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.
STC-642 Series Data/Signal Line Surge Protective Devices Catalog Pages
Applications
- Two-pair data/communication wiring
- Indoor communication loop circuits that have been isolated from the Public Switch Telephone Network
- Industrial control systems
- Factory automation
- Lightning protection for low voltage data/signal lines
- Three-stage protection
- Sneak/fault current protection
- Resettable solid-state fuses (PTCs)
- Low capacitance option for high speed data
- Plug-in module (requires STC-PCB1B base)
- Fast response time (<1 Nanosecond)
- Optional DIN rail mounting clip
- UL 497B Listed
- 5 year warranty
