Schneider Electric HRB1684301-01 Manual De Usuario

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HRB1684301-01

Chapter 2—Hardware reference

PowerLogic™ PM5500 series user manual

For wiring instructions and safety precautions, see the meter installation sheet that was 
shipped with your meter, or download a copy at www.schneider-electric.com.

The meter’s voltage inputs must be wired to fuses/breakers and a disconnect switch. If 
using a voltage transformer (VT), both primary and secondary sides of the VT must be 
wired to fuses/breakers and disconnect switches.

•

Clearly label the device’s disconnect circuit mechanism and install it within easy 
reach of the operator.

•

The fuses / circuit breakers must be rated for the installation voltage and sized for 
the available fault current.

•

Fuse for neutral terminal is required if the source neutral connection is not 
grounded.

See the meter installation sheet for fuse ratings.

For all connected current inputs, use a CT shorting block to short-circuit the secondary 
leads of the CTs before removing the current input connections to the meter.

NOTE: Ground any unused current inputs.

In situations where you are monitoring a balanced 3-phase load, you may choose to 
connect only one or two CTs on the phase(s) you want to measure, and then configure 
the meter so it calculates the current on the unconnected current input(s).

NOTE: For a balanced 4-wire Wye system, the meter’s calculations assume that there 
is no current flowing through the neutral conductor.

3-phase 4-wire ungrounded Wye
—
3PH4W Wye Ungnd

347 V L-N / 

600 V L-L

347 V L-N / 

600 V L-L

3 VT or 2 VT

3-phase 4-wire grounded Wye
—
3PH4W Wye Gnd

347 V L-N / 

600 V L-L

400 V L-N / 

690 V L-L

3 VT or 2 VT

3-phase 4-wire resistance-grounded 
Wye
—
3PH4W Wye Res Gnd

347 V L-N / 

600 V L-L

347 V L-N / 

600 V L-L

3 VT or 2 VT