Surge protective device type 1+2 (class B+C) SPBT12-280/1 158306

Surge protector for home and industry

The SPBT12-280/1 surge protector is a Class 1+2 (B+C) device designed to protect electrical installations from the effects of atmospheric and switching surges. Built with varistors, it provides effective protection in both residential and industrial facilities. Its compact size – 1 module – makes it easy to mount on a TH-35 mm DIN rail.

Safety and reliability in operation

The device is characterized by high resistance to impulse currents, reaching 12.5 kA (10/350 µs) per pole. This means that it is able to effectively dissipate the energy caused by sudden voltage spikes, protecting connected devices from damage. An optical indicator of operation allows for quick identification of a situation where the surge protector has reacted and requires replacement of the insert. Replaceable inserts facilitate servicing and minimize repair costs.

Versatility and compliance with standards

The SPBT12-280/1 surge protector is compatible with various network systems, including TN, TN-S and other network systems. It provides a protection level of up to 1.5 kV (L-PE), making it a suitable protection for a wide range of receivers. The maximum wire cross-section of 25 mm² (solid/stranded) and 35 mm² (flexible) allows connection of wires of different thicknesses, adapting to the specifics of the installation. The energy capacity of the device is 39.1 kJ/Ohm, which guarantees effective surge suppression. Additionally, the permissible maximum series fuse is 160A.

• Effective protection: Protects against atmospheric and switching surges.
• Compact size: Occupies only 1 module on the DIN rail, saving space in the switchgear cabinet.
• Replaceable inserts: Facilitate servicing and reduce operating costs.
• Versatility: Compatible with various network systems (TN, TN-S).
• Optical indicator: Quick identification of the device status after operation.
• Durability: Impulse current of 12.5 kA ensures reliable protection even with strong surges.
• Application: Ideal for both home and industrial installations.