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ProductsUL Rain Test Apparatus / UL Water Spray Rain Test Equipment
UL waterproof UL sprinkler rain test apparatus
UL waterproof UL sprinkler rain test apparatus
UL Rain Test Apparatus
IPX1-IPX9 Waterproof Test EquipmentWaterproof Test Equipment

UL Rain Test Apparatus / UL Water Spray Rain Test Equipment

This UL rain test apparatus is designed to simulate real-world rainfall conditions, fully compliant with UL 50E, UL 1598, and CSA standards. It is widely used to evaluate the waterproof performance of outdoor electrical enclosures, LED luminaires, and electronic products for North American market certification.

UL1598 Rain Test Apparatus Water Spray Test Device




Overview

This UL rain test apparatus is purpose-built to replicate real-world rainfall and water spray conditions, enabling you to verify the waterproof performance and electrical safety of products intended for the North American market. Designed in strict accordance with UL and CSA standards, Top Test UL waterproof testing equipment delivers controlled, repeatable water exposure to validate enclosures, luminaires, and electrical components, ensuring compliance with certification requirements for the US and Canada.Unlike generic IP-rated test equipment, our system is engineered to meet the exacting specifications of UL standards—including nozzle geometry, water pressure, spray angle, and test duration—making it ideal for both in-house quality control and third-party certification testing.



Compliance Standards

Top Test UL rain test apparatus supports a wide range of industry standards for North American certification, including:
  • UL 50E: Standard for Enclosures for Electrical Equipment (NEMA 3R, 4, 4X testing)
  • UL 1598: Standard for Luminaires (outdoor lighting rain testing)
  • UL 60507: Environmental Testing for Electrical Equipment (Figure 38.1 / 38.2)
  • UL 1703 / UL 8750: Photovoltaic Modules and LED Lighting Safety Standards
  • CSA 4.3 / CSA C22.2 No. 94.2: Canadian Equivalent Rain Test Requirements
  • ANSI Z21.10.3 / ANSI Z21.58: Water Spray Test for Gas and Outdoor Appliances
This ensures your test results are fully recognized by certification bodies and regulatory authorities across the United States and Canada.



Key Applications

Designed for testing products exposed to outdoor or damp environments, our system is widely used in industries requiring UL/CSA approval:
  • Outdoor Electrical Enclosures: NEMA 3R/4/4X cabinets, junction boxes, and control panels
  • Lighting Products: LED luminaires, streetlights, floodlights, and decorative lighting
  • Renewable Energy: Solar panels, inverters, and battery storage systems
  • Telecommunications: Outdoor base stations, routers, and networking equipment
  • Automotive & Transportation: Exterior lighting, vehicle electronics, and signaling devices
  • Gas & Outdoor Appliances: Patio heaters, grills, and outdoor kitchen components



Technical Specifications

Parameter
Specification
Nozzle Configuration
3 nozzles (UL standard) / Optional 4-nozzle configuration
Spray Angle
45° from vertical (UL-specified)
Single Nozzle Pressure
34.5 kPa (5 psi)
Total Working Pressure
50–150 kPa
Water Flow Rate
≥10 L/min
Nozzle Spacing
710 mm
Test Distance (Nozzle to Sample)
1400 mm
Height Adjustment Range
1000–2000 mm (handwheel-operated)
Equipment Dimensions
1500 × 800 mm
Pressure Monitoring
Individual gauges for each nozzle + main line gauge
Frame Material
Aluminum alloy (corrosion-resistant, easy cleaning)
Mobility
Lockable casters for easy relocation and fixed positioning



Core Features & Benefits

  • UL-Compliant Nozzles: Original-specification nozzles ensure the correct spray pattern, coverage, and droplet distribution required by UL standards.
  • Precision Pressure Control: Each nozzle has its own pressure gauge and control valve, allowing real-time adjustment and monitoring during tests.
  • Adjustable Height: The nozzle rack is height-adjustable via a handwheel, accommodating products of different sizes without compromising spray alignment.
  • Rugged, Corrosion-Resistant Build: Aluminum alloy frame and stainless steel plumbing ensure long-term durability in wet environments.
  • Mobile Design with Brakes: Lockable casters let you move the system between test areas or secure it in place for stability.
  • Two-in-One Compatibility: Supports both the 45° water spray test (top nozzles) and sprinkler test (optional lower nozzle) for UL 50E compliance.



FAQ

Q: What is the difference between UL rain testing and IP waterproof testing?

A: UL rain testing follows North American safety certification standards, focusing on electrical safety and regulatory compliance for the US/Canada market. IP testing (per IEC 60529) measures general ingress protection levels but does not meet the specific requirements for UL certification. Our system is purpose-built for UL compliance, not just IP ratings.

Q: Which products need UL rain testing?

A: Any outdoor-rated electrical or electronic product sold in North America typically requires UL/CSA rain testing. Common examples include outdoor lighting, solar panels, electrical enclosures, and telecommunications equipment.

Q: How long does a standard UL rain test last?

A: Most UL rain test protocols require continuous water spray for 1 hour at the specified pressure, with the sample positioned in the focal area of the spray pattern.

Q: Do you offer replacement UL spray nozzles?

A: Yes. We supply complete sets of UL-standard spray nozzles (3 or 4 nozzles per set) for our systems and compatible third-party test equipment.


Ready to ensure your products meet North American rain test requirements? Contact us today to discuss your testing needs or request a detailed quotation.
Email:mary@sztoptest.com
Phone:+86 19076186175
WhatsApp:+86 19076186175