3999bSB5B.14 New Tii (Tii Technologies Inc.) Totel Failsafe® TFS Station Protector Modules for Telephone Lines, Gas Tube Surge Protectors with Failshort and Airgap Backup Protection for Telecom Equipment, etc., Part Number 355M. Each bid quantity is for One (1) Protector Module. You may bid / buy any number, up to the total quantity available above. These were purchased at an electronics supplier liquidation earlier this year. We packaged them in heavy Ziplok bags for resale. New old stock, with an occasional fingerprint on the brass terminals. Listed to UL 497 in the Signal Circuit Protector category when mounted in a Tii Station Protector or Network Interface Device (NID). Comes with one (1) solid brass nut and one (1) solid brass flat washer on each of the threaded brass terminals. According to the calipers: Overall length: 2.250″ / 57.15 MM Width (excluding flat brass terminal): .750″ / 19.06 MM Width (including flat brass terminal): 1.194″ / 30.33 MM Height (excluding threaded terminals): .849″ / 21.57 MM Height (including threaded terminals): 1.436″ / 36.48 MM Threads: #10-32 x .519″ / 13.20 MM (diameter – threads per inch x grip length) According to the manufacturer: 355M Maximum Duty Totel Failsafe® TFS® Station Protector Module Tii’s Totel Failsafe® Station Protector Modules are the basic components of Tii Station Protectors, and the 355M Maximum Duty Protector provides years of reliable protection against power surges and the damage they can cause. Three-Electrode Maximum Duty Gas Tube Fully Encapsulated Assembly Provides Years of Superior Performance Reduced Maintenance Cost Listed to UL 497 KEY PRODUCT BENEFITS — 355M module is entirely self-contained and consists of a Maximum Duty three-electrode gas tube surge arrester, a failshort mechanism, and a backup airgap — Entire assembly is completely encapsulated to prevent moisture entry and environmental contamination — Comes with a corrosion-resistant ground strap and two threaded binding posts for service wire and station wire connection Surge protection is provided in three ways: 1. The gas tube operates on over-voltage surges and shunts the transient to ground 2. The failshort device operates under power cross conditions to permanently ground the line 3. The backup airgap provides surge protection in the unlikely event should the gas tube arrester vent — 355M module may be employed in a variety of single and multiple pair protector and network interface device assemblies — Gas tube recovers after a surge and remains ready for continued normal operation for many years, reducing maintenance cost over the life of an installation INDUSTRY STANDARDS — Listed to UL 497 in the Signal Circuit Protector category when mounted in a Tii Station Protector or Network Interface Device (NID) — 355M module is accepted as Maximum Duty by RUS when tested to the requirements of PE-80 specifications DC Breakdown Voltage 300 – 500V DC DC Holdover: 150V DC @200 mA <150mS Maximum Single Impulse Discharge Current, 8/20 waveform 40kA, 20kA/Side Simultaneously Service Life: 1000A, 10/1000 Waveshape at 1 min. intervals each 1000 Surges Minimum Polarity 500A On Each Side to Ground Simultaneously AC Discharge Current 11 cycles, 60Hz 130A rms, 65A On Each Side to Ground Simultaneously Capacitance: Line to Ground Test Method IEEE 465.1, RUS PE-80 <30pF Impulse Breakdown Voltage @100V/μsec 750V Maximum, 500V Typical Insulation Resistance @ 100V dc 1000 Megohms Minimum Airgap Breakdown Voltage Meets Requirements of UL 497 355M* Maximum Duty Totel Failsafe® TFS® Station Protector Module *M designates a protector module meeting the RUS, PEG and other industry requirements. Patent No. 4,212,047