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Allen Bradley 500 Contactors 500LG-840A1-M3120

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500LG-840A1-M3120

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The 500LG-840A1-M3120 is a lighting contactor from Allen Bradley's 500 series. Rated for a maximum voltage of 600V AC, it is designed for continuous duty cycle applications, specifically in lighting control tasks.

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Not an Authorized Distributor: DO Supply is not an authorized distributor for listed manufacturers or tradenames and therefore the manufacturer's warranty does not apply. All of our products come with DO Supply's 2-year warranty.
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Rockwell Disclaimer: The product is used surplus. DO Supply is not an authorized surplus dealer or affiliate for the Manufacturer of this product. The product may have older date codes or be an older series than that available direct from the factory or authorized dealers. Because DO Supply is not an authorized distributor of this product, the Original Manufacturer's warranty does not apply. While many Allen-Bradley PLC products will have firmware already installed, DO Supply makes no representation as to whether a PLC product will or will not have firmware and, if it does have firmware, whether the firmware is the revision level that you need for your application. DO Supply also makes no representations as to your ability or right to download or otherwise obtain firmware for the product from Rockwell, its distributors, or any other source. DO Supply also makes no representations as to your right to install any such firmware on the product. DO Supply will not obtain or supply firmware on your behalf. It is your obligation to comply with the terms of any End-User License Agreement or similar document related to obtaining or installing firmware.

Technical specifications for 500LG-840A1-M3120

ManufacturerAllen Bradley
Product TypeLighting Contactor
Product Line500 Contactors
Part Number500LG-840A1-M3120
Weight1.00 lbs (0.45 kg)
UPC612598598670
Voltage Rating600V AC max
Control Type3-Wire
Coil Voltage110V 50Hz / 115–120V 60Hz
Number of Normally Open Contacts (NO)8 N.O.
Wiring StyleTop Wired
Frequency50/60 Hz
Contactor TypeMechanically Held
Number of Normally Closed Contacts (NC)5 N.C.
EnclosureOpen Type
Mounting StylePanel/Open
Duty CycleContinuous
ApplicationLighting Control
Insulation ClassClass B
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The Allen Bradley 500LG-840A1-M3120 serves as a dedicated lighting contactor, offering a robust solution for managing lighting systems. This unit is specified for use at a maximum voltage of 600V AC, making it suitable for a variety of high-power lighting applications. It employs a control mechanism utilizing three wires and requires a coil voltage of 110V at 50Hz or 115–120V at 60Hz to operate efficiently.

In terms of contact configuration, the contactor features 8 normally open contacts (N.O.), allowing for effective operation across multiple lighting circuits. Additionally, it includes 5 normally closed contacts (N.C.), enabling versatility for different control scenarios. Its top-wired setup simplifies the installation process, permitting compatibility with various mounting styles, whether panel-mounted or placed in open settings.

Operating for an extended duration, this model is designed for a continuous duty cycle, ensuring unwavering performance in consistent operational environments. The open type enclosure allows for ventilation, facilitating heat dissipation. Lastly, the insulation class is rated as Class B, ensuring adequate protection against thermal stress under normal operating conditions.