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Allen Bradley 156 Contactors 156-A20BB3

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156-A20BB3

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The Allen Bradley 156-A20BB3 is a solid-state contactor designed for versatile applications in industrial environments. This unit operates with a control voltage ranging from 5 to 24V DC and supports operational voltage levels from 24 to 480V AC, making it suitable for various electrical requirements.

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2 Year DO Supply Warranty
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-A20BB3

ManufacturerAllen Bradley
Product TypeSolid-State Contactor
Product Line156 Contactors
Part Number156-A20BB3
Weight1.19 lbs (0.54 kg)
3-Phase ContactorYes
Control Voltage5 to 24V DC
Operational Voltage24 to 480V AC
Current20A
HeatsinkIncluded
DIN Rail MountingSupported
LED Status IndicatorsIncluded
Burst FiringSupported
IP RatingIP20
Heater ApplicationsSupported
Solenoid ApplicationsSupported
Transformer ApplicationsSupported
Motor ApplicationsSupported
Maximum Leakage Current1 mA
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In the realm of industrial automation, the Allen Bradley 156-A20BB3 stands out as a reliable solid-state contactor. This contactor is specifically configured for 3-phase systems, facilitating seamless electrical control. Designed to handle a steady current of up to 20 amps, it operates efficiently within a voltage range of 24 to 480 volts AC. For control circuits, this unit accepts voltage inputs between 5 and 24 volts DC, enhancing its versatility across applications.

Included with the unit, a heatsink ensures optimal thermal management, contributing to its longevity and reliability during operations. Additionally, the 156-A20BB3 is made for mounting on DIN rails, simplifying installation in electrical cabinets. Visual feedback is provided through integrated LED status indicators, which signal operational states effectively.

This model supports burst firing mode, allowing it to function efficiently across a variety of applications, including heating elements, solenoids, transformers, and motors. With an IP20 rating, it offers basic protection against dust, though it is designed for environments where moisture is not a concern. Importantly, the unit maintains a maximum leakage current of only 1 mA, ensuring energy efficiency and safety during operation. Overall, the Allen Bradley 156-A20BB3 solid-state contactor combines advanced features with robust performance, making it a suitable choice for diverse industrial automated systems.