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SYSTEM DATA
A652-18-880 Issue C
4.6.2 Electrical data: three-phase pumps
When you start a cold pump, the motor will draw the start-up current shown in Table 6 for several seconds. The
current will then reduce quickly as the motor reaches rated rotational speed. Within 5 minutes, as the oil and pump
warms up, the current drawn will slowly reduce to the full load current specified in Table 6.
When you start a warm pump, the motor will draw the start-up current shown in Table 6 for up to 0.5 seconds. The
current drawn will then immediately fall to the full load current specified in Table 6.
Electrical short-circuit and ground-fault protection of the pump will be provided by fitting Class CC fuses of the values
shown in Table 6 at the point of connection to the supply. If these are not available in your country of use, Type aM
European fuses of the same rating can also be used.
Table 6 - Electrical data (three-phase pumps)
Pump
Nominal
supply (V)
Frequency
(Hz)
Power
(kW)
Full load
current (A)
Start-up
current (A)
Recommended
fuse rating (A)
EM40 400 50/60 1.1 2.55 11 5
EM80 400 50/60 2.2 4.8 14 10
EM175 400 50/60 5.5 11 52 20
EM275 400 50/60 7.5 14.5 52 25
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