RackmountPDUpro.com
sitemap / Home / View cart
Call us (Toll Free)
1-888-483-2418
Hrs. 6am to 6pm PST
 Live-chat
HomeProduct SupportCompanyOrder InfoContact us
Search  
Tell A Friend
Bookmark This Page
Enter your Email Address

PDU Technology
Home » Resources » PDU Technology
 

Questions & Answers
1. What is Power Distribution Unit (PDU)?
 2.What is Heavy Duty Plugs and Receptacles?
 3. What is NEMA Plugs and Receptacles?

1. What is Power Distribution Unit (PDU)?
A Power Distribution Unit (Commonly abbreviated to PDU) is a device that distributes electric power by taking high voltage and amperage and reducing it to more common and useful levels, for example from 220V 30A single phase to multiple 110V 15A or 110V 20A plugs. They're used in computer data centers, touring bands, DJs, and other electrically intensive applications. Some are seen with features like remote monitoring, control down to plug level etc.

A 240 volt circuit (120 volts x2 plus neutral and ground) has two legs at 120 volts. A distro switches and provides circuit protection for the taps off of the phases/legs. A PDU allows for a solidly bonded neutral, and a safe grounding system.


Back to top

2. What is Heavy Non-Locking Plugs and Receptacles?

straight blades
configurations		 General-purpose non-locking plugs and receptacles

15 amperes

 20 amperes 30 amperes 50 amperes
receptacle plug receptacle plug receptacle plug receptacle plug
125V 1
125V 5
250V 6
277V 7
125V/250V 10
3Ø 250V 11
125V/250V 14


Back to top

3. What is NEMA Locking plugs and Receptacles?

locking type
configurations		 NEMA configurations for locking plugs and receptacles

15 amperes

 20 amperes 30 amperes 50 amperes
receptacle plug receptacle plug receptacle plug receptacle plug
125V L5
250V L6
125V/250V L14
250V L15

¡@

standard /configuration
( rating voltage )

pin configuration

 description:
NEMA 1-15P
( 125V ~ )		 straight blade configuration
class II
NEMA 1-15P
( 125V ~ )

straight blade configuration
class II
NEMA 1-15P
polarized
( 125V ~ )		 straight blade configuration
polarized
NEMA 5-15P
( 125V ~ )		 straight blade configuration
2 pole
3 wire grounding
NEMA 5-15P
( 125V ~ )
straight blade configuration
2 pole
3 wire grounding
right angle
NEMA 5-15P
( 125V ~ )		 straight blade configuration
2 pole
3 wire grounding
NEMA 5-15P
( 125V ~ )		 straight blade configuration
2 pole
3 wire grounding
right angle
NEMA L5-15P
( 125V ~ )		 locking configuration
2 pole
3 wire grounding
NEMA 6-15P
( 250V ~ )		 straight blade configuration
2 pole
3 wire grounding

NEMA 6-15P
( 250V ~ )

straight blade configuration
2 pole
3 wire grounding
right angle
NEMA L6-15P
( 250V ~ )		 NEMA locking configuration
2 pole
3 wire grounding
NEMA 1-15R
( 125V ~ )		 straight blade configuration
class II
NEMA 5-15R
( 125V ~ )		 straight blade configuration
2 pole
3 wire grounding
NEMA L5-15R
( 125V ~ )		 locking configuration
2 pole
3 wire grounding
NEMA 6-15R
( 250V ~ )		 straight blade configuration
2 pole
3 wire grounding
NEMA L6-15R
( 250V ~ )		 locking configuration
2 pole
3 wire grounding

NEMA 5-20P
( 125V ~ )		 straight blade configuration
2 pole
3 wire grounding
NEMA 5-20P
( 125V ~ )		 straight blade configuration
2 pole
3 wire grounding
NEMA L5-20P
( 125V ~ )		 NEMA locking configuration
2 pole
3 wire grounding
NEMA 6-20P
( 250V ~ )		 straight blade configuration
2 pole
3 wire grounding
NEMA 6-20P
( 250V ~ )		 straight blade configuration
2 pole
3 wire grounding
NEMA L6-20P
( 250V ~ )		 ocking configuration
2 pole
3 wire grounding
NEMA L14-20P
( 125/250V ~ )		 locking configuration
3 pole
4 wire grounding
NEMA L15-20P
( 250V ~ )		 locking configuration
3 pole
4 wire grounding
NEMA 5-20R
( 125V ~ )		 straight blade configuration
2 pole
3 wire grounding
NEMA L5-20R
( 125V ~ )		 locking configuration
2 pole
3 wire grounding

NEMA 5-30P
( 125V ~ )		 straight blade configuration
2 pole
3 wire grounding
NEMA L5-30P
( 125V ~ )		 NEMA locking configuration
2 pole
3 wire grounding
NEMA 6-30P
( 250V ~ )		 straight blade configuration
2 pole
3 wire grounding
NEMA L6-30P
( 250V ~ )
NEMA locking configuration
2 pole
3 wire grounding
NEMA 10-30P straight blade configuration
3 pole
NEMA 11-30P
( 250V ~ )		 straight blade configuration
3 pole
NEMA 14-30P
( 125/250V ~ )		 straight blade configuration
3 pole
4 wire grounding
NEMA L14-30P
( 125/250V ~ )		 locking configuration
3 pole
4 wire grounding
NEMA L15-30P
( 250V ~ )		 locking configuration
3 pole
4 wire grounding
NEMA L5-30R
( 125V ~ )		 locking configuration
2 pole
3 wire grounding
NEMA L6-30R
( 250V ~ )		 locking configuration
2 pole
3 wire grounding

NEMA 5-50P
( 250V ~ )		 straight blade configuration
2 pole
3 wire grounding
NEMA 6-50P
( 250V ~ )		 straight blade configuration
2 pole
3 wire grounding
NEMA 10-50P straight blade configuration
3 pole
NEMA 11-50P
( 250V ~ )		 straight blade configuration
3 pole
NEMA 14-50P
( 125/250V ~ )		 straight blade configuration
3 pole
4 wire grounding
NEMA L14-50P
( 125/250V ~ )		 locking configuration
3 pole
4 wire grounding
NEMA L15-50P
( 125/250V ~ )		 locking configuration
3 pole
4 wire grounding

 


Back to top