Overview
The Telemecanique LC1-D633 is a three-pole industrial contactor designed to meet IEC 158-1 standards for reliable motor control and automation applications. With an 80A continuous current rating at 660V and AC3 switching capacity of 63A at 500V, this contactor handles heavy-duty motor loads across distribution, manufacturing, and process control systems. The included LAS-D22 A 65 auxiliary contact block provides additional control terminals for complex switching logic and interlock circuits.
Key Features
- Three-pole main contacts rated 80A continuous current, AC1 duty
- 660V insulation level with IEC 158-1 compliance
- AC3 capacity: 63A at 500V for motor-starting duty
- Auxiliary contact block (LAS-D22 A 65) for expanded control circuits
- Proven field reliability in industrial motor control applications
- Used condition; fully functional and suitable for replacement or retrofit installations
Technical Specifications
- Rated Insulation Voltage (Ui): 660V AC
- Main Contact Current (AC1): 80A continuous
- AC3 Motor Starting: 63A at 500V
- Thermal Current (Ith): 70A
- Auxiliary Contacts: LAS-D22 A 65 block included
- Standard: IEC 158-1, NF C 63-110, DE 0660, BS 5424
- Approx. Weight: 1.3 kg
- Mounting: Standard industrial control cabinet installation
Typical Applications
- Three-phase motor starting and stopping circuits
- Power distribution and load switching in industrial plants
- Machine tool control panels and automated production lines
- HVAC compressor and pump control systems
- Energy management and motor group control networks
- Retrofit and replacement in legacy automation systems
Compatibility & Replacements
Compatible With
- IEC 158-1 compliant control circuits and distribution panels
- Three-phase 50/60 Hz AC power systems rated 500V–660V
- Auxiliary contact blocks (LA-series: LA1-D, LAS-D family)
- Standard motor control relays and overload protection devices
- Conventional (non-networked) motor starter systems
Replaces / Drop-In Replacement For
- Other LC1-D633 contactor units (same base model, various coil voltages)
- Some equivalent LC1 contactors rated 63–80A AC3
- Verify coil voltage and auxiliary block compatibility before substitution
Works With
- Standard 24 VDC, 120 VAC, 220/240 VAC coil options (verify coil code on your unit)
- Interchangeable with IEC-standard soft starters and variable frequency drives when configured as main isolator
- Compatible with electromechanical timer relays and logic controls
- Industrial push-button stations and selector switches
