Overview
The Telemecanique LC1D25B7C is a 40A, 3-pole magnetic contactor from the TeSys Deca series (formerly TeSys D). It is an IEC contactor designed for motor control and power switching, offering proven reliability in industrial automation environments. The B7C suffix identifies the 24V DC coil voltage.
Key Features
- Dual Current Ratings: 25A AC-3 (motor duty) and 40A AC-1 (non-motor/resistive loads)
- Compact Frame: 45mm frame size for space-constrained control panels
- Built-in Auxiliary Contacts: Standard 1 N.O. and 1 N.C. auxiliary contact for signalling and interlocking
- Industrial Applications: Suitable for motor control and power switching in pumps, compressors, conveyors, HVAC equipment, and industrial control panels
- Proven Platform: TeSys Deca branding replaces the earlier TeSys D commercial name while retaining the established LC1D25 platform
Technical Specifications
- Poles: 3-pole
- Current Rating (AC-3, Motor): 25A
- Current Rating (AC-1, Resistive): 40A
- Coil Voltage: 24V DC
- Operating Voltage: 600V AC maximum
- Insulation Impulse Voltage (Uimp): 6 kV
- Frame Size: 45mm (TeSys D / Deca)
- Auxiliary Contacts: 1 N.O. + 1 N.C. (standard)
- Wire Gauge (Field Terminals): AWG 6–14 Cu, 75°C
- Terminal Torque: 20 lb-in
- Weight: ~380–450 g
- Standards: IEC/EN 60947-4-1, BS EN 60947-4-1, VDE 0660, NFC standards
Typical Applications
The LC1D25B7C is ideal for:
- Pump and compressor motor control
- Conveyor belt and material handling systems
- HVAC equipment switching
- Machine tool and production line control
- Industrial OEM control panels and switchgear assemblies
- General-purpose and fractional-horsepower motor starting
Compatibility & Replacements
Compatible With
- TeSys Deca / TeSys D motor control systems
- LC1D series auxiliary contact blocks and overload relay packages
- Standard 24V DC control circuits and PLC outputs
- IEC 60947-4-1 compliant motor control schemes
Replaces / Drop-In Replacement For
- Telemecanique / Schneider Electric LC1D25 base units (with 24V DC coil variants)
- Earlier TeSys D LC1D25 configurations
- Verify compatibility with your system integrator before ordering for legacy panel retrofits
Works With
- LC1D auxiliary contact blocks (front and side-mounted)
- Overload relays from the TeSys D / TeSys Deca family
- Standard soft-starter and drive integration circuits
- 24V DC control logic and relay control systems
- Industrial SCADA and PLC-based motor control schemes
