Cooper CROUSE-HINDS EJB Serie Información De Instalación Y Mantenimiento página 2

3. Install detachable mounting feet.
• Insert four wedge shaped mounting feet into dove-tail
slots in enclosure body.
• Tap each foot to securely tighten into slot.
Figure 2. Mounting Feet
4. Securely fasten enclosure to the mounting location, then attach
into conduit system. Install approved conduit sealing fittings
when required by Section 501.15 and/or 502.15 of the National
Electrical Code plus any other applicable standards.
CAUTION
• Hazardous location information specifying class and group
listing of each device is marked on the nameplate of each
enclosure. Class and group listing for any device penetrating
the enclosure must be suitable for the classification of the
location in which the enclosure is installed.
• All unused conduit openings must be plugged. Listed plug
must engage a minimum of five full threads and be a minimum
of 1/8 inch thick.
• In Class I, Division 1, Group B locations, conduit sealing fittings
MUST be installed in each attached conduit run (within
eighteen inches of the enclosure) to comply with the latest
edition of the National Electrical Code Section 501.15 and/or
502.15 plus any other applicable code.
• Conduit sealing fittings are required on all conduit entrances
(within eighteen inches of the enclosure) for EJB361208,
EJB361808, EJB361810 and EJB362408 enclosures when
used in Class I, Div. 1, Group C hazardous areas. For other
sealing requirements, consult the National Electrical Code
CAUTION
Do not use cover bolts as a means to lift the enclosure.
Excessive force on the fully retracted cover bolts may
damage the bolt/spring assembly.
5. Loosen all cover bolts until each bolt is fully retracted into the
cover by the stainless steel spring under the bolt head. Remove
the nuts from two stud bolts, then lift off cover and carefully set it
aside to prevent damage to the ground-joint and flange gasket.
NOTE: EJB junction boxes without cover hinges have two stud
bolts located at diagonally opposite corners of the body to aid in
positioning cover. Do not remove stud bolts. Covers may be
handled more easily by installing two 5/8-11 triple lead eyebolts
into the two threaded holes provided in the cover where
provided. The eyebolts should only be threaded part way
through the cover to prevent damage to the machined flange of
the body.
EJB enclosures are furnished with captive triple lead bolts, that
utilize a spring to aid and indicate full retraction of the bolts into the
cover when opening and closing. Make sure all cover bolts are fully
retracted into the cover before attempting to open or close the
cover.
IF 931 • 08/08
When bolts are disengaged from the body flange threads, the bolts
will withdraw and be held in this position by the spring and washer
under the bolt heads. (See Figure 3).
After all bolts are fully disengaged, firmly grasp the bottom and right
side of the cover and carefully swing cover aside to prevent damage
to the ground joint surface. Avoid striking cover, or devices in
cover, on neighboring enclosures or structures.
6. Pull wires into enclosure, making sure they are long enough to
7. Test wiring for correctness with continuity checks and also for
8. To install cover, make sure cover and body ground-joint surfaces
® .
9. If cover bolts are damaged, only replace with bolts provided by
10.Pour sealing compound into sealing fittings (when required) in
BREATHER AND DRAIN
Copyright © 2008, Cooper Industries, Inc.
Triple Lead
Bolt
Figure 3
CAUTION
Hammers or prying tools must not be allowed to damage the
flat ground-joint surfaces or cover gasket. Do not handle
covers roughly, or place them on surfaces that might damage
or scratch the flat ground-joint surfaces.
make the required connections. Make all electrical connections.
The internal grounding terminal shall be used as equipment
grounding means. The external terminal is only a supplemental
bonding connection.
unwanted grounds with insulation resistance tester.
CAUTION
Clean both ground-joint surfaces of body and cover before
closing. Dirt or foreign material must not accumulate on flat
ground-joint surfaces. Surfaces must seat fully against each
other to provide a proper explosionproof seal.
are clean and not scratched. Orient cover to align with two stud
bolts on body. Lift cover to approximate position, and line up bolt
holes of cover with body. Avoid sliding cover ground-joint
surface over ground-joint surface of body. Cover/body bolt holes
must match up. Hand start the corner bolts. Fully tighten all
cover bolts (torque to 40-45 ft. lbs.) and then reinstall the two
5/16 - 18 hinge bolts (torque to 8ft. lbs.) in the cover.
Cooper Crouse-Hinds. See chart below to determine
appropriate replacements:
EJB1008 to EJB1812
EJB2412 to EJB3618
EJB362408
accordance with the instructions supplied with each of the
approved fittings and sealing compound.
CAUTION
Check breather and/or drain or their carton label to be certain
that they are suitable for the hazardous location
(class and group) in which they are being installed.
Compression
Spring
EJB BOLT KIT K1
EJB BOLT KIT K2
EJB BOLT KIT K3
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