Effective Date: 2/04
IL17574C
Page 3-11
IQ 300
Effective Date: 2/04
Page 3-11
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www.cutler-hammer.eaton.com
H1A H1B H1C
LINE
N
L2
L1
PS1 PS2
VA VB VC NEU
H2A H2B H2C
IQ 300
LOAD
Single Phase 3 Wire (Up to 600Volts)
FUSE
Control Power
IQ 320 /IQ 330
90-600VAC
48-250VDC
IQ 310
110-240VAC
125-250VDC
Case Ground
Must be
connected for
proper operation
Proper CT polarity is critical to the proper operation of the meter
Figure 3.11 Single Phase 3 Wire Configuration (Up to 600 Volts)
H1A H1B H1C
LINE
N
L1
PS1 PS2
VA VB VC NEU
H2A H2B H2C
IQ 300
LOAD
Single Phase 2 Wire (Up to 600Volts)
FUSE
Control Power
IQ 320/IQ 330
90-600VAC
48-250VDC
IQ 310
110-240VAC
125-250VDC
Case Ground
Must be
connected for
proper operation
Proper CT polarity is critical to the proper operation of the meter
Figure 3.12 Single Phase 2 Wire Configuration (Up to 600 Volts)