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They provide common-mode or common and differential mode.
This SPD is based on high energy varistor equipped with thermal disconnector and failure indicator, to comply with standards.
The DS40 surge protectors are designed to be used in a multipolar configuration to protect single-phase, 3-phase or 3-phase+Neutral AC networks.
They are sometimes associated with dedicated N/PE surge protector based on gas tube technology.
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Reviews
- A
Andrew Thompson
May 26, 2025
CITEL Surge Protection Device DS44S-320Rapid response time. I had a technical query before my purchase, and they were very supportive.HelpfulUnhelpful - G
Guest
Jan 21, 2025
CITEL Surge Protection Device DS44S-320It was readily available.HelpfulUnhelpful - F
Frank DeCarlo
Nov 07, 2024
CITEL Surge Protection Device DS44S-320We're so glad we found you.HelpfulUnhelpful - J
Johnny Johnson
Apr 14, 2024
CITEL Surge Protection Device DS44S-320NADAHelpfulUnhelpful - A
Anonymous user
Nov 25, 2022
CITEL Surge Protection Device DS44S-320All was ok! No problems whatsoever.HelpfulUnhelpful
CITEL Surge Protection Device DS44S-320
✔ In Stock (Can ship in 5-7 days)

Online Support 24/7
12 Months Warranty for New Products
30 Days Money Back Guarantee
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