News & Event

WEIPU is pleased to announce that the SP21 and SY21 circular connector series with 2-to-7 pin configurations are now UL 2238 certified and manufactured using UL F1-rated thermoplastic material — providing enhanced safety, durability, and long-term outdoor reliability.

Built for Harsh and Outdoor Environments

With IP68 and IP67 waterproof performance, SP and SY series are well-suited for applications that require strong sealing, UV resistance, and weatherproof reliability. The F1-rated housing material ensures protection against UV exposure, rain, humidity, and high-temperature outdoor conditions, extending service life in demanding environments.

Typical applications include:

• Solar & renewable energy installations
• Outdoor LED lighting systems
• EV charging infrastructure
• Agricultural and farming machinery
• Communication and base station equipment
• Industrial automation and factory equipment

Why UL 2238 Certification and F1 Material Are Important

• UL 2238 is a recognized North American safety standard for interconnecting cables and connector systems used in signal and power transmission. Compliance ensures electrical safety, mechanical reliability, and flame resistance for industrial use.

• The UL F1 rating certifies that the plastic housing can withstand prolonged outdoor exposure, including ultraviolet sunlight, water ingress, temperature fluctuation, and environmental stress — without degrading or losing mechanical integrity.

By combining:

• UL 2238 safety compliance
• IP68 waterproof sealing
• F1-rated outdoor-grade housing

the WEIPU SP21 and SY21 series deliver a high-reliability connector solution for harsh environments, giving system integrators and engineers confidence in long-term performance and safety.