Thomas & Betts MD550, MD450 Installation Manual

COPPER TRACTION

MOTOR-DISCONNECT LUGS

GENERAL INFORMATION

• Made of high conductivity copper, electro-tin plated.

WARNING

DO NOT CRIMP ON HOT

ENERGIZED WIRES.

INSTALLATION INSTRUCTIONS

1. Strip the insulation from cable to the length shown in table on reverse side.
Be careful not to nick cable strands which may later result in strands
breaking.

2. Cable end should be clean: wire brushed then inserted into the connector
until it stops. Inspect cable through peep hole to conrm cable is fully
inserted.

3. Table on reverse side shows installing die code. Insert connector in die and
compress in center of recess on barrel.

CAUTION

Using improper installing die may result in a defective connection.

4. After crimping, remove all sharp edges, ash or burrs.

WARRANTY: Thomas & Betts sells this product with the understanding that the user will perform all necessary tests to
determine the suitability of this product for the user's intended application. Thomas & Betts warrants that this product
will be free from defects in materials and workmanship for a period of two (2) years following the date of purchase. Upon
prompt notication of any warranted defect, Thomas & Betts will, at its option, repair or replace the defective product or
refund the purchase price. Proof of purchase is required. Misuse or unauthorized modication of the product voids all
warranties.

Limitations and Exclusions: THE ABOVE WARRANTY IS THE SOLE WARRANTY CONCERNING THIS PRODUCT,

AND IS IN LIEU OF ALL OTHER WARRANTIES EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO ANY
IMPLIED WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE, WHICH ARE
SPECIFICALLY DISCLAIMED. LIABILITY FOR BREACH OF THE ABOVE WARRANTY IS LIMITED TO COST OF
REPAIR OR REPLACEMENT OF THE PRODUCT, AND UNDER NO CIRCUMSTANCES WILL THOMAS & BETTS BE
LIABLE FOR ANY INDIRECT, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES.

Thomas & Betts Corporation

In Canada, Thomas & Betts Ltd., Iberville, P.Q.

© 2010 Thomas & Betts. All Rights Reserved.

Memphis, Tennessee

Website: www.tnb.com

TA04599 A Page 1 of 2

Cat. No.

Cable Size

(Copper Only)

Dimensions (inches) E Bolt Size (Inches)

A B C D Approx. (inches) F G H

Die Code Strip Length

MD225 225/24 3 1-7/8 11/16 13/64 23/32 7/16 5/16 7/8 60

MD275 275/24 3 1-7/8 11/16 13/64 23/32 7/16 5/16 7/8 60

MD325 325/24 3 1-7/8 11/16 13/64 23/32 7/16 5/16 7/8 60

MD375 375/24 3-1/8 2 25/32 13/64 23/32 7/16 5/16 7/8 60

MD450 450/24 3-1/8 2 25/32 13/64 23/32 7/16 5/16 7/8 60

MD550 550/24 3-3/16 1-7/8 15/16 13/64 1 7/16 5/16 7/8 76

MD650 650/24 3-3/16 1-7/8 15/16 13/64 1 7/16 5/16 7/8 76

MD775 775/24 3-3/16 1-7/8 15/16 13/64 1 7/16 5/16 7/8 76

MD925 925/24 3-3/4 2-1/16 1-1/8 3/8 1-5/32 7/16 3/8 1 87

MD1100 1100/24 3-3/4 2-1/16 1-11/32 3/8 1-3/8 7/16 3/8 1 107

MD1325 1325/24 3-25/32 2-3/32 1-5/32 3/8 1-3/4 7/16 3/8 1 107

MD1600 1600/24 3-3/4 2-1/16 1-11/32 3/8 1-3/8 7/16 3/8 1 107

MD1925 1925/24 4-1/16 2-3/32 1-11/32 3/8 1-1/2 7/16 3/8 1 115

MD2300 2300/24 4-3/8

2-1/8 1-19/32 3/8 1-21/32 7/16 3/8 1 130

7/8

7/8

7/8

7/8

7/8

1-1/16

1-1/16

1-1/16

1-5/16

1-7/16

1-7/16

1-7/16

1-9/16

1-13/16

G

E

C

H F

A

B

± Cat. No. MD1925 Supplied
with Elongated Bolt Holes.

9/167/8

7/16

APPLICATION TOOLS: TBM14, TBM15 or 21940

D

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