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Allen Bradley 156 Contactors 156-B20CB3

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156-B20CB3

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The 156-B20CB3 from Allen Bradley is a solid-state contactor designed for reliable performance in various applications. Operating within an extensive voltage range, it provides flexibility for different setups.

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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-B20CB3

ManufacturerAllen Bradley
Product TypeSolid-State Contactor
Product Line156 Contactors
Part Number156-B20CB3
UPC612598711819
Operational Voltage48…660V AC
Control Voltage5-24 VDC
Number of Poles3 Poles
Number of Phase3-Phase
Minimum Frequency50 Hz
Maximum Frequency60 Hz
IP RatingIP20
Rated Current20.0 A
Maximum Storage Humidity80% RH (Non-Condensing)
Maximum Operating Altitude1000m above sea level
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The Allen Bradley 156-B20CB3 is a solid-state contactor that integrates advanced technology for precision motor control. It accommodates an operational voltage spectrum of 48 to 660 volts AC, marking it suitable for a variety of industrial tasks. The control voltage operates within the range of 5 to 24 VDC, enabling compatibility with different control circuits.

Engineered with three poles, this contactor is appropriate for three-phase systems, ensuring consistent performance in demanding applications. It can handle a rated current of 20.0 A and maintains efficient functionality at minimum frequencies of 50 Hz and maximum frequencies of 60 Hz.

Its IP20 rating signifies it is designed for applications requiring basic protection against mechanical hazards but is not suited for environments with water exposure. Additionally, the 156-B20CB3 can be stored safely in conditions where humidity does not exceed 80% RH, avoiding risks of condensation that could compromise performance. The contactor is capable of functioning effectively at elevations up to 1000 meters above sea level, making it versatile for various geographic settings.