October 2008

Rev 2

1/5

AN2167

Application note

Using the STPM01 with a shunt current sensor

Introduction

This document describes how a shunt current sensor can be used with the STPM01

metering device in single-phase metering applications without tamper detection.

Special considerations must be taken into account when the shunt is designed:

within the meter housing. In the event of large current overloads, this can become an

explosion hazard.

Note:

Special safety precautions must be followed while the meter is connected to the power line

and opened. The ground plane of the meter is at a high voltage level because the shunt has

to measure the current flow through a hot conductor without any galvanic isolation. This is a

safety hazard for the operators and can destroy the connected equipment.

For more information on the STPM01, refer to the full datasheet.

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