Thomas & Betts 144SL Installation Manual

EXCLUSIVE FEATURES:

• ONLY ONE SEALING LOCKNUT IS REQUIRED TO MAKE

A WATERTIGHT OR RAINTIGHT GROUNDED CONDUIT
CONNECTION.

• SAVES INSTALLATION TIME.

• SUITABLE FOR USE IN WET LOCATIONS.

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 A NY IMPLIED WARR ANTY OF MERCH ANTABILITY OR FITN ESS FOR A PARTICULAR
PURPOSE , WHICH AR E SPECIFI CALLY DI SCLAIMED . LIABILI TY FOR BRE ACH 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 • Memphis, Tennessee • www.tnb.com

TA00598 C Page 4 of 4 TA00598 C Page 1 of 4© 2010 Thomas & Betts. All Rights Reserved.

SEALING LOCKNUT

Installation Guide

Catalog Numbers

141SL, 142SL, 143SL, 144SL, 145SL, & 146SL

THIS GUIDE HAS BEEN PREPARED TO SHOW THE PROPER METHOD

OF INSTALLING THOMAS & BETTS SEALING LOCKNUTS.

SEALING

UL and CSA Certified.

LOCKNUT

ZINC PLATED STEEL LOCKNUT

ELASTOMER GASKET

CATALOG NUMBER CONDUIT SIZE

141SL 1/2”
142SL 3/4”
143SL 1”
144SL 1-1/4”

Figure 1

1. Thread sealing locknut onto
conduit up to end of thread, as
shown in Figure 1.

145SL 1-1/2”
146SL 2”

TA00598 C Page 2 of 4 TA00598 C Page 3 of 4

RIGID CONDUIT

LOCKNUT OR BUSHING

2. Insert conduit into entry at
enclosure with sealing locknut on
outside as shown in Figure 2.

3. Install rigid conduit locknut or
bushing on inside and tighten
assembly for secure seal and
ground.

Figure 2