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Schneider Electric LX4FK075 — Contactor & Starter Coils

TeSys LX4FK075 Contactor Coil, 75 V DC, Obsolete

MPNLX4FK075
Obsolete

Schneider Electric TeSys F, contactor coil LX4FK075, 75 V DC, DC low consumption, obsolete.

Source DocumentedChannel stated on listing & quote
Condition PhotosReal unit photos / video on request
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Independent China distributor & sourcing agent· Listing updated Sep 2026

Specifications

LX4FK075 — Identification
ParameterValue
Product typeContactor coil
Product rangeTeSys
Device short nameLX4FK
Coil technologyWithout built-in suppressor module
LX4FK075 — Electrical
ParameterValue
Control circuit voltage [Uc]75 V DC
Control circuit typeDC low consumption
Control circuit voltage limitsDrop-out 0.2...0.35 Uc 131 °F (55 °C)) Operational 0.85...1.1 Uc 131 °F (55 °C))
Coil resistance (avg.)11.5 Ohm inrush 68 °F (20 °C) 2450 Ohm holding 68 °F (20 °C)
Coil inductance (closed circuit)280 H
LX4FK075 — Power & Thermal
ParameterValue
Inrush power (W)1100 W 68 °F (20 °C))
Hold-in power (W)6 W 68 °F (20 °C)
LX4FK075 — Performance & Durability
ParameterValue
Operating time45...60 ms opening 50...60 ms closing
Max. operating rate2400 cyc/h 131 °F (55 °C)
Mechanical durability10 Mcycles
LX4FK075 — Environmental
ParameterValue
Operating temperature23...131 °F (-5...55 °C)

Product details

The LX4FK075 is a replacement contactor coil from the Schneider Electric TeSys F range, designed for 75 V DC control circuits. It's a DC low-consumption coil without a built-in suppressor module, so you'll need to add external suppression if the circuit demands it. Rated for 75 V DC control voltage, with operational limits of 0.85...1.1 Uc at 131 °F (55 °C) and a drop-out threshold of 0.2...0.35 Uc. That means it reliably picks up above about 64 V and drops out below roughly 26 V, which is a wide hysteresis — good for noisy DC supplies. Opening time is 45...60 ms, closing time 50...60 ms. This is a workhorse coil for high-cycle applications like conveyor or pump contactors.

Inrush power is 1100 W at 68 °F (20 °C), dropping to 6 W holding power. The inrush resistance is 11.5 Ohm, holding resistance 2450 Ohm. Inductance of the closed circuit is 280 H — that's a high inductance, which limits inrush current once the magnetic circuit is closed. Operating temperature range is 23...131 °F (-5...55 °C). The coil technology is DC low consumption without a built-in suppressor module, so plan for external flyback diode or RC snubber if driving from a PLC output.

Frequently asked questions

What is the closest alternative to LX4FK075?

No official replacement or pin-compatible alternative is listed by the manufacturer. For a drop-in replacement, you would need to source new old stock (NOS) or a verified used part through the surplus channel.

What is the control voltage for this coil?

75 V DC. The operational range is 0.85...1.1 Uc (about 64 to 82.5 V DC) at 131 °F (55 °C), and it drops out between 0.2...0.35 Uc (about 15 to 26 V DC).

Does this coil have a built-in suppressor?

No, it is listed as 'without built-in suppressor module'. You will need to add external suppression (e.g., a flyback diode) to protect the control circuit from voltage spikes.

MPN
LX4FK075