The UL rain test apparatus from Wewon Environmental Chambers Co., Ltd. are suitable for housing protection grade test, The test water source should be kept stable, Water flow velocity is 10L per min±5%. Ensure that the flow pressure is 50～150kPa. The main function of the Wewon’s UL rain test apparatus is to be used in the simulation of the weather conditions of rain-soaked products, such as lamps and lanterns, electric.
Dedicated rain spray test apparatus are essential tools for carrying out these tests accurately and reliably, Helping to ensure the safety and reliability of outdoor products. UL rain test apparatus used for outdoor installations rain test, for example: Simulation test of street lamp, wall lamp, distribution cabinet, etc. Test standard for UL rain test apparatus will meet the test stardards such as : UL 82 UL 8750 UL 879 UL 50E UL 48 UL 153 UL 1598 UL 154B UL 1703 UL 1741 UL 514B UL 1278 UL 1571 CSA 207 CSA 12 CSA 250｜UL 1995: Heating and Cooling Equipment
To perform a UL rain test , a dedicated rain test apparatus is required. The apparatus typically includes a water tank, a pump, and a calibrated nozzle that can deliver water at a specified flow rate and pressure. The product being tested is placed in a specific position and sprayed with water from the nozzle for a set period of time, typically 30 minutes. After the test, the product is inspected for any signs of water ingress. For a product to pass the UL rain test, it must not have any visible water penetration on the inside of the enclosure or fixture. YouTube Video｜UL 50E Type 3R Rain Spray Test Apparatus
| Model Description | WEW-RTA-UL |
| Machine Dimensions | L1500*W800 mm |
| Height Adjustable | 1000~2000mm |
| Nozzles Quantity | 3 Pieces |
| Surface of water spray | 0-1000mm |
| Water Flow Rate | ≥10L/min |
| Total Flow Pressure | 50~150 Kpa |
| Single Nozzle Pressure | 34.5 Kpa |
| Pressure Gauges | Four Pieces |
Rain spray testing is an essential part of ensuring that products designed for outdoor use meet the necessary safety standards and specifications. Compliance with UL testing standards is often required for products being sold in the US and other countries. By utilizing a dedicated rain spray test apparatus, manufacturers can accurately and reliably test their products for water resistance to ensure that they are safe and reliable for outdoor use. The rain test apparatus for UL rain test and 45 ° water spray test is divided into upper, lower and right three parts. The height of the three dripping heads can be adjusted up and down freely.
Select high quality materials, use advanced technology processing and forming. The inner and outer shell are made of high quality SUS304 stainless steel plate. The sample frame and other accessories design is reasonable and durable. Rain test apparatus for UL test choose the electromagnetic flowmeter, It is composed of electromagnetic flow sensor and electromagnetic flow converter. Based on Faraday electromagnetic influenza should work on principle, It can be used to measure the flow of test water, Meanwhile, It will realize the flow of control adjustment display and integration as well.
The application of UL rain test apparatus: Outdoor lighting, outdoor lamps, automobile lamps, household appliances, electricians, electrical cabinets, power supplies, communication products and signal devices, etc. The spray device for UL rain test apparatus is reasonable in design, precise in manufacture and simple in operation. To avoid the previous similar rain test equipment manually by feeling the inaccuracy and cumbersome adjustment.
The 45 degree water spray test, also known as the ‘rotary nozzle’ test, is another commonly used method for testing the resistance of a product to water ingress. In this test, the product is rotated at a fixed speed while being sprayed with water at a specified flow rate and pressure from a rotary nozzle angled at 45 degrees. The test typically lasts 30 minutes, after which the product is inspected for water ingress.
The damage of natural water, such as rain, sea water and river water to products and materials, causes an inestimable economic loss every year. The damage mainly includes the decline of corrosion and fading deformation strength, expansion and mildew. In particular, Electrical products are prone to fire because of short circuit caused by rain. Therefore, It is an essential key procedure to carry out shell protection water test for specific products or materials
The main function of the rain test apparatus is to test the physical and other related properties of electronic and electrical products, such as lamps and lanterns, electric cabinet and electrical components, under the simulated weather condition of rain. After the test, the performance of the product is judged to meet the requirements through verification. Use this way to improve the product design, verification the use and quality inspection before delivery.
