EGS Electrical Group • 800-621-1506 • www.appletonelec.com
Rev. D 10/03/2007
Page 1
300880-3
INSTRUCTION SHEET
U.S. Patent No. 3,735,078
EBR Receptacles with Interlocked Circuit Breaker:
Explosion-Proof, Dust-lgnition-Proof.
Weatherproof Spring Cover—30, 60 and 100 Amps at 600V A.C. Max.
Interlocked Circuit Breaker Safety Construction. Grounding thru Extra Pole and Shell
*CAUTION: To prevent Ignition of hazardous atmospheres, do not use in Class II,
Group F locations that contain electrically conductive dusts. Most coal dusts are not
electrically conductive.
Class I, Div. 1 and 2
Groups C, D
Class II, Div. 1 and 2
Groups F, G
Class III
Type 3R
NEMA 7CD, 9F*G
WIRING
1. Conductors from Receptacle are connected to the circuit breaker
as shown.
CIRCUIT BREAKER REPLACEMENT
1. Loosen the two screws #1 located on the mounting plate on the
load side of the breaker.
Note - only loosen enough for the mounting plate #2 to slide
from under the screw heads.
2. Remove the remaining two screw #3 that secure the mounting
plate #2 in place.
3. Loosen the breaker screws #4 that connect the breaker phase
locations to the conductors which are attached to the contact
block pins. Loosening of these screws will allow removal of the
breaker and mounting plate assembly.
4. Loosen and remove the four breaker mounting screws #5 which
secure the breaker to the mounting plate.
5. Discard the old breaker & four mounting screws #5. Insert the four
new mounting screws #5 through the back of the new breaker.
Fasten to the mounting plate #2 as shown. Cut off surplus length
of screw protruding through the plate and fasten the mounting
plate #2 to the inside of the cover #6 by reversing steps 1 to 3
above, making sure to tighten all screws securely.
2 WIRE - 3 POLE
GREEN WIRE
GROUNDING
STRIP
HALF MOON
CONFIGURATION
GREEN WIRE
GROUNDING
STRIP
3 WIRE - 4 POLE
GREEN WIRE
GROUNDING
STRIP
HALF MOON
CONFIGURATION
GREEN WIRE
GROUNDING
STRIP
1
1
2
2
3
CONDUCTOR INSULATION BELOW THIS SURFACE
CONTACT SET SCREW
CONTACT BLOCK
GROUNDING
STRAP
CIRCUIT
BREAKER
#5
(4) MOUNTING
SCREWS
#6
COVER
#3
BREAKER SCREWS
#4
BREAKER WIRING SET SCREWS
FIELD WIRING
TERMINALS
#2
MOUNTING PLATE
#1
BREAKER SCREWS
MOUNTING PLATE
WEST BREAKER
GE BREAKER
LOWER SIDE
(LOAD SIDE OF BREAKER)
UPPER SIDE
(LINE SIDE OF BREAKER)
