There are two choices when replacing the 3RT1016-1AK62: Stay with the same series but upgrade to a higher AMP rating (will work in any existing application) or change to the new 3RT2 series (any existing direct mounted accessories would need to be replaced, if any). Comparison of both options are listed below. Click on either image to purchase.
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3RT1017-1AK62
3RT2016-1AK62
Pros:
Same style as current model, uses same accessories (auxiliary contacts, overload relays, etc.)
Rated higher so potential for longer lifespan
Will work in current application
Cons:
Limited accessories available (overload relays, auxiliary contacts)
More expensive than upgrading to new series
Pros:
Newest style, full range of accessories available (auxiliary contacts, overload relays, etc.)
Less expensive than upgrading to higher rated model in existing series
Same physical size as existing unit
Cons:
Must replace any existing accessories (if any) that were physically attached to this unit