Frequently Asked Questions
All models and all serial numbers
Customer was looking for purchasing the LH4N112RT7.
No, the LH4N soft starter is obsolete. Please replace with the appropriate ATS01 or ATS22 soft starter. Consider application needs and features of currently-offered products.
Customer wants to know when the LH4N soft starts became obsolete
The LH4N became obsolete in January 2005. The current replacement product for form, fit and function is the ATS01 soft start series. Customers should still review the product ratings and dimensions before ordering.
The Installation Manuals for the LH4N and the ATS01 are attached.