Surge arrester T1, T2 (B, C) - leakage current free ETITEC SM T12 300/12,5 1+1 002440548

Electrical installation protection with ETITEC SM T12 surge limiters

ETITEC SM T12 surge limiter is a reliable device that effectively protects electrical installations from the effects of lightning strikes and overvoltages. Designed for mounting on a TH-35 mm DIN rail, it provides comprehensive protection in TN-S, TT and TN network systems. Protection class Type 1+2 guarantees high efficiency in the event of both direct and indirect lightning strikes.

Construction and operating parameters

The SM T12 limiter is characterized by a compact design – it occupies only 2 modules on the rail. It is made without leakage current, which increases safety. The surge current at 12.5 kA (10/350 µs) and specific energy of 39 kJ/Ω demonstrate its high efficiency in absorbing surge energy. The device has an optical indicator of operation, which informs about the need for replacement after a surge occurs. The maximum cross-section of conductors connected to the limiter is 35 mm² for single- and multi-wire conductors and 25 mm² for flexible conductors. The rated AC voltage is 240 V, and the highest continuous operating voltage is 300 V. The L-N and N-PE protection level is 1.5 kV.

Application and benefits

The ETITEC SM T12 limiter is used in protecting various electrical installations – from domestic to industrial. Its versatility makes it an ideal solution for both installers and end-users looking for reliable protection against the effects of overvoltages. By using this limiter, you can minimize the risk of damage to connected electronic devices and ensure uninterrupted power supply. ETIM class is Surge protection device Type 1+2 (class B+C).