The E996L uses a solenoid. It is field selectable (via solenoid orientation) for fail safe or fail secure operation. It is only available with a 24VDC solenoid. It is obsolete and replaced by the M996 kit. See price book.
The M996L uses a motor. It is field selectable (via switch) for fail safe or fail secure operation as well as 12VDC or 24VDC.
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