How To Select Power Connectors   Receptacle, Power Connector, Power entry module  Image Credit: Leviton | LappUSA | Digi-Key Power connectors are female power connectors into which plugs or male connectors are inserted to make circuit connections. They transfer alternating current (AC) or direct current (DC) through a variety of electronic devices.   Types Several types of power connectors are available. Plug/inlet- Plugs are male connectors...
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Q & A on Power Connectors

We asked our users for their input on Power Connectors. Here are the results of 79 users familiar with Power Connectors.

Who Took Our Poll? | Design Trends | Applications and Use | Features | Buying Advice |

Who Took Our Poll?Top

Design TrendsTop

Q:
What new technologies are influencing power connector design?
12 answers
Answers:
Amphenol company technology (screw female contact) for solar connectors makes the contact very reliable.
~Slava L, Engineer, Kfar Saba, Israel
The plug and play design of most applications require today.
~Byron T, Plant Test Engineer, Alpharetta, GA
Capturing regenerative power in hybrid electric vehicles.
~Marketing/Sales, Wallingford, CT
Warranty and Charpy Compliant Material within Alberta.
~Kyle H, Purchaser, OKotoks, Canada
Light weight and sealing capability
~Bruce Roberts, Quality Control, Sale, Australia
High frequency pwm power control
~Alan B, Engineering Consultant, Norwich, England
Always tight No false connection.
~Juan P, Production Engineer, Guatemala, Guatemala
I am not aware of any of them
~Federico Gutierrez, Technical Support, Barranquilla, Colombia
Water prof. corrosion prof.
~Dieter V, Builder/Contractor, Guaruja, Brazil
Spring loaded butt contacts
~KV S, Engineering Consultant, BANGALORE, INDIA
MIL-C..5015,83723,38999...
~Tony Mueller, Process Engineer, Berne/Switzerland, Switzerland
Hyperboloid sockets
~Engineering, Design, Saratov, Russia

Q:
From your perspective, which companies are creating the most innovative power connectors?
11 answers
Answers:
I think they are all innovative depending on the application.
~Bruce Roberts, Quality Control, Sale, Australia
Marechal, now part of Eaton thru Clipsal and Moeller
~KV S, Engineering Consultant, BANGALORE, INDIA
Patton & Cooke, Sefcor, Slacan
~Kyle H, Purchaser, OKotoks, Canada
Remained in the classics
~Federico Gutierrez, Technical Support, Barranquilla, Colombia
EMCT Swiss-connTec Inc.
~Tony Mueller, Process Engineer, Berne/Switzerland, Switzerland
Amphenol, Molex, Wago
~Slava L, Engineer, Kfar Saba, Israel
Hypertac
~Engineering, Design, Saratov, Russia
Siemens
~Juan P, Production Engineer, Guatemala, Guatemala
Glenair
~Marketing/Sales, Wallingford, CT
Harting
~Byron T, Plant Test Engineer, Alpharetta, GA
Deutch
~Dieter V, Builder/Contractor, Guaruja, Brazil

Applications and UseTop

Q:
What are some of the applications you have used power connectors for?
19 answers
Answers:
Connection of switchgear feeder breakers to transformers, motors up to 7,000 HP, motor control centers, and heaters up to 1 MW, etc. Connection of generator outputs to main breakers ground, resistors and transformers.
~Technical Support, Houston, TX
Main machine connection. Terminal block connectors for electric motors. Electronic cards.
~Federico Gutierrez, Technical Support, Barranquilla, Colombia
Military vehicles, commercial power grids, hybrid electric vehicles.
~Marketing/Sales, Wallingford, CT
Marine, industrial,oil/gas, rail traction and military power systems
~Alan B, Engineering Consultant, Norwich, England
To connect electric motors, soft starters, circuit breakers, etc.
~Juan P, Production Engineer, Guatemala, Guatemala
Transportation Substations, VFD drive systems, Test equipment
~Byron T, Plant Test Engineer, Alpharetta, GA
Power control centers and various power distribution boards
~K B J Ramakrishna, Technical Support, Kakinada, India
Stage lighting equipment and associated power applications
~Milton A, Facilities Manager, Singapore, Singapore
Along with machines and equipment which may be relocated
~KV S, Engineering Consultant, BANGALORE, INDIA
Different types of power supplies
~Slava L, Engineer, Kfar Saba, Israel
Boating, Aviation and Automotive
~Bruce Roberts, Quality Control, Sale, Australia
Military,Industries.Telecom,...
~Tony Mueller, Process Engineer, Berne/Switzerland, Switzerland
Industrial, telecom, datacom
~General Corporate Mgmt, Rosbach, Germany
Utility Lines, Oil Rigs.
~Kyle H, Purchaser, OKotoks, Canada
Power for avionics boxes
~Engineering, Design, Saratov, Russia
Market them only
~Marketing/Sales, Solon, OH
Air conditioners
~Marketing/Sales, Irving, TX
Power supplies
~Research & Development, Singapore, Singapore
Marine
~Dieter V, Builder/Contractor, Guaruja, Brazil

