Overview
The Telemecanique LA1-D40-A65 is a clip-on auxiliary contact block providing four normally-open contacts for integration with TeSys D and compatible contactor families. This add-on module expands the control circuit capability of LC1-D40, LP1-D40, and CA2-D series contactors without requiring a replacement unit. Ideal for motor control, HVAC systems, conveyor controls, and industrial automation where additional signaling and interlock circuits are needed.
Key Features
- Four normally-open (4NO) contact configuration for flexible circuit design
- 10A rated capacity at 500VAC resistive load (standard industrial voltage)
- Direct clip-on mounting—no soldering or complex wiring required
- Field-replaceable module compatible with Telemecanique TeSys D contactors
- Compact footprint integrates seamlessly into existing DIN rail enclosures
- Factory-sealed contacts ensure long mechanical and electrical life
Technical Specifications
- Contact Configuration: 4 Pole 4 Normally-Open (4PST-4NO)
- Rated Current (Resistive Load): 10A at 500VAC
- Contact Rating: 500VAC nominal (per IEC 60947 standards)
- Mounting Style: Clip-on (front or side mount to contactor)
- Coil Compatibility: Mechanical, no coil required (passive contact block)
- Weight: 51 grams (0.051 kg)
- Operating Temperature: Industrial standard -25°C to +55°C
- Certifications: IEC 60947, UL listed for use on compatible contactors
Typical Applications
The LA1-D40-A65 is commonly deployed in:
- Motor Control Circuits: Start/stop interlocking, run indication lights
- HVAC Systems: Compressor enable signals, fan/heater sequencing
- Conveyor & Material Handling: Position feedback, emergency stop circuits
- Pump Control: Pressure/temperature alarms, overload signaling
- Machine Tools: Spindle enable, cutting fluid coolant control
Compatibility & Replacements
Compatible With
- Telemecanique LC1-D09 through LC1-D95 contactor series
- Telemecanique LP1-D12 through LP1-D80 reversing contactor series
- Schneider Electric TeSys D contactors (heritage Telemecanique)
- CA2-D series contactors (mechanical-only compatibility)
- Standard 35mm DIN rail enclosures with contactor-mounted terminal blocks
Replaces / Drop-In Replacement For
The LA1-D40-A65 is a direct replacement for any previous LA1-D40 or LA1D40 variant carrying the A65 mechanical suffix. This block is NOT interchangeable with:
- LA1-DN40 (different coil interface)
- LA1-D11, LA1-D20, LA1-D02 (different contact counts)
- LA1-D31, LA1-D04, LA1-D22 (different NO/NC ratios)
For application-specific cross-references or older legacy part numbers, verify compatibility with your system integrator before ordering.
Works With
- Telemecanique/Schneider Electric TeSys D control ecosystem
- IEC 60947 (Low Voltage Switchgear) compliant circuits
- Standard industrial AC motor control (24V–600V control voltages)
- No PLC or HMI software integration required—hardwired relay logic
- Compatible with traditional contactor-based plant control schemes
