Compact Junction Boxes with Cable Glands

A black waterproof junction box is an electrical protective enclosure specifically designed for use in wet, dusty, corrosive, and outdoor environments. Its primary function is to provide waterproof, dustproof, and corrosion-resistant protection for cable connections.
As a protective housing designed to guard against water and dust ingress, its main purpose is to prevent internal components—such as wiring, meters, and instruments—from being compromised by moisture, thereby ensuring their continued performance.

Waterproof Ratings:
Typical waterproof ratings range from IP63 to IP68. Specific classifications are defined as follows:
IP63: Water or rain falling at an angle of up to 60 degrees relative to the enclosure causes no harmful effects.
IP64: Liquid splashed against the enclosure from any direction causes no harmful effects.
IP65: The enclosure withstands direct water jets (washing) without sustaining any damage.
IP66: Suitable for use in environments such as ship cabins.
IP67: Capable of withstanding temporary immersion in water (up to 1 meter in depth) for a short duration.
IP68: Capable of withstanding continuous immersion in water under specific pressure conditions—for example, in deep-sea cable connection applications.

Primary Applications:
Due to regional variations and differences in intended scope, waterproof enclosures are referred to by various names. In industrial settings, common designations include waterproof junction boxes, waterproof instrument enclosures, and waterproof photovoltaic (PV) junction boxes. These enclosures are primarily suitable for use in indoor and outdoor electrical systems, telecommunications, fire safety installations, steel smelting plants, petrochemical facilities, electronics manufacturing, power generation and distribution, railway systems, construction sites, mines and mining operations, airports, hotels, marine vessels, large-scale manufacturing plants, coastal industrial facilities, cargo terminals, wastewater treatment plants, and environmental pollution control facilities.

Core Advantages:
1. High Protection Ratings (IP66/IP68) for Harsh Environments: Depending on the specific model, the black waterproof junction box offers protection ratings ranging from IP66 (protection against powerful water jets) up to IP68 (protection against continuous water immersion). IP66-rated enclosures can withstand heavy rain and high-pressure water jets, while IP68-rated enclosures are suitable for scenarios involving prolonged submersion, such as underground or underwater installations.
2. Multiple Material Options to Suit Various Operating Conditions:
ABS: Economical and practical; features excellent rigidity and high impact strength, making it suitable for indoor or general outdoor environments.
PC/PC-ABS: Offers superior weather resistance, UV protection, and tolerance to extreme temperatures (-40°C to +120°C); features high transparency and is ideal for outdoor scenarios involving prolonged exposure to sunlight.
3. Stable Operation Across a Wide Temperature Range: The operating temperature range of the black waterproof junction boxes varies by material—ABS and PC materials typically operate within a range of -40°C to +80°C.
4. Excellent Flame Retardancy for Safety and Reliability: Most black waterproof junction boxes utilize UL94 V-0 self-extinguishing materials; they cease burning immediately upon removal from a flame, thereby meeting fire safety regulations.

Manufacturing and Quality Control Capabilities
Core Materials: Utilizes ABS and PC materials that comply with RoHS environmental standards.
Molding Process: Injection molding (for plastic components).
Sealing Technology: Employs silicone rubber gaskets or PUR/EPDM foam seals to ensure long-term sealing stability.
Quality Inspection: Subject to 100% testing, including IP waterproof testing, insulation withstand voltage testing, and seal integrity verification.