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motor_connection_guide

Motor
Connections
Guide

 

quick_equipment_changeouts

 

The quick, safe and flexible connection capabilities of Meltric DECONTACTOR™ Series plugs and receptacles makes them the ideal choice for plug and play and modular process applications. Modular factories commonly use Meltric to connect to electrical drops for quick connection/ disconnection and rearrangement capabilities with total safety. 

Decontactors Make it Easy

maintenance

Using Meltric Decontactor Series Motor Plugs to connect motors and other equipment instead of hard-wiring can help reduce equipment change-out and downtime costs by as much as 50%. Pre-wiring replacement motors with Meltric plugs eliminates the time, cost and hassles of needing an electrician to do wiring during change-outs and perform associated safety related work practices. Most importantly, you get your process back on-line in a fraction of the time.

 

Motor Change-out Process Comparison*

Motor Connected with
a Meltric Motor Plug
Motor Hard-wired to a Competitior's Bladed
Disconnect Switch
Motor Connected
with a Competitive
Plug & Receptacle
meltric_connection
hardwired
competitor
1. Mechanic removes     plug from receptacle

1. Electrician opens 
    disconnect  switch
1. Open interlock switch
2. Apply lockout/tagout     
    as required

2. Determine PPE 
     requirements and obtain
2. Determine PPE requirements
    & obtain
3. Mechanic removes     old/installs new motor

3. Remove disconnect cover
3. Remove interlock cover
4. Mechanic inserts          plug into receptacle
4. Voltmeter test to verify     deenergization

4. Voltmeter test to verify     deenergization
5. Apply lockout/tagout

5. Remove plug
6. Disconnect motor from    
    hard-wiring

6. Apply lockout/tagout as     required
7. Mechanic removes    
    old/installs new motor

7. Remove old/install new     motor
8. Electrician connects motor
    to hard wiring

8. Insert plug into receptacle

* Based on steps required to meet NFPA 70E guidelines

Solving the Motor Rotation Issue

PROBLEM: INCORRECT MOTOR ROTATION
Phase variations within a manufacturing plant and wiring errors during motor installation can cause motors to rotate in the wrong direction, extending downtime and potentially damaging products and/or equipment.
 
SOLUTION: USE DECONTACTOR SERIES SWITCH RATED PLUGS & RECEPTACLES TO HELP ENSURE CORRECT MOTOR ROTATION
     
receptacle
prewired_motor
motor_connected
DECONTACTOR RECEPTACLE
PREWIRED MOTOR
CONNECTING A MOTOR
     
When Decontactor receptaces are installed,
a test motor or motor rotation meter can be used to verify that the intended polarization is achieved. Improper phasing can easily be corrected by switching wire locations
on the receptacle.
Test receptacles with matching poplarization should also be installed at the motor service shop. This allows the electrician to verify that the intended direction of rotation has been achieved each time a plug or inlet is wired to
a motor.
Mechanics can safely connect motors that are pre-wired in this manner simply by plugging them in. The correct motor operation is ensured and the problems and additional downtime resulting from improper rotation is eliminated.
     

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4640 Ironwood Drive • Franklin, Wisconsin 53132 • 800.824.4031 • Fax: 414.817.6161