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Industrial Grade 3-Stage Lightning Surge Protector for RS-422 & RS-485 Lines


LP,RS422/485 SCR NEMA ENCL
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LP,RS422/485 SCR NEMA ENCL LP,RS422/485 SCR NEMA ENCL LP,RS422/485 SCR NEMA ENCL LP,RS422/485 SCR NEMA ENCL LP,RS422/485 SCR NEMA ENCL
L-com Item # ALW-D2-05

List Price$69.95
Your Price 1-9$69.95
10-24$64.35
25-99$58.76
100 +Call Us
Availability: Call Us
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This high performance 3-stage lightning protector provides superior protection of differential or balanced digital or analog lines from transients and surges. The units will protect two pairs of differential data or analog signal/control lines.

The first stage is comprised of a differential gas discharge tube. Stage two is a pair of current limiting series resistors and the final stage is a low capacitance diode array. The use of three terminal differential gas discharge tubes provides superior common and differential mode protection against conducted transients versus the use of lower cost two terminal tubes. The second stage series resistance limits the power dissipation of the fast diode clamp array in the third stage. This allows time for the slower but higher power gas tubes to flash over. The diode array clamps the leading edge of fast transients to safe levels until the high power gas tubes turn on. This eliminates the damaging leading edge spike that single stage gas tube protectors let leak through. The diode array's low capacitance assures that the suppressor will not degrade the high-speed signals. The 3-stage design can handle higher-level transients than a protector that uses only diodes.

This protector features an industrial grade die cast aluminum enclosure with gasketed cover and concealed mounting holes. It includes an aluminum mounting kit and hardware. PG16 cable glands are provided on the enclosure as well as an external ground clamp provided a tie point for earth ground.

Application Note:
Not for use with T1 line with Ring or DC Power.

For mounting to masts up to 2 inches in diameter, the HGX-PMT24 mast mounting kit is available (sold separately).

For additional information and complete specification, see data sheet below.



L-com Item #ALW-D2-05
ManufacturerL-com
UPC # (More)822335099753
RoHS StatusRoHS Compliant RoHS Compliant(More)
Power Rating (1=Low-Pwr to 5=Hi-Pwr)Power Rating 5 (1=Low-Pwr to 5=Hi-Pwr)
Features:
  • Three-Stage Protection
  • Superior to diode or TVS only based designs
  • Screw Terminal Blocks
  • Industrial grade weatherproof die cast aluminum enclosure with mounting brackets
Applications:
  • RS-422/RS-485 communications
  • RTD applications
  • Industrial and building automation
  • AISG control lines
  • T1/E1/J1 lines (see above note)
Accessories for the Industrial Grade 3-Stage Lightning Surge Protector for RS-422 & RS-485 Lines

Mast Mounting Kit for ALW/ALS Series Weatherproof Lightning Protectors
Mast Mounting Kit for ALW/ALS Series Weatherproof Lightning Protectors
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