Schneider Electric 8536-SC03 3-Phase Contactor

Square D 8536-SC03 is a NEMA Size 1, 3-pole Type S motor starter/contactor designed to start and stop three-phase motors in indoor control panels. It is rated for up to 600 V AC on the line and uses a 110–120 V AC coil, coil assembly 31041-400-42. This 8536-SC03 provides three switching contacts in a compact form factor suitable for light- to medium-duty motor control in equipment such as conveyors, pumps, fans, or HVAC systems where reliable switching is required. The enclosure is NEMA 1 rated, offering protection for indoor installations, and it aligns with standard Square D replacement parts for maintenance and servicing. Its three-pole arrangement ensures simultaneous switching of all three phases, helping to maintain motor performance and reduce electrical interference in typical industrial control panels. The 8536 family, including SC03 variants, is commonly used in factory automation and equipment control where a durable, field-serviceable mains switch is needed.