Modular surge protector ETITEC ML T123 300/12,5 4+0 RC 002440668

Surge protection for electrical installations

The ETITEC ML T123 300/12.5 4+0 RC modular surge limiter is an advanced device designed to protect electrical installations from the effects of surges. It provides protection against both direct and indirect lightning strikes, as well as switching surges. Mounted on a TH-35 mm DIN rail, it is a key element of the overvoltage protection system in residential, commercial and industrial buildings.

### Construction and application

This limiter combines the features of type 1, 2 and 3 limiters (classification I, II, III according to EN/IEC standard), making it a versatile solution. The 4+0 construction means it has four poles (L1, L2, L3, N) and no N-PE pole with additional spark gap protection. This effectively suppresses surges in TN and TN-S networks. The impulse current of 12.5 kA and the specific energy of 39 kJ/Ohm guarantee effective protection even with strong voltage pulses. The built-in optical indicator signals the device status - red indicates damage, and green indicates correct operation.

### Key features and benefits

* **Versatility:** Meets the requirements of a type 1, 2 and 3 limiter, providing comprehensive protection.

• High efficiency: Impulse current of 12.5 kA and specific energy of 39 kJ/Ohm effectively dissipate surge energy.

• Status indication: Optical indicator facilitates quick identification of a damaged module.

• Safety: Has internal thermal protection that disconnects the device in case of overheating.

• Easy installation: Mounting on a TH-35 mm DIN rail is quick and intuitive thanks to the locking clip.

• Connection flexibility: Dual grounding terminal allows connection of an additional grounding wire for increased safety.

• Large wire cross-section: Supports wires with a maximum cross-section of 35 mm² (solid) and 25 mm² (stranded).

• Remote signaling (RC): Removable contacts for remote signaling of failures allow integration with the installation monitoring system (RC version only).

The ETITEC ML T123 limiter is a reliable solution for installers looking for effective surge protection and for end-users who value the safety of their electrical devices. The use of high-quality varistors guarantees long-lasting and stable operation of the device in various operating conditions.