UPC: 786210864396
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Overview
- Accommodates 450/24 kcmil (240 mm²) copper cables
- 5/16-inch bolt hole on 7/8-inch centers for secure mounting
- Die code 60 for compatibility with standard crimping tools
- Silver-plated copper construction with louvered beryllium copper contacts
- Rated for 75°C maximum operating temperature
Specifications
Finish | Tin Plated |
Material | Copper |
Type | Motor Disconnect Lug |
Voltage Rating | 600 V |
Package Dimensions (L x W x H) | 0.01 IN x 0.01 IN x 0.01 IN |
Package Dimensions (L x W x H) | 0.0254 cm x 0.0254 cm x 0.0254 cm |
Package Weight (Imperial) | 0.200 L |
Package Weight (Metric) | 0.091 kg |
MD550
T&B Method Traction Motor Disconnect Lug for Diesel-Electric Locomotives, Cable Size 550/24, Bolt Hole 5/16 Inch on 7/8 Inch Centers, Die Code 76
R16-14
Tin-plated Copper Bare Ring Terminal is non-insulated and has a basic tongue type ring. Used for wire termination in applications with 1/4 Stud and 16-14 AWG. 100 per pack
TNF18-4FB-XV
Nylon Insulated Female Bullet, Length .995 Inches, Diameter .156 Inches, Terminal Diameter .071 Inches, Wire Range #22-#16 AWG, Color Red, Copper, Tin Plated
RB2573
Nylon Fully Insulated Female Disconnect, Length 1.01 Inches, Width .38 Inches, Maximum Insulation .185, Tab Size .250x.032, Wire Range #16-#14 AWG, Color Blue, Brass, Tin Plated, 1,000 Pack
RBD14-187A
Nylon Fully Insulated 90 Degree Flag Female Disconnect, Length .74 Inches, Width .61 Inches, Maximum Insulation .150, Tab Size .187x.032, Wire Range #16-#14 AWG, Color Blue, Copper, Tin Plated
A18-250A
Non-Insulated 90 Degree Flag Female Disconnect, Length .58 Inches, Width .61 Inches, Tab Size .250x.032, Wire Range #22-#18 AWG, Copper, Tin Plated
RAD18-187A
Nylon Fully Insulated 90 Degree Flag Female Disconnect, Length .74 Inches, Width .59 Inches, Maximum Insulation .150, Tab Size .187x.032, Wire Range #22-#18 AWG, Color Red, Copper, Tin Plated
RC2577F
Nylon Insulated Open Top 90 Degree Flag Female Disconnect Terminal, Length .80 Inch, Width .88 Inch, Maximum Insulation .245, Tab Size .250x.032, Wire Range #12-#10 AWG, Color Yellow, Brass, Tin Plated, 500 PackFrequently Asked Questions
What cable sizes are compatible with the MD450?
The MD450 is designed for 450/24 kcmil (240 mm²) copper cables only.
What is the bolt hole size and spacing?
The MD450 features a 5/16-inch bolt hole on 7/8-inch centers.
What is the maximum operating temperature?
The MD450 is rated for a maximum operating temperature of 75°C.
What is the terminal torque specification?
The main lug bolt requires 500 lb-inch (56 N·m) torque, and the 10-32 UNF terminal requires 26.55 lb-inch (3 N·m).
Is the MD450 suitable for aluminum cables?
No, the MD450 is rated exclusively for copper wire.
What die code is required for crimping?
The MD450 requires die code 60 for proper crimping.
Can the MD450 be used in high-current applications?
Yes, the MD450 is designed for high-amperage loads with low resistance and temperature rise.
How to Install the MD450 Motor-Disconnect Lugs
This guide provides step-by-step instructions for installing and crimping the MD450 motor-disconnect lugs for secure electrical connections.
Estimated time: 30m
Tools needed:
Wire strippers, Crimping tool, Multimeter
Supplies needed:
Copper cable, Terminal connectors, Wire brush
- Strip the cable insulation
Use wire strippers to remove insulation from the cable to the specified length in the installation table. Avoid nicking the cable strands.
- Prepare the cable end
Clean the cable end with a wire brush. Insert the cable into the terminal connector until it stops, and inspect through the peep hole to ensure it is fully inserted.
- Crimp the connector
Place the terminal connector in the appropriate die of the crimping tool and compress it in the center of the barrel recess. Ensure you are using the correct die to avoid defective connections.
- Remove sharp edges
After crimping, carefully remove any sharp edges, flash, or burrs from the connector to ensure safe handling.
- Test the connection
Use a multimeter to verify the integrity of the connection before energizing the circuit. Ensure that the wires are not hot during this process.
Frequently Asked Questions about ABB - Installation Products
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