Schneider Electric LC1DT40M7 TeSys D Contactor – 40A, 440V AC-1, 220V AC Coil
The Schneider Electric LC1DT40M7 TeSys D Contactor is a 4-pole (4NO) contactor designed primarily for AC-1 resistive-load applications, rated at 40A at up to 440V AC. It features a 220V AC 50/60Hz control coil, 1NO + 1NC auxiliary contacts, and screw-clamp terminals, making it suitable for industrial control panels, HVAC systems, heating equipment, resistive loads, and electrical switching applications.
Description
The Schneider Electric LC1DT40M7 TeSys D Contactor is a robust 4-pole contactor from the TeSys D / TeSys Deca range, designed for reliable switching of resistive and non-inductive loads in industrial and commercial electrical systems.
The LC1DT40M7 features 4 normally open (4NO) main contacts and is rated at 40A under AC-1 utilization at up to 440V AC. This makes it particularly suitable for applications involving resistive loads, rather than being primarily selected for high-current motor switching. Schneider Electric specifies the product for industrial and HVAC applications.
The contactor is equipped with a 220V AC control coil operating at 50/60Hz, allowing it to be integrated into standard industrial control circuits. Its power circuit can operate at up to 690V AC 25–400Hz or 300V DC, subject to the applicable electrical conditions and ratings.
The LC1DT40M7 also includes 1NO + 1NC auxiliary contacts, providing additional contacts for control logic, feedback, signaling, interlocking, and contactor status monitoring.
For installation, the contactor uses screw-clamp terminals and supports DIN-rail or screw fixing, providing flexibility when installing the device in electrical control cabinets and automation panels. Its TeSys D design is intended to simplify installation and provide dependable switching performance.
The Schneider LC1DT40M7 is suitable for industrial automation, HVAC control, heating systems, lighting and resistive-load control, electrical distribution panels, and general low-voltage switching applications.
| Specification | Details |
|---|---|
| Manufacturer | Schneider Electric |
| Product Range | TeSys D / TeSys Deca |
| Model / Official Reference | LC1DT40M7 |
| Electrical Junction Listed Reference | LC1DT40AM7 |
| SKU | MAS03032LC1DT40AM7 |
| Product Type | Contactor |
| Number of Poles | 4P |
| Main Contact Composition | 4 NO |
| Utilization Category | AC-1 |
| Rated Current – AC-1 | 40A at ≤440V AC |
| Control Coil Voltage | 220V AC |
| Control Coil Frequency | 50/60Hz |
| Rated Operational Voltage | ≤690V AC, 25–400Hz |
| Rated DC Operational Voltage | ≤300V DC |
| Auxiliary Contacts | 1 NO + 1 NC |
| Rated Impulse Withstand Voltage | 6kV |
| Overvoltage Category | III |
| Thermal Current – Power Circuit | 40A at ≤60°C |
| Thermal Current – Signalling Circuit | 10A at 60°C |
| Rated Making Capacity | 450A at 440V AC |
| Rated Breaking Capacity | 450A at 440V AC |
| Mounting | DIN rail / screw fixing |
| Terminal Type | Screw-clamp terminals |
| Operating Temperature | -5°C to +60°C |
| Maximum Operating Rate | Up to 3600 cycles/hour |
| Mechanical Durability | Up to 15 million cycles |
| Standards | IEC/EN 60947-4-1, IEC/EN 60947-5-1, UL 508, CSA C22.2 No. 14 |
| Certifications | UL, CSA, CCC, EAC, BV, DNV, RINA, GOST, LROS, GL |
| Mercury Free | Yes |
| RoHS | Compliant |
| Weight | Approximately 0.4–0.47kg, depending on documentation/variant |
Key Features
- 40A AC-1 rated current
- 4-pole (4NO) main contacts
- 220V AC 50/60Hz control coil
- Rated up to 440V AC for AC-1 applications
- Power circuit voltage up to 690V AC
- 1NO + 1NC auxiliary contacts
- 6kV impulse withstand voltage
- Suitable for resistive and non-inductive loads
- Screw-clamp terminals
- Supports DIN-rail or screw mounting
- Suitable for industrial and HVAC applications
- Up to 3600 operating cycles/hour
- High mechanical durability
- Multiple international certifications
- Mercury-free
- RoHS compliant
- Compact TeSys D / TeSys Deca design
Applications
The Schneider Electric LC1DT40M7 is suitable for:
- Resistive load switching
- Industrial heating systems
- HVAC control panels
- Electrical heating equipment
- Industrial automation
- Control panels
- Electrical distribution systems
- Lighting control
- Commercial electrical systems
- Industrial machinery
- Process-control systems
- Non-inductive load switching
- Building automation
- Electrical panel switching applications
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