Electrical Specifications9300 Series User’s Guide

Potential Transformers

Specification

Description

 

 

Use of PTs

Required for all systems with voltage levels greater than those above

 

 

Secondary Rating

50 to 347 VAC +25% is required

 

 

CAUTION

In cases where PTs are required, the secondaries should be fused.

Current Inputs

Specification

Value

 

 

Overload

20 Amps continuous, 500 Amps for 1 second, non-recurring

 

 

Burden

0.0625 VA @ 10 Amps

 

 

Phase Current Wire Type

AWG 14 to 12 wire

 

 

Starting Current

2 mA

 

 

Current Transformers

Specification

Value

 

 

Primary Rating

Equal to the current rating of the power feed protection device

 

 

Burden Rating

>3 VA 1

Secondary Rating

5 Amp nominal, 10 Amp full-scale

 

 

1The CT burden rating must exceed the combined burden of the meter, plus cabling, plus any other connected devices.

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Chapter 7 - Hardware Reference

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Siemens 9330, 9350, 9300 manual Potential Transformers, Current Inputs, Current Transformers

9300, 9350, 9330 specifications

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