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Schneider Electric LX9FJ919 — Contactor & Starter Coils

TeSys LX9FJ919 Contactor Coil, 50-56 VDC / 57-62 VAC, Obsole

MPNLX9FJ919
Obsolete

Schneider Electric TeSys F series, LX9FJ919 specific contactor coil, 50-56 V DC / 57-62 V AC 40-400 Hz, 60 ms opening / 20 ms closing, obsolete.

Sourced new & surplus through independent channelsAuthenticity-screened · ESD-safe packingListing updated Jul 2026

Specifications

LX9FJ919 — Identification
ParameterValue
Product typeSpecific contactor coil
Product rangeTeSys
Device short nameLX9FJ
Coil technologyWithout built-in suppressor module
LX9FJ919 — Electrical
ParameterValue
Control circuit voltage [Uc]50...56 V DC 57...62 V AC 40...400 Hz
Control circuit typeAC 40...400 Hz low consumption DC low consumption
Control circuit voltage limitsOperational 0.85...1.1 Uc 131 °F (55 °C)) Drop-out 0.3...0.5 Uc 131 °F (55 °C))
LX9FJ919 — Power & Thermal
ParameterValue
Inrush power (VA)500 VA 40...400 Hz (at 68 °F (20 °C))
Hold-in power (VA)23 VA 40...400 Hz (at 68 °F (20 °C))
Heat dissipation11.4...13.9 W
LX9FJ919 — Performance & Durability
ParameterValue
Operating time60 ms opening 20 ms closing
Max. operating rate3600 cyc/h 158 °F (70 °C)
Mechanical durability10 Mcycles
LX9FJ919 — Environmental
ParameterValue
Operating temperature23...131 °F (-5...55 °C)

Product details

It is not a general-purpose coil; it is designed to drop into the F-frame contactor's magnetic circuit and is rated for the mechanical duty cycle of that platform.

Control voltage is 50...56 V DC or 57...62 V AC 40-400 Hz. The coil holds in at 0.85 to 1.1 Uc at 55 °C and drops out between 0.3 and 0.5 Uc. Opening time is 60 ms, closing 20 ms. That asymmetry is typical for a large-frame contactor where the spring force for break is stiffer than the magnetic pull-in. The 3600 cycles/hour maximum at 70 °C means it can follow a fast-pulsing load profile, but for continuous high-rate applications like a welding gun you would want to check thermal rise against the 11.4 to 13.9 W heat dissipation. Mechanical durability is 10 Mcycles — that is the life of the coil's own plunger and return spring, not the contactor's main contacts. In a typical motor-start application cycling a few times an hour, that translates to decades of service. No built-in suppressor module means the coil's magnetic field collapses without internal damping. For a 500 VA inrush coil, that can generate a significant inductive kickback spike. If the control circuit uses a PLC output or solid-state relay, an external flyback diode (DC) or RC snubber (AC) across the coil terminals is recommended — the contactor's own aux contacts do not supply that protection.

Deployment context

The coil is a plug-in replacement accessed by removing the contactor's arc chute and magnet assembly.

Frequently asked questions

Does this coil include a built-in surge suppressor?

No. Without built-in suppressor module means the coil does not have internal damping. An external flyback diode (DC) or RC snubber (AC) should be added if the control circuit uses solid-state outputs.

What are the opening and closing times?

Opening time is 60 ms, closing time is 20 ms. The mechanical durability is rated at 10 million cycles.

Which contactor family does LX9FJ919 belong to?

It is a specific coil for the TeSys F contactor range, the large-frame power contactor platform.

MPN
LX9FJ919