Appleton ST, STB, STN, STL Installation Instructions

Installation Features of ST™, STB, STN and STL Connectors and Hubs

COMMERCIAL AND INDUSTRIAL FITTINGS: LIQUIDTIGHT CONDUIT FITTINGS

© September 2017

For Liquidtight Flexible Metal Conduit

NEC/CEC — Suitable for use in the following
Hazardous Locations:

Class I, Division 2 per NEC 501.10(B)(4)
Class I, Zone 2 per NEC 505.15(C)(2)
Class II, Division 1 per NEC 502.10(A)(2)(2)
Class II, Division 2 per NEC 502.10(B)(2)

Using hacksaw, cut liquidtight flexible conduit making certain that the jacket and conduit are flush. (A) Place compression nut over
conduit. (B) Screw ferrule onto the spiralled steel inner wall of the conduit. The firm grip of the ferrule threading against the inner conduit
wall provides a continuous, permanent, positive metal-to-metal ground. There are no sharp edges to cause injury to wire during or after
installation. (C) Place the liquidtight flexible conduit with the ferrule into connector body. (D) Tighten compression nut as far as it will go. This
will assure correct collaring of the conduit—the end of the metal edge of the ferrule will curve out slightly. (E) This prevents damage to the
conduit jacket itself at the time of installation, and also insures against future damage from frequent flexing, jarring or vibration.

A E

Patented

Ferrule

B

Flexible

Liquidtight

Mettalic Conduit

Compression

Nut

NEC/CEC — Suitable for use in the following
Hazardous Locations:

Class III, Division 1 per NEC 503.10(A)(3)(2)
Class III, Division 2 per NEC 503.10(B)
Intrinsically Safe per NEC 504.20

Connector

Body

Compression Ferrule

Ferrule Threaded into Conduit

C

Assembly Before Compression

D

Assembly After Compression Showing Positive Ground

Sealing Gasket

Neoprene sealing gasket eliminates common connection
problems and assures a liquidtight installation. Seals against
oil, water, dirt and chemicals.

Space Saving Hex-Hub Wedge Adapter

Male shank of unique Appleton™ hex-hub wedge adapter “finger
tightens” into connector body. Flared surface of adapter wedges
box wall against locking edge of body. Forms full 360° contact
on both sides of box wall.

Insulated Throat

Insulating insert recessed into hex-hub wedge adapter protects
against wire damage...without reduction in throat diameter.
Perfect for extreme vibration conditions. Nothing to come loose,
deteriorate, crack or break!

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