Surge protective device type 1+2 (class B+C) SPBT12-280/4 158331

Protection of electrical installations with Eaton surge limiters

The SPBT12-280/4 surge limiter is a key element of every modern electrical installation, providing effective protection against the effects of lightning strikes and switching surges. The class B+C device (Type 1+2) protects against both direct and indirect lightning strikes, minimizing the risk of equipment damage and ensuring uninterrupted power supply. The varistor-based design guarantees a fast response and high energy absorption capacity.

Universal application and high efficiency

The SPBT12-280/4 limiter is designed for use in TN, TN-S and TT installations, making it a universal solution for residential, commercial and industrial buildings. The rated impulse current per pole is 12.5 kA (10/350 µs), and the maximum impulse current is as high as 50kA, ensuring reliable protection even in the event of strong surges. The protection level of 1.5 kV effectively reduces the voltage to safe values.

User comfort and easy installation

The device has an optical indicator of insert failure, which facilitates quick identification of the need for replacement and minimizes the risk of downtime. Mounting on a standard DIN TH-35 mm rail is simple and intuitive, and the compact size (4 modules) allows for easy integration with existing switchboards. The maximum wire cross-section of 25mm² (solid/stranded) and 35mm² (flexible) ensures compatibility with various types of cabling.

• Versatility: Designed for TN, TN-S and TT installations.
• High efficiency: Impulse current of 12.5 kA per pole, protection level of 1.5 kV.
• Ease of use: Optical indicator of insert failure.
• Easy installation: Standard DIN TH-35 mm rail, compact size (4 modules).
• Safety: The use of varistors ensures a fast response and high energy absorption capacity.
• Durability: Made of high-quality materials guarantees a long service life.
• Compliance with standards: Meets the requirements of IEC 61643-11 and EN 61643-11.

The SPBT12-280/4 limiter is an investment in the safety and reliability of your electrical installation – protection against costly failures and downtime of electrical equipment.