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EBARA Submersible Sewage Pumps
DL3FU / DL3MFU / DL3KFU / DL3KMFU / DDL3FU / DV3FU/ DML3FU
Operating, Installation, and Maintenance
INSTRUCTION MANUAL
4. Electric Wiring
4.1 Power Leads Connection
WARNING: CHECK THAT THE POWER IS LOCKED OUT AND TAGGED OUT AND
!
DISCONNECTED BEFORE WORKING ON PUMP. ALL ELECTRICAL WORK SHOULD BE
PERFORMED BY A QUALIFIED ELECTRICIAN AND ALL NATIONAL AND LOCAL
ELECTRICAL CODES MUST BE OBSERVED.
WARNING: IF THE PURCHASED PUMP IS AN FM EXPLOSION-PROOF PRODUCT,
!
CHANGING OF THE INTERNAL MOTOR WIRING I.E. CHANGING 208/230V
BE PERFORMED AT EBARA'S FM APPROVED SERVICE SHOP. UNAUTHORIZED WORK
MAY IMPAIR EXPLOSION-PROOF PERFORMANCE. THIS IS DANGEROUS AND MUST BE
AVOIDED!
Wiring
a) Wire as indicated for the appropriate start system as shown in Fig. 10.
b) Loose connections will stop the pump. Make sure all electrical connections are secure to
prevent short circuit.
The electric wiring for a submersible motor is no different from an ordinary motor, except the
direction of rotation cannot be easily verified.
Wiring to wrong terminals results in reverse rotation. To prevent this and to achieve best results,
the following wiring procedure is recommended.
Connect terminals L1, L2 and L3 to the secondary terminals L1, L2 and L3 of the
electromagnetic switch or breaker respectively. Connect the remaining terminal G to ground.
L1
L2
L3
G
WARNING: WHEN PREPARING POWER CABLE LEADS FOR CONNECTION TO
!
CONTROL, IT IS ESSENTIAL THAT THE GROUND LEAD BE LONGER THAN THE POWER
LEADS. THE GROUND LEAD MUST HAVE AT LEAST 2
AFTER CONNECTION, CUSTOMER TO ENSURE SUFFICIENT SPACE. THIS IS DONE
FOR ELECTRICAL SAFETY. IF THE CABLE IS MISTAKENLY PULLED OUT, THE GROUND
LEAD WILL BE THE LAST WIRE BROKEN.
EBARA
PM32U
PUMPS AMERICAS CORPORATION
www.pumpsebara.com
(t) 803.327.5005 (f) 803.327.5097
Power source
Ground
⇆
460V) MUST
"
(50 MM) SLACK REMAINING
P.12
13
rev. 01/21
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