Understand the difference.

Compare the meaning, drawing context and source references of two entries. A similar graphic or shared abbreviation does not establish equivalence.

LS FLOAT NC

Symbols

Float level switch NC

A float-operated NC level switch opens when its documented level condition actuates the mechanism. Reference state and level direction must be shown for alarm or pump-control interpretation.

Drawing use

Schematic

Application

Control circuits

Reference family

IEC / Manufacturer

A distinction that matters

NC does not necessarily mean low-level trip; the selected mechanism defines the process action.

Full referenceAdd to legend

PLC I/O

Symbols

PLC input / output

A PLC input or output point connects a field signal with a controller module and channel. Input and output, digital and analogue, and one-wire or multi-wire arrangements are distinct characteristics. The module specification establishes electrical behaviour and terminal information.

Drawing use

Schematic

Application

Control circuits

Reference family

IEC / IEEE / ANSI

A distinction that matters

An input point, output point and communications connection are different interfaces. A generic box cannot establish their electrical compatibility.

Full referenceAdd to legend

Original educational previews. Follow the source references on each full entry for the appropriate standard or selected product.