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Type 1 surge arrester STC 642
telecommunicationslow-voltageplug-in

type 1 surge arrester
type 1 surge arrester
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Characteristics

Type
type 1
Applications
telecommunications
Other characteristics
low-voltage, plug-in
Current

10,000 A

Description

Two-Pair (Four-Wire) Protection for Low-Voltage Data Lines. The STC-642 Series offers two-pair (four-wire) surge protection modules featuring three-stage hybrid technology. Gas tubes and silicon avalanche components protect equipment from overvoltage transients, while sneak currents are mitigated with resettable fuses (PTCs). These fuses are designed to increase resistance by several orders of magnitude when an over-current exceeds safe levels, automatically resuming normal operation when the over-current is removed. This self-restore capability significantly increases performance and survivability, with no need to open the cabinet to reset a circuit breaker or replace a fuse. The STC-642 card edge module is gold plated, double sided and is designed to mate with the gold plated female base connector (STC-PCB1B, sold separately). When snapped together, the data circuits pass thru the protector in a serial fashion from the four field side terminals to the four electronics side terminals. Terminals 1 or 10 of the base connector must be attached to building approved ground.

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*Prices are pre-tax. They exclude delivery charges and customs duties and do not include additional charges for installation or activation options. Prices are indicative only and may vary by country, with changes to the cost of raw materials and exchange rates.