| Standard & Method | Test Name | Water Application Method | Key Parameters | Purpose / Protection Level | UL 50E vs IEC 60529 ~ Water Protection Test Comparison |
| UL 50E Type 3R | Rain Test | Simulated rain falling vertically or at an angle up to 60° | Rainfall rate: ~5.1 mm/min | Protects against falling rain for outdoor enclosures | |
| Test duration: 5 ~ 10 min | |||||
| UL 50E Type 3S | Ice Formation Test | No water spray; enclosure covered with ice, then checked for operation | Enclosure must remain operable after ice formation | Ensures mechanical parts can operate under ice conditions | |
| UL 50E Type 4 / 4X | Hose-down Test | Hose nozzle (Ø12.5 mm) spraying water from all directions | Flow rate: 65 gal/min (240 L/min) | Protects against splashing and hose-directed water | |
| Pressure: 30 psi | |||||
| Distance: 3 m | |||||
| Duration: 5 min | |||||
| UL 50E Type 6 / 6P | Submersion Test | Immersion of enclosure in water | Depth: 1 m (Type 6) | Protects against temporary or prolonged submersion | |
| Deeper or longer (Type 6P) | |||||
| IEC IPX3 | Oscillating Tube Test | Swinging spray tube or moving nozzle up to ±60° | Flow rate: 0.07 L/min per hole | Protects against spraying water up to 60° angle | |
| Duration: 5 min | |||||
| IEC IPX4 | Splashing Water Test | Swinging spray tube ±180° or moving nozzle around sample | Same as IPX3 | Protects against splashing water from any direction | |
| Duration: 10 min | |||||
| IEC IPX5 | Water Jet Test | Ø6.3 mm nozzle spraying from all directions | Flow rate: 12.5 L/min | Protects against low-pressure water jets | |
| Distance: 3 m | |||||
| Duration: 1 min/m² (min. 3 min) | |||||
| IEC IPX6 | Powerful Water Jet Test | Ø12.5 mm nozzle spraying from all directions | Flow rate: 100 L/min | Protects against strong water jets | |
| Distance: 3 m | |||||
| Duration: 1 min/m² (min. 3 min) | |||||
| IEC IPX7 | Temporary Immersion Test | Enclosure immersed in water | Depth: 1 m | Protects against temporary immersion | |
| Duration: 30 min | |||||
| IEC IPX8 | Continuous Immersion Test | Continuous submersion under defined conditions | Depth/time as agreed between manufacturer and user | Protects against long-term immersion |
UL 50E Type 3R Rain Test Apparatus
Specifically engineered for massive test samples like Power Equipment Centers (PECs) and E-Houses. This highly mobile, 5-meter tall gantry system brings the testing facility directly to your custom-built enclosures, eliminating exorbitant transportation costs.
- Perfect for over-sized enclosures up to 4 meters tall.
- Heavy-duty mobile casters with secure mechanical leveling feet.
- Horizontal sliding guide rail for continuous width scanning.
- Lockable ball joints for precise UL 50E spray angle adjustments.
IEC 60529 IPX5/IPX6 Water Jet Nozzle
The ultimate portable testing tool for precise ingress protection validation. Whether mounted on a test rig or used as a handheld device, this standardized nozzle delivers powerful, concentrated water jets to verify the integrity of your equipment’s seals and panel seams.
- Manufactured strictly to IEC 60529 standard specifications.
- Supports both IPX5 (6.3mm) and IPX6 (12.5mm) jet configurations.
- Integrated top-mounted pressure gauge and brass flow valve.
- Ideal for dynamic, continuous scanning of large structures.
| Spray location: Top head place equip with 3 UL spray nozzles | Equipment Features |
| The frame part of the device is made of forming aluminum material, which is stable in structure and easy to clean | |
| Equipment nozzle distribution strictly according to the standard design | |
| The intersection point of nozzle water column is adjustable from 1000mm to 2000mm from the ground | |
| The distance from sprinkler head: 75 mm. You may be interested in visiting UL 50E UL 1598 Rain Spray Test Apparatus | |
| Bracket base with universal brake casters, easy to move and fix | |
| The nozzle holder is movable and can be lifted and lowered freely by the manual stainless steel wheel device | |
| Injection angle of rain test apparatus for UL rain test: 45 to the horizontal | |
| Each sprinkler head is equipped with pressure gauge, measuring range :0~ 0.25 Mpa | |
| This device adopts UL laboratory original imported nozzle, which fully meets UL standard |
