Schneider Electric LC1D50M7C AC Contactor – TeSys D Series Motor Control Spare Part

Technical Dossier

Product Details And Specifications

Schneider Electric LC1D50M7C AC Contactor – TeSys D Series Motor Control Spare Part

A motor control panel failure does not announce itself. When an LC1D50M7C contactor fails mid-production, the downstream consequences are immediate: conveyor lines stop, compressors trip, HVAC systems shut down. Sourcing a replacement through standard distribution channels can take days or weeks. For facilities running continuous operations, that delay translates directly into production loss, penalty clauses, and emergency engineering costs that dwarf the price of a single contactor. DriveKNMS maintains RFQ-reviewed sourcing status of the LC1D50M7C specifically to eliminate that gap.

Technical Specifications

The LC1D50M7C is a workhorse component embedded in motor control centers (MCCs), pump stations, HVAC control panels, and conveyor drive systems across industries. Its 50 A AC-3 rating and 220 V coil configuration make it one of the most widely specified contactors in mid-range motor applications globally.

Maintenance managers operating aging MCC panels — particularly those built around Schneider Electric's TeSys D platform from the 1990s through 2010s — face an additional constraint: panel layouts and wiring schemes are engineered around specific contactor footprints. Substituting a different frame size or coil voltage requires rewiring, re-labeling, and in some jurisdictions, re-certification. The LC1D50M7C eliminates that engineering overhead entirely. It drops in where the original was installed, with no modifications required.

Condition & Reliability Assurance

Every LC1D50M7C unit shipped by DriveKNMS passes a structured inspection protocol before dispatch:

• Visual and mechanical inspection: Housing integrity, contact carrier movement, arc chute condition, and terminal block thread condition are checked against OEM tolerances.
• Coil resistance verification: Coil resistance is measured and compared against the published M7 coil specification to confirm the electromagnetic circuit is intact.
• Contact resistance check: Main contact resistance is measured to identify any contact surface degradation that would cause excessive heat under load.
• Auxiliary contact function test: The integrated 1 NO / 1 NC auxiliary block is cycled and verified for correct switching logic.
• Packaging and ESD protection: Units are individually packaged to prevent transit damage and electrostatic discharge to the coil circuit.

Units are supplied as new-in-box (NIB) where available. Reconditioned units, where applicable, are clearly identified and priced accordingly. No unit is shipped without passing all five inspection steps.

Key Features for Panel Maintenance

• Drop-in replacement: Identical footprint and terminal layout to all LC1D50M7C units produced under the TeSys D platform. No panel modifications required.
• No re-programming required: The LC1D50M7C is a purely electromechanical device. Replacement requires only correct wiring reconnection — no PLC parameter changes, no drive configuration updates.
• Coil voltage compatibility: The M7 coil (220 V AC) is the most common coil voltage in 50 Hz industrial control circuits across Europe, Asia, and the Middle East. Verify your control circuit voltage before ordering.
• Broad system compatibility: Commonly installed in panels controlled by Schneider Electric Modicon PLCs, Siemens S7 series, and Allen-Bradley ControlLogix systems, among others. The contactor itself is PLC-agnostic.
• Avoids engineering rework costs: Substituting a non-identical contactor in a certified panel can trigger re-engineering and re-certification requirements. Using the correct part number eliminates that risk entirely.

Q: How are RFQ terms confirmed?
A: Quantity, required condition, documentation needs, destination and sourcing route are confirmed during RFQ review before quotation.

How do I confirm the unit is genuine Schneider Electric?
All new-in-box units are supplied with original Schneider Electric packaging and labeling. Customers may verify authenticity via Schneider Electric's product verification tools using the unit's serial number. We do not supply counterfeit or unbranded substitutes.

Do you supply other TeSys D series contactors?
Yes. DriveKNMS stocks a range of TeSys D series contactors across multiple current ratings and coil voltages. Contact us with your full bill of materials for a consolidated quote.