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Old 09-23-2012, 11:49 AM   #1
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Whole house surge protector - questions


I am looking to install whole house surge protectors, I have few questions, I would greatly appreciate any comments/suggestions:

I have two 200Amp service panels, Cutler Hammer CH series 42 circuits. Here are few questions:

(1) which surge protector would you recommend? Leviton 51120-1 or Cutler Hammer CHSPT2ULTRA single pole?

(2) Since I have two panels, do I need to install one in each panel?

(3) I understand that surge protector should be mounted as close to the service leads as possible.

Panel 1: I have 30amp breaker in position 1 and 3.
I have two 20amp breakers in position 2 and 4.

I guess I can connect surge protector to breakers 2/4, correct?


Panel 2: I have 60amp breaker in position 1 and 3. (wired for future, not used)
I have 15amp breakers in position 2 and 4.

I have 20amp breakers in position 5 and 7.

Should I move breakers 5 and 7 to position 1 and 3 and hook up surge protector to that or 5 and 7 would be fine?

Thanks in advance.

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Old 09-23-2012, 08:33 PM   #2
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Whole house surge protector - questions


I have the same panel - CH 42 space 200A

I personally prefer the CH surge protector that takes the place of a 2 pole CB (see below) but I understand the place for panel mounted ones that can also protect phone, coax, etc. Either model is fine.

Each panel needs its own.

As close as possible to service leads is best. 2/4 is fine for panel 1. if its easier to change panel 2 to allow it in position 1/3 that is best but dont obsess about it.

what matters most is 1> absolutely minimizing length of wires to/from SP and 2> good grounding system

CUTLER HAMMER CH-CHSA CH TYPE SURGE BREAKER

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  • Item #: CHSA
  • Manufacturer: Cutler Hammer
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Surge arrester module for plug-on load center panel mounting is simple to install. Designed to fit Cutler-Hammer type CH Load Centers requiring two 3/4 inch adjacent pole spaces. Installation is completed by connecting the single white wire to the panel's neutral bar. This one device will protect your entire downstream electrical system although surge protectors are still recommended at sensitive appliances, electronic equipment and computers. Designed for use on single-phase, three-wire 120/240 Vac electrical services. Uses metal oxide varistor (MOV) design to arrest voltage surges with a low resistance path line-to-line, or line-to-neutral, or line-to-ground while providing a high resistance path to the 50/60 Hz power source. The MOV responds faster and has a lower clamping voltage than comparable gapped arresters. Individual non-replaceable internal fuse links protect each MOV and open in the event of a surge that damages an MOV. The LED on the face of the unit indicates operational status of the arrester. If the light is on the unit is fully operational. When the LED indicator goes off, the unit should be replaced. Suitable for use in service entrance locations and meets the requirements of NEC Article 280. For use on single-phase 120/240 Vacsystems. This easily plugs into asingle-phase Type CH loadcenter andoccupies two 3/4-inch (19.1 mm) polespaces similar to a 2-pole Type CHbreaker. When plugged into the first two stabs at the top of the loadcenter just below the main breaker or mainlug, it provides surge protection for the entire loadcenter. If internal components are damaged, the CHSALED visual indicators will signal the need for replacement. This device is suitable for service entry locations installed in accordance with NECArticle 280. The CHSA is ideal for protecting sensitive appliances and electronics


Last edited by kevinp22; 09-23-2012 at 08:35 PM.
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Old 09-24-2012, 09:52 AM   #3
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Whole house surge protector - questions


Thanks for the info. CHSA is definitely easiest to install but I am looking for little more heavy duty protection, so I was considering CHSPT2ULTA. Take a look at page 31 of this PDF.

http://www.homesphere.com/News/Press...ne_24_2011.pdf

It shows CHSPT2ULTA installed on bottom breakers of the panel. I thought they recommend installing this at top of the panel, closest to the service leads. What am I missing here?

Thanks
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