HUBBELL CIRCUIT -LOCK™
SAFETY-SHROUD TWIST LOCK
®
MECHANICAL INTERLOCK
Installation Instructions
Wiring Device-Kellems
Hubbell Incorporated (Delaware)
Shelton, CT 06484
1-800-288-6000
www.hubbell-wiring.com
PD1785 (Page 1) 06/11
GENERAL INFORMATION
NOTICE:
For installation by a qualified electrician in accordance with national and local
Electrical codes and the following instructions.
NOTICE:
Receptacle MUST be installed BEFORE connection to power supply. 30 Amp
Maximum receptacle rating. See ratings table and wiring diagrams.
CAUTION: Risk of electric shock. More than one disconnect switch may be required
to de-energize this equipment before servicing. Disconnect ALL power supplies to
enclosure before exposing interior.
NOTICE:
This enclosure must NOT be used as a junction box for feed-through
connections.
NOTICE:
Separate overcurrent protection must be provided in accordance with
National Electrical Code® Article 220 or Canadian Electrical Code, Section B, as
appropriate. Overcurrent protection MUST NOT exceed the ampere rating of the
receptacle. [Ref. National Electrical Code®, Part 1, Rule 430-42(c) or Canadian Electrical
Code®, Subrule 28-602(3)(c)(i)].
Suitable for use on a circuit capable of delivering not more than 10,000 rms symmetrical
amperes at the voltage rating of the receptacle.
This enclosure includes a lockout provision: ON-OFF control knob (in the OFF position)
accepts up to 5/16 inch (8mm) diameter shackle of a suitable padlock. Lockout device
to isolate energy from the connected equipment as a method of compliance to OSHA
Lockout/Tagout Regulation 29 CFR Part 1910.147. This feature however, does NOT
isolate the power supplied to the enclosure during internal servicing of the enclosure.
MOUNTING INSTRUCTIONS
For Type 4X and Type 12 applications, enclosure must be mounted by means of
mounting feet. DO NOT drill, punch, or nail mounting holes through the enclosure.
Mount the feet to the enclosure using the # 8 x 7/8 inch (22 mm) thread-forming screws
provided. Tighten to 18 pound
·
inches (2.2 N
····
m).
Mounting feet will accept up to ¼ inch (6mm) screws (not provided). Mounting pattern
is shown in figure.
Remove the four (4) cover mounting screws and remove the cover. Switch handle must be
“off” to remove cover.
Conduit Entrance
This enclosure may be mounted for top, bottom, or back conduit entrances. NOTE: Back
feed is permitted in Type 4X applications ONLY. Use ONLY Listed/Certified conduit hub
rated for type 4X and Type 12 applications.
Top feed:
Enclosure is supplied ready for top conduit entrance.
When using the top feed conduit entrance, drip loops must always be
formed as indicated (•). Use of user-installed conduit entrances above the
switch are not recommended in applications where condensation may be
present in conduit.
Bottom feed:
Remove frame retention screw and retaining clip, remove frame from box,
turn box 180° , replace frame, and replace retaining clip and retention screw.
Back feed:
Drill or punch a 1.109 inch (28.2mm) diameter hole for ¾ inch TRADE SIZE
conduit hub in the desired conduit entrance location. Any unused conduit
entrance holes must be sealed with Listed/Certified closure plug rated
Type 4X
.
Install the conduit hub. Be sure that the O-ring is properly seated in its groove.
Tighten the conduit hub.
WIRING INSTRUCTIONS
Select conductors having 90°C or higher rated insulation having sufficient ampacity in
Accordance with the 60°C column of National Elecrical Code® Table 310-16 or Canadian
Electrical Code Table 2.
SWITCH terminal capacity #
8-12 AWG
; GROUND and NEUTRAL terminal capacity #
8-12 AWG.
CAUTION: USE COPPER CONDUCTORS ONLY.
DO NOT TIN CONDUCTORS.
Make sure the connected equipment rating does not exceed the rating of this device. See General Information regarding
overcurrent protection.
