NB30794001. This Single Wall Heat-Shrink Tubing is specifically designed for use with Relays and Circuit Breakers in HVAC systems. With RoHS compliance, it meets strict environmental standards. The NB30794001 tubing provides reliable insulation and protection, ensuring optimal performance and longevity of electrical components. Its durable construction and high-quality materials make it a dependable choice for industrial applications. Upgrade your system with this essential accessory for peace of mind and efficient operation.