Edwards EH1200

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Technical data
M518-00-880 Issue A
2.5 Cooling-water data
The single interface connections distribute the require coolant flows to the CXS Pump and EH Booster. The
information given below is the total water requirements for the complete system.
Table 6 - General electrical data
Description Rating Units
Supply voltage 3-phase Refer to rating plate V a.c.
Frequency 50 Hz
Wiring configuration 3 wire plus Earth (ground)
Branch circuit protection requirement Current rating, refer to Table 5
Fuse class gG (IEC 60269), UL class T or class J, Bussmann
type JJS or equivalent I
2
t characteristic rated to 600 V
Voltage tolerance range +/- 10%
Installation category II (IEC 60664-1)
Input supply voltage unbalance Should not exceed 2% when assessed over any one minute
period
Short circuit current rating (when
installed with class T or class J fuses)
200 kA
Second protective Earth (ground)
conductor
Must be fitted with cross-sectional area at least equal to
phase conductor size
Typical earth leakage
*
*
Typical earth leakage values measured at steady-state conditions. Note that higher leakage currents may
occur:
i) Under transient conditions such as power on or pump acceleration.
ii) With abnormal supply configurations such as a missing or earthed phase or unbalanced supply voltages.
Contact Edwards for more information about configuration requirements for earth leakage reduction.
for 380 - 415 V systems <10 mA
Motor service factor S1
Table 7 - Water cooling system data
Description Rating Units
Maximum supply pressure 6.9 barg
100 psig
Maximum allowable system
differential pressure
5.5 bar
Minimum required pressure
differential across supply and return
for T3
1.6
*
bar
Minimum required pressure
differential across supply and return
for T160/T4
3
*
(max 20°C water)
5
*
(max 25°C water)
bar
Minimum supply flow rate for T3
operation
7
†
(CXS160/250 + EH1200)
9
†
(CXS250 + EH2600)
l/min