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APC A/V S20 Question/Concern

APC UPS for Home and Office Forum

Schneider Electric support forum for our APC offers including Home Office UPS, Surge Protectors, UTS, software and services and associated products designed to share knowledge, installation, and configuration.

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Blk02_apc
Crewman
Crewman
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APC A/V S20 Question/Concern

This was originally posted on APC forums on 5/15/2011


I have been running my A/V equipment with a APC S20 for about 1.5 years now and everything is still workin fine, but I had a few questions. I have been reading a lot about surge protectors and I am wondering how the S20 compares to offerings from Zero Surge, Brickwall, and SurgeX. There is no surge protection data listed on the APC website S20 technical page. In addition, let-through voltage (<50V) is the only surge protection data listed in the manual for the APC S20.

1) What type of surge protection does the S20 provide? MOV or Inductor/Capacitor/Resistor?
2) If the S20 uses MOV's what is the reason other than being cheaper than the Inductor/Capacitor/Resistor type?
3) Also, if the S20 uses MOV's what is the Joule rating?
4) If the S20 uses MOV's how do I tell when the MOV's are no longer providing full protection?
5) In addition, what is the S20's endurance rating for the 6,000 volt/3,000 amp surge pulse? (UL1449 3rd Edition Standard Test).
The Federal CID defined three grades of surge suppressors based on endurance testing at several surge test levels.
- Grade A is for 1,000 surge endurance with 6,000 volts, 3,000 amperes applied.
- Grade B is for 1,000 surges with 4,000 volts, 2,000 amperes.
- Grade C is for 1,000 surges with 2,000 volts, 1,000 amperes applied.
6) Also, what mode does the S20 operate in Mode 1 or Mode 2? "Mode 1 is the ground protection mode, since it doesn't surge the ground wire. Mode 2 surges the ground wire putting interconnected products at risk. Products claiming "all three modes of protection" are US Mode 2 products, since they divert surges to the safety ground wire. Avoid these."

From everything I have read the Inductor/Capacitor/Resistor type seems to be superior to MOV's. Can anyone answer these questions? I spent a lot of money on the S20 and I want to make sure it was well spent.

Thanks,
Sean

Message was edited by: Blk02

Message was edited by: Blk02

Message was edited by: Blk02


Accepted Solutions
Blk02_apc
Crewman
Crewman
0 Likes
0
125

Re: APC A/V S20 Question/Concern

This was originally posted on APC forums on 5/15/2011


5) In addition, what is the S20's endurance rating for the 6,000 volt/3,000 amp surge pulse? (UL1449 3rd Edition Standard Test).
The Federal CID defined three grades of surge suppressors based on endurance testing at several surge test levels.
Grade A is for 1,000 surge endurance with 6,000 volts, 3,000 amperes applied.
Grade B is for 1,000 surges with 4,000 volts, 2,000 amperes.
Grade C is for 1,000 surges with 2,000 volts, 1,000 amperes applied.

See Answer In Context

2 Replies 2
Blk02_apc
Crewman
Crewman
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0
125

Re: APC A/V S20 Question/Concern

This was originally posted on APC forums on 7/4/2011


Anyone?? I assume that I am right since no one has responded. The S20BLK is inferior to series mode protection offered by SurgeX, Brickwall, Torus, & ZeroSurge.

Blk02_apc
Crewman
Crewman
0 Likes
0
126

Re: APC A/V S20 Question/Concern

This was originally posted on APC forums on 5/15/2011


5) In addition, what is the S20's endurance rating for the 6,000 volt/3,000 amp surge pulse? (UL1449 3rd Edition Standard Test).
The Federal CID defined three grades of surge suppressors based on endurance testing at several surge test levels.
Grade A is for 1,000 surge endurance with 6,000 volts, 3,000 amperes applied.
Grade B is for 1,000 surges with 4,000 volts, 2,000 amperes.
Grade C is for 1,000 surges with 2,000 volts, 1,000 amperes applied.