Schneider Electric LT-4705-AE DC Contactor Coil

Schneider Electric’s Square D LT-4705-AE DC Contactor Coil is a legacy 57 VDC control coil used with Square D LT-series line-arc contactors. This new-old-stock coil is identified by the LT-4705-AE OEM number and is designed to energize from a 57-volt direct-current source to actuate the associated contactor. It is commonly used in motor starters and industrial control panels that rely on older Square D LT-series equipment, providing a genuine OEM replacement that preserves original performance characteristics. Availability appears in surplus catalogs and aftermarket listings under the Square D/Schneider Electric brand, reflecting its status as a vintage part that remains compatible with original Square D LT-series contactors. Some listings indicate a cross-reference to related coils such as LT-4706-AE, highlighting the part's role in a family of legacy coils that service older control systems. Because the LT-4705-AE is an OEM coil, it is often sought by engineers and technicians performing repairs or refurbishments of vintage Square D equipment to ensure coil performance matches original specifications.