Provides positive internal safety lockout on electrical enclosures while the equipment is energized. Catalog numbers AE K115, AE K230 and AE K460 are used with standard HOFFMAN door latching mechanisms. When energized, these interlocks prevent the door handle from being turned to open the door. The interlock fits either clockwise or counterclockwise handles in the following enclosures: 1. All two-door Type 4 and 12 enclosures 2. All Type 4X with 3-point latch enclosures 3. Free-stand Type 12 enclosures 4. All single-door Type 12 enclosures with latch kits installed 12 enclosures 4. Larger sizes of junction boxes 5. Type 1 and large Type 1 enclosures The aforementioned interlocks also fit in most HOFFMAN custom enclosures and boxes which have doors or covers hinged similar to doors or covers on the preceding enclosures.