The M-2379 is an adapter panel which, when combined with the M-2001 Series Digital Tapchanger Control, provides convenient direct replacement for the following Pennsylvania Transformer and McGraw-Edison LTC transformer controls manufactured before 1963: 110, 220, 220A, 550 and 550B.

• Connects easily to the M-2001 Series Digital Tapchanger Control using mounting screws and 24-pin connector
• Provides direct mechanical replacement of the existing LTC transformer control using the same two knurled knobs from the existing control
• Provides built-in CT shorting protection when the M-2001 Series Digital Tapchanger Control is removed