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Schneider Electric LX1LD040 — Contactor & Starter Coils

TeSys LX1LD040 Coil, 48 V AC 60 Hz, Obsolete

MPNLX1LD040
Obsolete

TeSys Integral replacement coil, LX1LD040, 48 V AC 60 Hz control circuit, 0.845 Ohm coil resistance, 420-500 VA inrush.

Schneider Electric LX1LD040 datasheet (PDF)
Sourced new & surplus through independent channelsAuthenticity-screened · ESD-safe packingListing updated Jul 2026

Specifications

LX1LD040 — Identification
ParameterValue
Product typeCoil
Product rangeTeSys
Device short nameLX1
LX1LD040 — Electrical
ParameterValue
Control circuit voltage [Uc]48 V AC 60 Hz
Control circuit typeAC 60 Hz
Control circuit voltage limitsOperational: 0.85...1.1 Uc (at Drop-out: 0.25...0.7 Uc (at <131 °F (55 °C))
Coil resistance (avg.)0.845 Ohm 68 °F (20 °C)
Coil inductance (closed circuit)0.106 H
LX1LD040 — Power & Thermal
ParameterValue
Inrush power (VA)420...500 VA 60 Hz cos phi 0.55
Hold-in power (VA)24...36 VA 60 Hz cos phi 0.28

Product details

The LX1LD040 is a replacement coil for the TeSys Integral series of contactors and motor starters. It is a 48 V AC 60 Hz control circuit coil. The coil draws 420-500 VA inrush at 60 Hz with a 0.55 power factor, then settles to 24-36 VA hold-in power at 0.28 power factor. Coil resistance is 0.845 Ohm at 68 °F (20 °C). This is a low-resistance winding for a 48 V AC coil, consistent with the high inrush current. The inductance of the closed circuit is 0.106 H, which governs the magnetic latching once the armature seats.

Control voltage limits and operating window

The coil operates between 0.85 and 1.1 times the rated control voltage (Uc) at up to 131 °F (55 °C). Drop-out occurs between 0.25 and 0.7 Uc.

Frequently asked questions

What is the closest alternative to LX1LD040?

The manufacturer does not list a direct successor order code for this coil. The closest alternative would be another 48 V AC 60 Hz coil from the TeSys Integral family, but you must verify physical compatibility — same mounting footprint, same terminal arrangement, same coil power draw — against your existing contactor before ordering.

What is the TeSys range?

The LX1LD040 belongs to the TeSys range, Schneider Electric's line of contactors, motor starters, and control relays for industrial motor control and power switching applications.

What is the category 18402-WORLD SERVICE PARTS?

Category 18402-WORLD SERVICE PARTS (CONTROL ACCESS) indicates this coil was originally classified as a service/replacement part for existing TeSys Integral installations, not a new-production component for new designs.

MPN
LX1LD040