Measurement Bus Surge Protector, SUG-MBUS

SUG-MBUS is designed to protect M-BUS networks from surges caused by lightning strikes and potential differences. The M-BUS bus is widely used for remote reading of energy meters, water meters, gas meters, and others. Due to long distances, it is particularly susceptible to electromagnetic impulses induced during lightning strikes.

Modern solutions in the form of MOSFET fuses limit the flow of high surge currents through the limiter, resulting in increased durability and significant reduction of the surge voltage reaching the protected device. An additional advantage of this solution is the limitation of equalizing currents, which can protect M-BUS interfaces from potential jumps that lead to current overload.

The structure consists of voltage clipping and limiting stages, as well as a current limiter above 300mA. The product has very low attenuation, making it possible to transmit data at very high speeds.

High-quality window clamps with high current load limit the risk of damage during high surge impulses and momentary current overloads.

The product is designed for installation on the border between LPZ0 and LPZ1 zones or higher.

Simplified internal diagram.

To ensure proper surge protection, it is recommended to use protectors at both ends of the transmission line and to properly ground them.

Proper use of the product for M-Bus network surge protection.

Short technical specification