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Schneider Electric LUCL18ES — Motor Starters

Schneider TeSys Ultra LUCL18ES Magnetic Control Unit

MPNLUCL18ES
Obsolete

Schneider Electric TeSys Ultra magnetic control unit, LUCL18ES, 7.5 kW at 400 V AC, 48 V AC / 48-72 V DC control voltage, plug-in front face mounting.

Schneider Electric LUCL18ES datasheet (PDF)
Sourced new & surplus through independent channelsAuthenticity-screened · ESD-safe packingListing updated Jul 2026

Specifications

LUCL18ES — Mechanical & Connection
ParameterValue
Width45 mm
Height66 mm
Depth60 mm

Product details

The Schneider Electric TeSys Ultra LUCL18ES is a magnetic control unit designed for motor control and motor protection, specifically for protecting variable-speed drives or soft-start/soft-stop units. It mounts via a plug-in front face onto a compatible TeSys Ultra base, integrating into a DIN-rail panel layout. Rated for 7.5 kW at 400...440 V AC 50/60 Hz, 9 kW at 500 V AC, and 15 kW at 690 V AC. The control circuit operates on 48 V AC or 48...72 V DC. Compliance with EN/IEC 60947-6-2, UL 60947-4-1, and CSA C22.2 No 60947-4-1 (with phase barrier) means it meets the standards for motor-starter and controller combinations in North American and European panels. The IP20 front-panel protection keeps live terminals behind the enclosure door.

The utilisation categories AC-41 (resistive), AC-43 (motor starting, plugging, inching), and AC-44 (motor switching, frequent starts) define the load type this unit can switch. AC-43 and AC-44 are the relevant ones for motor duty — the unit is rated for the higher stress of frequent starting and reversing, not just steady-state running. The tripping threshold is 14.2 x Ir +/- 20%. Opening time is 35 ms; closing time is 60 ms. Rated insulation voltage (Ui) is 690 V per IEC 60947-6-2, 600 V per UL/CSA. Safe separation of circuits is maintained at 400 V SELV between control/auxiliary and main circuits.

Integration notes

The plug-in front-face design means the control unit can be swapped without disturbing the power wiring on the base, reducing downtime during a replacement. Heat dissipation is 3 W for the control circuit with either LUB32 or LUB38 coil — negligible for panel thermal budgeting. The unit is self-cooled (no external fan required), and the operating altitude is rated to 2000 m without derating. Vibration resistance is 2 gn (poles open) and 4 gn (poles closed) across 5...300 Hz per IEC 60068-2-6. Shock resistance is 10 gn (poles open) and 15 gn (poles closed) per IEC 60068-2-27. These ratings confirm it holds up on a machine-mounted panel subject to normal industrial vibration.

Frequently asked questions

What are the specifications of LUCL18ES?

The LUCL18ES is a TeSys Ultra magnetic control unit rated for 7.5 kW at 400 V AC, 9 kW at 500 V AC, and 15 kW at 690 V AC. Control voltage is 48 V AC or 48...72 V DC. It measures 45 x 66 x 60 mm and mounts via plug-in front face. Standards include EN/IEC 60947-6-2, UL 60947-4-1, and CSA C22.2 No 60947-4-1.

Is LUCL18ES compatible with TeSys Ultra bases?

Yes, the LUCL18ES is designed to plug into a compatible TeSys Ultra base. The plug-in front-face fixing mode allows it to be mounted and removed without disturbing the base wiring.

What is the difference between LUCL18ES and LUCL18FS?

The LUCL18ES and LUCL18FS are both TeSys Ultra magnetic control units. The primary difference is the control circuit voltage: the LUCL18ES operates on 48 V AC / 48-72 V DC, while the LUCL18FS uses a different coil voltage. Verify the coil voltage on your existing unit before ordering a replacement.

MPN
LUCL18ES