A705-74-880 Issue K
Page 8 © Edwards Limited 2009. All rights reserved.
Edwards and the Edwards logo are trademarks of Edwards Limited.
TECHNICAL DATA
2.3 Cooling system
Table 1 - Motor Supply Current (A)±5%
Motor supply current (A)
Pump Supply
Pump inlet at
ultimate
vacuum
Pump inlet at
atmospheric
pressure
Rated full load
current for
continuous
motor
operation
Locked rotor
condition
GV260 50 Hz 415v 11 18 20.8 173
GV260 60 Hz 460v 11 22 22.9 142
GV410 50 Hz 415 V 17 23 28.1 219
GV410 60 Hz 460 V 15 26 28.4 199
GV600 50 Hz 415 V 17 41 39.5 324
GV600 60 Hz 460 V 16 44* 33.8 216
* Motors carry S2 ratings that enable them to run safely with this current when the pump is subjected to high
inlet pressures. Supply protection circuit breakers should be set at this level as described in Section 3.6.1.
Cooling system type Direct water-cooling
Cooling-water requirements See Section 2.2 and Ta b l e 2
Thermal snap-switches
Warning thermal snap-switch
Opening temperature 154°F (68°C)
Closing temperature 144°F (62°C)
Shutdown thermal snap-switch
Opening temperature 167°F (75°C)
Closing temperature 147°F (64°C)
Contact ratings
Maximum voltage 240 V
Maximum load (inductive) 120 VA
Maximum current (resistive load) 12 A
Table 2 - Te c h n i cal Da t a
Pump Type
DATA
GV260 50
Hz
GV260 60
Hz
GV410 50
Hz
GV410 60
Hz
GV600 50
Hz
GV600 60
Hz
Mass: kg 767 785 819 848 1022 959
Continuous power 11 kW 20 hp 15 kW 25 hp 22 kW 30 hp
Noise: dB (A *) <76 <78 <76 <78 <76 <78
Max. pumping speed: m
3
h
-1
240 320 380 460 560 540
Displacement: m
3
h
-1
336 405 526 635 793 727
Ultimate: mbar <0.065 <0.04 <0.065 <0.04 <0.05 <0.04
Maximum heat removed: kW 7.0 8.0 10.0 13.2 14.5 16.5
Maximum coolant flow: l/min 5.0 5.0 5.6 9.0 4.5 5.5
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