into the box. This is ideal for outdoor industrial scenarios (e.g., connecting armoured power cables to factory outdoor machinery).
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