Ground Connection; Motor Protector Connections - caprari K+ Serie Instrucciones De Servicio

ROUGH DIAGRAM OF ELECTRIC PUMP CABLE CONNECTIONS
Δ
( connection for direct starting)
For EX version
CONDUCTIVITY
DETECTOR
For control with automatic
re-ignition
For control with manual
re-ignitione
For Y-Δ starting, use the terminals of the electric pump power supply cables according to the indications in the control panel wiring diagrams.
19.

GROUND CONNECTION

The Yellow/Green ground terminals in all electric pump cables must be connected to the grounding circuit of the system before
the other terminals are connected. If the electric pump is disconnected, these must be the last terminals to disconnect.
cable clamp. The installer is responsible for connecting this terminal to the grounding circuit of the system.
20.

MOTOR PROTECTOR CONNECTIONS

20.1. ELECTRIC PUMPS WITH THERMAL PROBES
WARNING All electric pumps (K...-E version) are equipped with thermal probes (terminals marked with symbols 5 and 6) as part of the
standard supply. It is obligatory to connect them to a suitable circuit-breaking device. The probes can be installed in series
with the low voltage control circuit of the remote control coil. The motor can be automatically restarted.
Thermal probes are normally closed bimetal switches installed in the motor windings. Once the temperature rises above 155°C (311°F), these
WARNING
RO and terminals marked with the symbols P and BO). It is obligatory to connect they to suitable monitoring instruments.
The probes can be installed in series with the low voltage control circuit of the remote control coil. The motor can be
automatically restarted if probes (terminals P-RO) activate. If probes (terminals P-BO) activate, the motor can only be
Caprari S.p.A.
G/V
15
RO
P
BO
L1 (R)
L1(u)
POWER SAFETY
L2(v)
SUPPLY LINE
ISOLATOR
L3(w)
L3 (T)
K.M150R.. / K.250... / K.D300... / K.D350...
For E version
CONDUCTIVITY
DETECTOR
For control with automatic
re-ignition
G/V
GB
15
5
6
U1
V1
W1
G/V
U2
V2
W2
G/V
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