IEC-60617 Symbol Preview - Current Protection Relays

Horizontal Symbol Vertical Symbol Description

HCR1F28

VCR1F28

Come Back Current Protection

HCR1F29

VCR1F29

Differential Current Protection

HCR1F30

VCR1F30

Differential Current Protection - Relative Value

HCR1F25

VCR1F25

Maximum Current Protection

HCR1F26

VCR1F26

Minimum Current Protection

HCR1F27

VCR1F27

Minimum and Maximum Current Protection

HCR1F32

VCR1F32

In Neutral

HCR1F33

VCR1F33

In Neutral between 2 Multi-Phase Systems

HCR1F37

VCR1F37

Ground Failure Current Protection