APC Modular Remote Power Panel 277 kVA and APC Modular Rack Distribution Panel 138kVA

[BillP]

Hi Folks,

Can anybody give me "Application Notes" or any 'learning material' so that I can understand the working mechanism of above captioned subject mentioned items. Like How they work? Why we need them.... etc....

thanks a lot.

[voidstar_apc]

Hi Warifir,

I helped develop the RDP and RPP but I think it's best to talk to APC Sales Support if you want to install them. They have far more knowledge of installation concerns and can help determine if it's the right fit for you.

RDPs installed in racks (takes up 5U) while RPPs are themselves a half-width rack.

An RPP or RDP takes the place of a distribution board. Usually the input of the UPS is hard wired and the output is connected to the RDP/RPP. A modular breaker plugs into the RDP/RPP and the cable part of it goes to the load. The end of the modular breaker cable has a receptacle. Either the load equipment is plugged directly into this receptacle, or a PDU is plugged in (this is like a large surge strip) and the equipment is plugged into the PDU.

That setup assumes a large UPS powering multiple loads. We sell large UPSes with an attached RDP or RPP, such as the Symmetra PX All-in-one. In the picture for that product, you can see the modular breakers in an RDP at the very top of the rack.

Alternatively you may have many small UPSes powering your loads individually. In this case, you'd hard wire the input of an RDP or RPP, and then then plug the UPS inputs into the receptacle at the cable end of the modular breaker.

I hope that helps.

[BillP]

Hi Folks,

Can anybody give me "Application Notes" or any 'learning material' so that I can understand the working mechanism of above captioned subject mentioned items. Like How they work? Why we need them.... etc....

thanks a lot.

[BillP]

Do these help?

https://www.apc.com/prod_docs/results.cfm?DocType=Brochure&Query_Type=3&Value=432

[BillP]

Thank u Angela for being so helpful, as always.

Your required link is valuable, but if you ever find anything in which "Working" details has mentioned then please let us know.

Thanks a lot for your prompt assistance. tc

[voidstar_apc · Accepted solution]

What would you like to know about them?

Take a look at this video: Breaker Demo - YouTube

The basic idea is when you install a new load (for example, a new rack with servers), ordinarily you need to hire an electrician to install a new electrical circuit to power the load. With the RPP (Remote Power Panel) or RDP (Rack Distribution Panel), you can buy a factory-produced "modular breaker" which is a circuit breaker attached to a cable (called a whip). The cable goes to the load and the circuit breaker hot-plugs into the touch-safe RPP or RDP. In that way you can provide a new electrical circuit without hiring an electrician. There are also subfeed hookups for electricians to hard-wire a circuit.

Additionally, the RPP and RDP monitors the electrical power used by every phase of every attached circuit. So if you like power monitoring, that can be useful.

The flip side is that modular breakers only come in specific configurations (see here). Some customers with esoteric needs cut the ends off the cable/whip and hardwire it themselves anyways, which isn't much benefit over conventional PDU panelboards.