Surge arrester T1+T2 12.5 kA TT/TNS B1414

The T1+T2 12.5 kA surge protective device is designed to protect electrical installations against lightning impulses and voltage surges. It is suitable for use in a building's main switchboard or distribution board, particularly in situations where the installation requires primary protection against high impulse currents.

The device is DIN-rail mountable, features pluggable modules, and is equipped with a green/red status indicator, which helps to quickly assess the operating state of the surge protective device.

Technical specifications

Manufacturer: BRITEC
Model: BR-12.5M-275 4P
Product code: B1414
Product type: surge protective device / SPD
Protection class: T1+T2 / Class I+II
Network system: TT / TN-S
Number of poles: 4P
Nominal voltage / Uc: 275 V AC
Lightning impulse current Iimp: 12.5 kA
Nominal discharge current In: 20 kA
Maximum discharge current Imax: 50 kA
Protection level Up: ? 1.3 kV
Protection level at 5 kA: ? 1.0 kV
Response time: ? 25 ns
Maximum backup fuse: 160 A gG
Installation: 35 mm DIN-rail
Connecting cable cross-section: 4–35 mm²
Protection degree: IP20
Housing material: thermoplastic UL94-V0
Operating temperature: –40 °C to +80 °C
Status indicator: green / red
Standard: IEC 61643-11 / EN 61643-11
Certificate: CE

Suitable for, for example

Main switchboards and distribution boards
Surge protection for private homes, commercial buildings, and industrial installations
Installations requiring T1+T2 protection level
Protection of the building's incoming power supply against lightning and switching surges

Recommended additional items: distribution boards, DIN-rail terminals, circuit breakers, earthing and connection accessories.

Not sure if this surge protective device is suitable for your installation? Write or call us — we will help you choose the right solution.