Overview
The Telemecanique CA2-DN122 is a 10-ampere, 4-pole control relay module designed for motor overload protection and control circuit applications. Paired with the LR1-D09 308 thermal overload unit, this assembly provides reliable trip protection for three-phase motors and variable load systems common in industrial manufacturing, pumping stations, and process automation. The relay meets IEC 255 international safety standards and features screw clamp termination for dependable field wiring.
Key Features
- 10-ampere thermal current rating with 660V maximum insulation voltage
- 4-pole contact configuration (2NO+2NC contacts)
- Screw clamp terminal design prevents accidental wire loosening
- IEC 255 and NF C45250 international standards compliance
- Modular design allows LR1-D09 308 thermal unit attachment
- Suitable for 50Hz and 60Hz AC control circuits
Technical Specifications
- Thermal Current (ITH): 10 A
- Maximum Voltage Rating: 600V (500V~ rated)
- Pole Configuration: 4-pole (2NO + 2NC)
- Contact Material: Silver-cadmium alloy (standard for IEC relays)
- Termination Type: Screw Clamp
- Operating Frequency: 50 Hz / 60 Hz AC
- Weight: 0.68 lbs (approximately 320 grams)
- Standards: IEC 255, NF C45250, BS 5424, VDE 0660
- Status: Discontinued by manufacturer
- Thermal Unit: LR1-D09 308
Typical Applications
- Three-phase motor protection circuits
- Pump motor control and overload management
- HVAC compressor and fan motor starters
- Industrial textile machinery control
- Food processing and packaging equipment
- Variable load protection in legacy automation systems
Compatibility & Replacements
Compatible With
- Telemecanique/Schneider Electric motor starters and contactors
- Control circuits rated for 600V maximum
- Three-phase induction motors
- 50 Hz and 60 Hz AC power systems
- Direct-on-line (DOL) motor starting configurations
Replaces / Drop-In Replacement For
Verify compatibility with your system integrator before ordering, as this discontinued relay may require field validation for drop-in compatibility. The CA2-DN122 was used alongside other Telemecanique control relay modules in legacy motor control centers.
Works With
- LR-series thermal overload units (LR1-D09 308 as specified)
- Telemecanique LA-series auxiliary contact blocks
- Schneider Electric motor starter assemblies
- Standard 24V DC and 120V AC coil supplies (coil sold separately)
