The UL 50E Spray Rain Test Apparatus is designed to assess the water-resistance performance of electrical enclosures according to UL 50E requirements. It reproduces rainfall and 45-degree angled spray conditions to determine whether equipment enclosures can prevent water from entering during outdoor or semi-outdoor operation. The system is commonly used to test products such as electrical cabinets, outdoor lighting, control boxes, power units, and communication equipment that need dependable protection against rain and moisture.
The equipment is developed to meet the requirements of UL 50E Type 3R and is suitable for testing in accordance with related standards such as UL 50, UL 8750, UL 1598, UL 153, UL 48, and CSA enclosure protection specifications. By meeting these standards, the apparatus enables manufacturers to perform product development testing, certification preparation, and routine quality verification with a reliable and consistent testing solution.
R-UL 020
LIB Industry
| Quantity: | |
|---|---|
LIB's UL 50E Spray Rain Test Apparatus is manufactured using SUS304 stainless steel and formed aluminum, providing strong corrosion resistance and long service life in continuous wet testing environments. The spray system height can be freely adjusted, allowing the intersection point of the water jets to be positioned roughly between 1000 mm and 2000 mm above the floor. This adjustable structure makes the equipment suitable for testing enclosures of different sizes and installation heights.
Key Advantages
1. Designed to Meet UL 50E Requirements: The apparatus follows the specifications defined in UL 50E, including nozzle arrangement, spray angle, hole size, and water pressure. The 45° spray configuration reproduces realistic rain conditions, helping manufacturers evaluate enclosure protection performance and prepare for certification testing.
2. Adjustable Spray Structure for Different Products: The spray device can be adjusted within a height range of about 1000–2000 mm, allowing the system to test a variety of enclosure sizes, from compact electrical boxes to large control cabinets.
3. Accurate Water Flow and Pressure Control: An electromagnetic flowmeter and pressure regulation system maintain stable water supply conditions. The typical working pressure is around 34.5 kPa, ensuring consistent spray intensity and repeatable testing results.
4. Durable Industrial Materials: The main structure is built from SUS304 stainless steel to resist corrosion and wear during long-term water exposure. The formed aluminum frame provides strong structural support while remaining lightweight and easy to maintain.
5. Simple Operation and Flexible Placement: The equipment is designed for straightforward operation with mechanical adjustment for spray positioning. A reinforced base with locking casters allows the system to be easily moved and securely positioned within laboratories or test areas.
Core Parameters
| Name | Waterproof UL 50E Spray Rain Test Apparatus |
Model | R-UL020 |
Overall Dimensions (mm) | 800*1500*2200mm |
Height adjustment range of spray device | 1000-2000mm |
Number of spray head | 4 spray heads(There are 3 spray heads on the top and 1 spray nozzle on the bottom) |
Nozzle spacing | 710mm |
Spraying Hole Diameter | Φ5mm |
Water pressure | 34.5Kpa |
Sample platform size | 500X1500X500 |
Load of sample platform load | 100 Kgs |
Water Pressure Control | Flow meter |
Water supply system | Automatic water supply, Water purification system |
Material | SUS304 stainless steel |
Standard | UL 50E Type 3R |
Typical Tests Performed by the UL 50E Spray Rain Test Apparatus
The UL rain spray test apparatus is mainly used to simulate natural rainfall and 45° angled water spray for evaluating the waterproof performance of electrical enclosures designed for outdoor use. During testing, clean water is delivered at a controlled flow rate of about 10 L/min (±5%), with stable pressure maintained in line with UL 50E requirements. The sample is exposed to continuous multi-angle spraying for a defined test period, allowing engineers to check for water penetration, leakage points, and sealing effectiveness. This type of testing is commonly applied to outdoor lighting fixtures, street lamps, electrical control cabinets, junction boxes, and communication enclosures to verify their resistance to real outdoor rain conditions.
Video of the UL 50E Spray Rain Test Apparatus
FAQs on the UL 50E Spray Rain Test Apparatus
Q1: Can the Waterproof UL 50E Spray Rain Test Apparatus be customized for larger enclosures?
Yes. The sample platform size, overall dimensions, and spray structure can be customized to accommodate larger or non-standard enclosures while still maintaining compliance with UL 50E test principles.
Q2: Does the apparatus require a complex power supply to operate?
No. The rain spray testing function itself does not require an external power supply. The system relies on controlled water pressure and flow, making installation and operation simple and cost-effective.
Q3: How long is the delivery time for customized configurations?
Standard models are typically delivered within 7–15 days. For customized sizes or special configurations, production time may be slightly extended, but LIB closely manages schedules to ensure timely delivery and fast project implementation.
