34S221K Metal Oxide Varistor – 34S Series | RUILON

The RUILON 34S Series Metal Oxide Varistors are ultra-high energy surge protection components designed for heavy-duty industrial and power system applications. With a large disc diameter and extremely high surge absorption capability, they provide superior protection against lightning strikes, switching transients, and severe overvoltage conditions.

The 34S series is engineered for maximum energy handling, excellent clamping stability, and long operational life, making it ideal for mission-critical electrical infrastructure and high-power systems.

✅ Key Features

• Ultra-high surge energy absorption capability
• Excellent lightning and switching surge protection
• Stable and reliable clamping voltage performance
• Designed for heavy-duty industrial environments
• High endurance against repetitive surge stress
• Long service life with robust disc construction

📌 Applications

• Power transmission and distribution systems
• Industrial surge protection devices (SPD)
• Heavy machinery and factory automation systems
• High-power inverters and converters
• Utility-scale electrical infrastructure
• Telecom base station power systems
• Large-scale electrical installations