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What is the difference between the LAD31 and the LAD311?

What is the difference between parts LAD31 and LAD311

Product Line:
IEC contactors and starters

Products sold and used in the United States

Identifying the difference between two similar part numbers

Both serve essentially the same purpose, but the LAD311 provides support for the back of a D-Line contactor against the mounting wall, which the LAD31 does not.

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