TBC TCT-440 4-Pole Modular AC Contactor 40A 400V

Electrical Performance: The TCT-440 is rated for 40A operational current at 400V AC, with a rated insulation voltage of 500V AC ensuring adequate electrical isolation. The contactor operates on a 230V AC control coil at 50/60 Hz frequency, making it compatible with standard control circuits worldwide.

Contact Configuration: The 4-pole design provides four normally open (NO) main contacts, each capable of handling the rated current. Contacts are designated as terminals 1-2, 3-4, 5-6, and 7-8, allowing for flexible wiring configurations for three-phase plus neutral or multiple independent circuits.

Control Circuit: The electromagnetic coil is connected via terminals A1 and A2. When energized with 230V AC, the coil closes all four main contacts simultaneously. Upon de-energization, spring mechanisms return the contacts to their open position, ensuring fail-safe operation.

Mechanical Design: The contactor features a robust thermoplastic housing with flame-retardant properties, measuring 85mm (H) × 72mm (W) × 68mm (D). The unit mounts securely on standard 35mm DIN rail, occupying 4 modular spaces. The IP20 protection rating provides protection against solid objects larger than 12.5mm, suitable for installation within enclosed distribution boards.

Utilization Category: Rated for AC-7a category, the TCT-440 is optimized for switching resistive loads such as lighting circuits, heating elements, and similar applications. It can also be used for motor control applications when combined with appropriate overload protection devices.

Standards Compliance: Manufactured in accordance with IEC/EN 61095 standards for contactors and motor-starters, the TCT-440 meets international safety and performance requirements. CE marking confirms conformity with European Union directives for electrical equipment.

Important Note: This contactor provides switching control only and does not include built-in overcurrent or short-circuit protection. It must always be used in conjunction with appropriate protective devices such as miniature circuit breakers (MCB), molded case circuit breakers (MCCB), or earth leakage circuit breakers (ELCB) according to the specific application requirements and local electrical codes.

• Three-Phase Lighting Control: Centralized switching of large lighting installations in commercial buildings, warehouses, parking facilities, and outdoor area lighting
• HVAC Systems: Remote control of air-conditioning units, ventilation fans, and climate control equipment in commercial and industrial facilities
• Water Pumps and Motors: Automatic and remote switching of pump motors for water supply, irrigation, drainage, and industrial process applications
• Commercial Control Panels: Integration into building management systems for automated control of multiple electrical circuits
• Industrial Automation: Machine control, production line equipment switching, and process automation applications
• Building Automation Systems: Integration with BMS for scheduled operation, energy management, and centralized control of building services
• Heating Systems: Control of electric heating elements, boilers, and thermal management equipment
• Agricultural Applications: Automated control of irrigation pumps, ventilation systems, and farm equipment
• Retail and Hospitality: Centralized lighting and equipment control in shopping centers, hotels, and restaurants
• Sports and Recreation Facilities: Control of field lighting, pool equipment, and facility management systems