Surge Protector mounts on DIN rail.
Press Release Summary:

Original Press Release:
Heavy Duty AC Power Protection
Citel has unveiled a new heavy-duty AC power surge protector designed for Wireless Base Stations, Cellular sites and Control/Instrumentation equipment.
Citel DS 150E protects one phase with a patented technology combining three layers of MOVs and thermal fuses. It is available for 110 -120V AC and 220 - 250V AC network.
Citel DS 150E has a power dissipation capability of 140kA. It is UL 1449 2nd edition listed and CSA approved.
It comes with both visual indicators and remote signaling. Small and compact it is DIN Rail mountable.