TBC TCT-425 4-Pole Modular AC Contactor 25A 230V Coil

Electrical Performance:

The TCT-425 is rated for a maximum operational current (Ie) of 25 amperes at 400V AC, making it suitable for controlling loads up to approximately 17kW in three-phase configurations. The rated insulation voltage (Ui) of 500V AC provides adequate safety margin for standard 400V systems. The contactor operates with a 230V AC control coil at 50/60 Hz frequency, drawing minimal power during operation.

Contact Configuration:

The 4-pole design features four normally open (NO) main contacts, each capable of carrying the full rated current. The contacts are arranged in pairs with terminals numbered 1-2, 3-4, 5-6, and 7-8. The control coil terminals are designated A1 and A2. All contacts switch simultaneously when the coil is energized, providing synchronized control of multiple circuits or phases.

Mechanical Construction:

The contactor housing is manufactured from flame-retardant thermoplastic material that meets UL94 standards for fire safety. Overall dimensions are 85mm height × 72mm width × 68mm depth, with a mounting width of 54mm (4 standard modules). The unit snaps securely onto standard 35mm DIN rails (EN 60715) for tool-free installation and removal.

Environmental & Protection:

With an IP20 protection rating, the TCT-425 is designed for installation within enclosed distribution boards and control panels where protection from solid objects larger than 12.5mm is provided by the enclosure. Operating temperature range is typically -5°C to +40°C ambient, with altitude compensation required above 2000m.

Standards Compliance:

Manufactured in accordance with IEC/EN 61095 (Electromechanical contactors for household and similar purposes), the TCT-425 meets all relevant safety, performance, and electromagnetic compatibility requirements. CE marking confirms conformity with applicable European directives.

• 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, heating systems, and climate control equipment
• Water Pumps: Automatic and manual control of water pumps, irrigation systems, and fluid transfer equipment
• Motor Control: Switching control for small motors in conveyor systems, industrial machinery, and automated equipment (when used with appropriate motor protection)
• Industrial Automation Panels: Integration into PLC-controlled systems, building management systems (BMS), and automated manufacturing processes
• Commercial Distribution Boards: Load switching in retail spaces, office buildings, hotels, and shopping centers
• Residential Distribution: High-current circuit control in large residential properties, apartment complexes, and multi-dwelling units
• Agricultural Applications: Control of irrigation pumps, ventilation systems, and automated feeding equipment in farming operations
• Street Lighting: Centralized control of outdoor lighting networks with time-clock or photocell activation
• Emergency Systems: Switching control for backup generators, emergency lighting circuits, and standby power systems