tii 356M3
Heavy Duty Station Protector
Three-Electrode Heavy Duty Balanced Gas Tube
Fully Encapsulated Assembly
Narrow Breakdown Voltage Range
Over-Current PTC Transient Surge Protection
Reduces Maintenance Cost
Listed to UL 497
The tii 356M3 module consists of a tii Balanced Heavy Duty narrow breakdown voltage range three-electrode gas tube surge arrester, failshort device, backup airgaps and a set of over-current protection elements.
KEY PRODUCT BENEFITS
The eXXntire assembly is completely encapsulated to prevent moisture entry and environmental contamination.
The completely self-contained unit is provided withXX a corrosion-resistant ground strap and two threaded binding posts for service wire and two wires with spade lugs for station wire connection.
Totel Failsafe®XX protection is provided in three ways:
1) The gas tube operates on overvoltage surges and shunts the transients to the ground.
2) The overcurrent protection elements limit the currents that may otherwise escape
to customer premise equipment.
3) The backup airgap provides surge protection in the unlikely event the gas tube
arrester should vent.
The XXtii 356M3 may be employed in a variety of single and multiple pair protector assemblies and NIDs. When mounted in a tii station protector or network interface device (NID), the assembly is UL listed in the Signal Circuit Protector category.
The gas tube recovers after a surge, and remains ready for continued operation XXnormally for many years.
The over-current protection elements consist of PTC (Positive Temperature XXCoefficient) resistors and inductors.
While inductors delay fast-rising surges from reaching the secondary protectors, XXthe PTCs prevent damage from induced currents. This combination of total overvoltage and over-current protection reduces maintenance costs over the life of an installation.
INDUSTRY STANDARDS
Surge handling and life capabilities exceed the objectives of Telcordia GenericXX Requirement GR-1361 CORE.
Listed to UL 497.