Novaris SL4/SLC signal line surge protectors

A high-energy pluggable device, the Novaris SL4 and SLC surge protection units offer 20 kA protection, making them suitable for PLCs, fire and security systems, telecommunications, telemetry, railway signalling and SCADA systems.

The SL4 is built with two balanced pair signal circuits while the SLC has a built-in 10 A power supply circuit rated at 24 VDC in the one device.

Protection is possible for up to 150 VDC, depending on the model chosen, including support for RS485 or RS422 serial communications for sensitive devices or where the location is susceptible to lightning strikes. In the event of excessive surge current, the signal line protectors are equipped with protection fuses and a fail-safe design with a red indicator to alert for replacement.

The pluggable design allows for easy removal and replacement, with gold-plated connectors to ensure low resistance between surge protector modules and the DIN rail base. Measuring 12 mm wide, the 20 kA surge protector is easy to install.