LS Contactor MC-40A

Description

Product Description The MC-40A is a heavy-duty industrial magnetic contactor. It acts as an electrically controlled switch used for turning a high-power electrical circuit on or off, protecting lower-power control switches (like a push-button or a PLC) from being damaged by high electrical currents. Key Technical Specifications Brand / Series: LS Electric / Metasol Model: MC-40A Number of Poles: 3-Pole (standard for 3-phase industrial power supply) Current Rating (AC-3): 40A (Its capacity for continuous operation with electric motors). Current Rating (AC-1): Up to 60A (For non-inductive resistive loads like heaters). Power Capacity: Typically rated for 3-phase motors up to 18.5 kW (approx. 25 Horsepower). Auxiliary Contacts: Built-in auxiliary contact configuration (usually 1NO + 1NC or 2NO + 2NC depending on the exact sub-model) to send signals back to a control panel. Coil Voltage: This depends on the specific variant you buy. The internal control coil can be powered by 24V DC, 110V AC, 230V AC, or 415V AC to close the main power contacts. Which Devices Does This Support? This is an industrial control component, meaning it does not plug into consumer devices like TVs, computers, or home appliances. Instead, it is installed inside electrical control panels to power and protect large equipment: 3-Phase Electric Motors: Used to start and stop heavy machinery motors, water pumps, exhaust fans, and conveyor belts. Industrial & Commercial HVAC Systems: Supports large central air conditioning units, industrial chillers, and large cooling tower fans. Heaters and Furnaces: Controls high-draw resistive heating elements in industrial ovens, kilns, or commercial water heaters. Lighting Automation: Switches large banks of stadium, factory, or street lighting where the total electrical load is too high for a normal wall switch. Elevator and Lift Systems: Controls the main hoisting motors and braking electromagnets. ⚠️ Important Replacement Tip: If you are buying this to replace a broken one, look closely at the small label on the side of your old unit to check the Coil Voltage (e.g., 230VAC 50/60Hz). You must match this coil voltage exactly, or the contactor will not trigger or will burn out instantly.