Check the listing for details. Telephone surge protector TSP-101-DIN, in line arrestor installation, LED light. Condition: New. Listed at 15.60 USD. TSP-101-DIN is an in-line RJ11 telephone line surge protector. It installs simply between the wall plug and equipment behind, having 2 opposite gender RJ11 connectors. It protects any telephone line devices like fax machines, answering machines, modems, dial-up alarm systems, etc. The TSP-101-DIN is TS-35 DIN rail mountable and has a grounding/earthing screw pin in the back. The TSP-101-DIN includes a short (5") 2 wire RJ-11 to RJ-11 phone line cable in the box. Features of TSP-101-DIN telephone line surge protector Controls transient over voltages to protect sensitive electronic equipment Meets IEC 61643-21; GB 18802.21; YD/T 1542, CE (LVD, EMC); Rohs standards and certifications LED indicator for off-hook and ringing on telephone line Easy installation: one RJ-11 male connector and one RJ-11 female connector Technical specifications - Nominal voltage: Un=110V - Rated voltage (max. continuous voltage): Ul= 170V-/ 120V~ - Nominal current: I=0.5A - Lightning impulse current (10/350): Iimp=5kA - Nominal discharge current (8/20): In=5kA per line, 10kA total - Voltage protection level at In: Up