Protective Device Leads Connection - EBARA DL3FU Operating Instructions, Installation & Maintenance Manual

EBARA Submersible Sewage Pumps
DL3FU / DL3MFU / DL3KFU / DL3KMFU / DDL3FU / DV3FU/ DML3FU
Operating, Installation, and Maintenance
INSTRUCTION MANUAL
4.3 Protective Device Leads Connection (Table 4)
This pump has a leakage detector at the motor bottom, and a thermal detector in the stator coil
to protect the motor. Connect terminals P1 and P2 for the thermal detector to P1 and P2 of the
same control connector. Also, connect terminals P3 and P4 for the leakage detector to P3 and
P4 of the same control connector. Table 4 shows detailed specifications regarding protective
devices.
Type
Acting Temperature
Reset Temperature
Contact rating
Contact type
Cable terminal
identification
WARNING: AN EARTH LEAKAGE BREAKER MUST BE USED ACCORDING TO LAW
!
TO PREVENT ELECTRICAL ACCIDENTS.
CAUTION: A MOTOR PROTECTIVE DEVICE SHOULD BE INSTALLED ON CONTROL
!
PANEL TO PROTECT THE SUBMERSIBLE MOTOR AGAINST OVERCURRENT, OPEN
PHASE, REVERSE PHASE.
EBARA
PUMPS AMERICAS CORPORATION
PM32U
www.pumpsebara.com
(t) 803.327.5005 (f) 803.327.5097
Table 4
Thermal detector
9700K 66-215
140 +/- 5 C
o
85 +/- 10 o C
AC 115V/230V×18A/12A (max)
normally closed (b-contact)
P1
P2
Leakage detector
Float Type Reed Switch
OLV-5 (float type)
N/A
AC 300V×0.5A (max)
normally closed (b-contact)
P3
P4
P.16
17
rev. 01/21