The TOCT1-100 modular contactor is an essential component for residential and light commercial electrical installations requiring reliable switching control. This 4-pole contactor features four normally open (4NO) contacts, providing versatile circuit management capabilities for complex electrical systems. Rated for 100A main circuit current and designed to operate at 230V 50/60Hz, this 3-phase device delivers robust performance for demanding applications. The compact DIN rail mounting design ensures straightforward installation in standard electrical enclosures while maximizing space efficiency. Each pole is clearly numbered for easy identification during wiring, and the unit's modular construction allows for seamless integration with other DIN rail components. Built to meet CE certification standards, this contactor offers dependable operation with specifications including 400V operational voltage and 500V insulation voltage. The TOCT1-100 is ideal for controlling heating systems, lighting circuits, motor loads, and other household AC applications where multiple circuits need simultaneous switching. Its durable housing protects internal components while maintaining accessibility to terminal connections for maintenance and troubleshooting.