Professional 75A 3-pole motor contactor with DC actuation, 37kW capacity at 415V, 2NO+2NC auxiliary contacts, 12M mechanical operations, IEC 60947-4-1 compliant for industrial applications.
The Legrand CTX³ is a professional-grade 3-pole motor contactor designed for tertiary and industrial installations. With a 75A AC-3 rating capable of switching 3-phase motors up to 37 kW at 415V, this contactor provides reliable performance for demanding applications. The device features modular screw connections, DC voltage actuation (20.4-26.4V), and comes equipped with 2 normally open (NO) and 2 normally closed (NC) auxiliary contacts that meet IEC 60947-4-1 standards.
This contactor is engineered for exceptional durability with up to 12 million mechanical operations and 2 million electrical operations, ensuring long service life in industrial environments. The cage terminals accommodate power connections from 2.5mm² to 70mm² (single) or 2.5mm² to 50mm² (dual), with coil and auxiliary circuit terminals supporting 0.75mm² to 2.5mm². The removable front cover allows for easy visual inspection of arc chambers and contacts, while the compact design optimizes cabinet space utilization.
Built to the highest environmental standards, the CTX³ complies with substance-restriction requirements and is designed through environmentally conscious processes. The coil supply can be positioned either on the top or bottom side, providing installation flexibility. Compatible with all Legrand CTX3 auxiliaries and accessories, this contactor is ideal for switching both inductive and non-inductive loads with maximum reliability and efficiency.
Key Features
- 75A AC-3 rating for 3-phase motors up to 37kW at 415V with 110A AC-1 resistive load capability
- 2 normally open and 2 normally closed auxiliary contacts meeting IEC 60947-4-1 standards
- DC voltage actuation with 20.4-26.4V control supply range for reliable operation
- 12 million mechanical operations and 2 million electrical operations for extended service life
- Modular screw connections with cage terminals supporting 2.5mm² to 70mm² power connections
- Removable front cover for easy inspection of arc chambers and contact condition
- Flexible coil supply positioning on top or bottom side for installation convenience
- Compatible with all Legrand CTX3 auxiliaries and accessories for system expansion
- Compact design optimizes cabinet space utilization in industrial installations
- Environmentally conscious manufacturing with RoHS and REACH compliance
Technical Specifications
| Specification |
Value |
| Product Type | 3-Pole Motor Contactor |
| Rated Current AC-3 (400V) | 75A |
| Rated Current AC-1 (400V) | 110A |
| Rated Power AC-3 (400V) | 37 kW |
| Rated Power AC-4 (400V) | 25 kW |
| Rated Current AC-4 (400V) | 52A |
| Control Supply Voltage | DC 20.4-26.4V |
| Voltage Type | DC (Direct Current) |
| Main Contacts Configuration | 3 Normally Open (3NO), 0 Normally Closed |
| Auxiliary Contacts | 2 Normally Open (2NO) + 2 Normally Closed (2NC) |
| Mechanical Operations | 12 Million cycles |
| Electrical Operations | 2 Million cycles |
| Operations Per Hour (AC-3) | 1800 cycles |
| Connection Type | Modular Screw Connection |
| Power Terminal Capacity | Single: 2.5mm² to 70mm², Dual: 2.5mm² to 50mm² |
| Coil Terminal Capacity | 0.75mm² to 2.5mm² |
| Auxiliary Circuit Terminal Capacity | 0.75mm² to 2.5mm² |
| Standard Compliance | IEC 60947-4-1 |
| Mounting | 35mm Top Hat Rail (IEC 60715) or Mounting Plate |
| Reference Number | 416191 |
| EAN Code | 3414970401663 |
| Carbon Footprint (Manufacturing) | 23.75 kg CO₂ eq. |
| Environmental Compliance | RoHS Directive, REACH Declaration |
| Suitable for Distribution Board | Yes |
| Application | Tertiary and Industrial Installations |
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