Q:
Please share with us any “non-standard” applications that power connectors have been used for.
6 answers
Answers:
I use a power connector on an ebullating pump application with redundant vfd's. The connector is used to test offline vfd to ensure operation.
~Byron T, Plant Test Engineer, Alpharetta, GA
When designer needed to use a few pins of power connector for low current signals.
~Slava L, Engineer, Kfar Saba, Israel
Inclusion of current & voltage breakdown sensing devices.
~Alan B, Engineering Consultant, Norwich, England
None that I can think of....
~KV S, Engineering Consultant, BANGALORE, INDIA
Boating loom connectors
~Bruce Roberts, Quality Control, Sale, Australia
Grounding cabinets
~Engineering, Design, Saratov, Russia

Q:
Do you know of any disastrous mistakes that occurred due to the incorrect usage of power connectors?
6 answers
Answers:
Incorrect choice of connector pins plating(silver instead of gold) brought to situation that the equipment stopped to operate.
~Slava L, Engineer, Kfar Saba, Israel
Partially mated threaded connectors burned a military asset in Afghanistan.
~Marketing/Sales, Wallingford, CT
The most common in my work is short-circuited by pulling the cord.
~Federico Gutierrez, Technical Support, Barranquilla, Colombia
Short circuits due to inferior power connector material.
~K B J Ramakrishna, Technical Support, Kakinada, India
Fire, electrocution, death
~Milton A, Facilities Manager, Singapore, Singapore
Some, yes
~KV S, Engineering Consultant, BANGALORE, INDIA

FeaturesTop

Q:
What would your design or feature "wish list" be for this product?
12 answers
Answers:
Light weight, self sealing and a choice of poles. Must be able to be in various current ratings from 3 to 30 amps at 12 volts.
~Bruce Roberts, Quality Control, Sale, Australia
1/outdoor application IP67, IP68 2/ground pin option for metal case connectors 3/female pin like Amphenol
~Slava L, Engineer, Kfar Saba, Israel
Simple installation, without unscrewing. one click and turn security to prevent short circuits.
~Federico Gutierrez, Technical Support, Barranquilla, Colombia
Related housing and perhials be in the same location in the catalog.
~Byron T, Plant Test Engineer, Alpharetta, GA
For domestic automation and industrial panel boards.
~K B J Ramakrishna, Technical Support, Kakinada, India
That Maclean also supplied more charpy hardware.
~Kyle H, Purchaser, OKotoks, Canada
Fast connection that never heat, dirt or loose.
~Juan P, Production Engineer, Guatemala, Guatemala
Finger safe output, behind-the-panel input
~Marketing/Sales, Irving, TX
Aerospace performance in power connector
~Marketing/Sales, Wallingford, CT
Incorporate my statements in boxes 4&5
~Alan B, Engineering Consultant, Norwich, England
Easy insertion and withdrawal
~KV S, Engineering Consultant, BANGALORE, INDIA
Military & Machine Industry
~Tony Mueller, Process Engineer, Berne/Switzerland, Switzerland

Buying AdviceTop

Q:
Do you have any advice for people relative to buying or using power connectors?
6 answers
Answers:
Connectors are the door and target for rapid changes of equipments, like Turbine Engines...on Aircrafts.
~Tony Mueller, Process Engineer, Berne/Switzerland, Switzerland
Have a real good look at the market, there are such a diverse range of capacity and applications.
~Bruce Roberts, Quality Control, Sale, Australia
Identifying what is right, and is it readily available in the market worldwide is very important.
~Federico Gutierrez, Technical Support, Barranquilla, Colombia
Ask for exactly what you want. There is a lot of development happening.
~Marketing/Sales, Wallingford, CT
Do research, make sure they are compliant for the use.
~Kyle H, Purchaser, OKotoks, Canada
Study long-term contact resistance behavior.
~KV S, Engineering Consultant, BANGALORE, INDIA

Q:
Is there any advice you want to share with users to help them avoid common errors in selection or usage of power connectors?
7 answers
Answers:
All parts should work in conjunction with each other to form an assembly. Not all power connectors are interchangeable.
~Kyle H, Purchaser, OKotoks, Canada
Don't use plug-sockets where spring force is provided by the socket. Look for external springs.
~KV S, Engineering Consultant, BANGALORE, INDIA
Be clear about the application specifications for current, voltage, etc.
~Federico Gutierrez, Technical Support, Barranquilla, Colombia
Make sure it's man enough for the job and the lifetime of the project.
~Alan B, Engineering Consultant, Norwich, England
If possible select a higher capacity than required.
~Bruce Roberts, Quality Control, Sale, Australia
Standardize to eliminate lead time.
~Marketing/Sales, Wallingford, CT
Don't buy cheap
~Milton A, Facilities Manager, Singapore, Singapore


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