LS Contactor MC-18 30A

Description

Product Description The MC-18B is an industrial-grade, 3-pole magnetic contactor. It acts as an electrically operated heavy-duty switch, allowing a low-power control signal (like a push-button or thermostat) to safe-switch a much higher, dangerous electrical load on and off. Key Technical Specifications Brand / Series: LS Electric (formerly LG Industrial Systems) / Metasol Model: MC-18B (or MC-18A) Number of Poles: 3-Pole (Standard for 3-phase power circuits) Current Rating (AC-3): 18A (This is its maximum continuous running current for handling electric motors). Current Rating (AC-1 / Resistive): Up to 32A or 40A (For non-inductive loads like heating elements). Power Capacity: Rated for 3-phase motors up to roughly 7.5 kW (approx. 10 Horsepower) at 400V/440V. Auxiliary Contacts: Built-in auxiliary contact configuration (typically 1NO + 1NC) used to wire indicator lights or link up control logic. Coil Voltage: This depends entirely on the specific variant. The magnetic coil that pulls the switch shut comes in 24V AC/DC, 120V AC, 230V AC, or 415V AC configurations. Which Devices Does This Support? Because this is a dedicated industrial control component, it is not meant for direct use with personal consumer electronics (like computers or phones). Instead, it is installed inside control panels to power and protect mid-sized electrical machinery: Electric Motors & Pumps: Commonly used to start and stop three-phase industrial water pumps, exhaust fans, conveyor belts, and small air compressors. Commercial HVAC Units: Controls power routing to commercial air conditioning fans, blowers, and medium-sized refrigeration compressors. Heating Banks: Safely switches resistive heating elements used in industrial ovens, packaging heat sealers, or water heaters. Lighting Systems: Automates heavy banks of high-intensity discharge (HID) or LED floodlights in parking lots, warehouses, or sports facilities. ⚠️ Important Note for Replacement: If you are buying this to replace an existing unit, always check the exact voltage printed directly on the coil (often visible on the side or bottom of the housing). For example, your current search shows a 120V AC coil model—you must match this control voltage exactly to avoid destroying the new unit or preventing it from turning on.