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Allen Bradley 156 Contactors 156-B20CA3

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156-B20CA3

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The 156-B20CA3 from Allen Bradley is a three-phase solid-state contactor designed for precise control of electrical loads at 600 V AC. Rated for a maximum current of 20.0 A, it operates within a control input voltage range of 24 to 275 V AC and 24 to 190 V DC, suitable for various applications.

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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 156-B20CA3

ManufacturerAllen Bradley
Product TypeSolid-State Contactor
Product Line156 Contactors
Part Number156-B20CA3
Weight0.75 lbs (0.34 kg)
UPC612598711802
Number of Poles3 Poles
Number of Phases3-Phase
Load Voltage600 V AC
Control Input Voltage Range24 – 275 V AC
Rated Current20.0 A
Max. Storage Humidity80% RH (Non-Condensing)
Max. Operating Altitude1000m above sea level
Control Input Voltage Range DC24 – 190 V DC
Min. Frequency50 Hz
Max. Frequency60 Hz
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The Allen Bradley 156-B20CA3 is engineered as a robust solid-state contactor, aiming to ensure reliable control in a variety of 3-phase electrical systems. With a significant load voltage capacity of 600 volts AC, this contactor supports a rated current of 20.0 A. Its design enables compatibility with varied control input voltage ranges, operating between 24 to 275 V AC and 24 to 190 V DC, providing flexibility in installation.

This unit is suitable for frequency applications ranging from 50 Hz to 60 Hz. The 156-B20CA3 can be utilized safely in environments with a maximum storage humidity of 80% RH, which ensures functionality without condensing moisture affecting its operation.

When planning installations, note that the maximum operational altitude for this contactor is 1000 meters above sea level, ensuring performance in elevated settings. Overall, the 156-B20CA3 solid-state contactor stands as a dependable choice for managing 3-phase electrical loads across various industrial environments.