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Allen Bradley 156 Contactors 156-B20AB1

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156-B20AB1

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The 156-B20AB1 solid-state contactor from Allen Bradley is engineered for single-phase applications with a nominal voltage of 230 AC. This contactor features a current rating of 20 amperes, ensuring reliable operation across various loads.

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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-B20AB1

ManufacturerAllen Bradley
Product TypeSolid-State Contactor
Product Line156 Contactors
Part Number156-B20AB1
UPC612598709458
Weight0.69 lbs (0.31 kg)
Rated Phase1-phase
Nominal Voltage Rating230 Volts AC
Frequency Rating45 to 65 Hertz
Blocking Voltage650 peak voltage
Rated Insulation Voltage4,000 Volts AC
Minimum Power FactorLess than 0.5 at 230 Volts AC
Local SignallingRed and green LED indicators
Housing MaterialFlame retardant Polybutylene Terephthalate (PBT)
Operational Voltage Range24 to 265 Volts AC
Mounting MethodDIN rail mount
Pollution DegreePollution Degree 2
Mounting OrientationVertical mount
Current Rating20 Amperes
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The Allen Bradley 156-B20AB1 solid-state contactor is a robust control device optimized for single-phase applications. It has a voltage rating of 230 volts AC and operates effectively within a frequency range of 45 to 65 hertz. Engineered for durability, the contactor can manage a maximum current of 20 amperes, making it suitable for various industrial applications.

The operational voltage range for the 156-B20AB1 spans from 24 to 265 volts AC, ensuring flexibility in different setups. Additionally, it offers a blocking voltage capability of 650 volts peak, along with a rated insulation voltage of 4,000 volts AC, providing significant protection against electrical faults.

Monitoring its status is straightforward thanks to the inclusion of red and green LED indicators, indicating operational status and alerts. The housing is constructed from flame-retardant Polybutylene Terephthalate (PBT), enhancing safety in the event of overheating. The contactor is designed for vertical mounting on a DIN rail, adhering to a pollution degree classification of 2, suitable for environments with moderate pollution. The 156-B20AB1 is a reliable component for users needing efficient control in demanding electrical applications.