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EBARA DSC4 Series Operating Instructions, Installation & Maintenance Manual page 19

Submersible wastewater, sewage pump

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INSTRUCTION MANUAL
Type
Manufacturer
Contact rating
Contact type
Cable terminal
identification
Material and size of
cable
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
OPEN-PHASE, OVER-CURRENT OR INCHING.
4.4 Water Level Switch Cable Connection (Fig. 16 and 17)
Figs. 16 and 17 illustrate typical float switch applications for water level control.
Three (or four) float switches are required for single unit operation, whereas four (or
five) are necessary for two-unit alternating operation.
If you desire our Ebara Water Level Control Float Switch, ask us for a catalog.
PM32U
Table 3
Thermal protector
9700K 06-215
SENSATA TECHNOLOGIES
JAPAN LTD.
AC 115V/230V 18A/12A (max) AC 300V 0.5A (max)
B-contact (normally closed)
P1
P2
Fig. 16 Single Unit Operation
Leakage detector
OLV – 5 (float type)
NOHKEN INC.
B-contact (normally closed)
P3
P4
SOOW-A #14
Alarm (abnormal high level)
ON
OFF
Alarm (abnormal low level)
P.18

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