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- Joined
- Oct 12, 2007
- Messages
- 22,552
Somewhere in the mix of posts I mentioned load shedding, but did not have a parts number.
Years ago I wrote an article for fellow bus nuts about the same subject, but was unable to find it in their archives,So I adked ,
could they be --> Potter-Brumfeld PRD11dy0-110
http://cgi.ebay.com/POTTER-BRUMFIELD-PRD-11DY0-110-NSFP-PRD11DY0110-/230550762461
http://www.onlinecomponents.com/pb-tyco_prd-11dy0-110.html?p=12111005
I looked at the spec sheet and I can't find out if they can be set to NC (normally closed) to open when a signal is sent.
This is required for Load Shedding to work.
Current cap is fine , as is the price.
These are DPDP - so there are 2 sets of BOTH N/O and N/C contacts connections
They can be wired either way without fliping contacts.
Thanks Pete , that will work!
For those that have not heard of Load Shedding , it is an easy concept.
When in a site that has very limited power power on board AC users are staged.
The HW heater would be in all the time , BUT, when the fridge needs power ,a wire from the fridge motor activates the relay , and the HW heater goes off.
When the fridge finishes , the power to its motor stops , and the relay allow the HW heater to go back on.
It works seamlessly after you set it up.
The possibilities are almost endless.
I have not used these specific units but they should work, next time you are at one of those fine* fancy places with a single 15A plug.
Years ago I wrote an article for fellow bus nuts about the same subject, but was unable to find it in their archives,So I adked ,
could they be --> Potter-Brumfeld PRD11dy0-110
http://cgi.ebay.com/POTTER-BRUMFIELD-PRD-11DY0-110-NSFP-PRD11DY0110-/230550762461
http://www.onlinecomponents.com/pb-tyco_prd-11dy0-110.html?p=12111005
I looked at the spec sheet and I can't find out if they can be set to NC (normally closed) to open when a signal is sent.
This is required for Load Shedding to work.
Current cap is fine , as is the price.
These are DPDP - so there are 2 sets of BOTH N/O and N/C contacts connections
They can be wired either way without fliping contacts.
Thanks Pete , that will work!
For those that have not heard of Load Shedding , it is an easy concept.
When in a site that has very limited power power on board AC users are staged.
The HW heater would be in all the time , BUT, when the fridge needs power ,a wire from the fridge motor activates the relay , and the HW heater goes off.
When the fridge finishes , the power to its motor stops , and the relay allow the HW heater to go back on.
It works seamlessly after you set it up.
The possibilities are almost endless.
I have not used these specific units but they should work, next time you are at one of those fine* fancy places with a single 15A plug.
