Rockwell Automation has further extended its range of products for the panel and machinery builder with the introduction of the Allen-Bradley 156 solid state contactors:
Rated at up to 50A (AC-1) the new Allen-Bradley 156 solid state contactors by Rockwell Automation are ideal for fast and demanding switching of loads such as heaters, solenoids, transformers and motors.
Electronic current switching means there are no moving parts or contacts to wear out. No maintenance is required and performance is unaffected by shock or vibration. This makes the 156 contactor ideal for high duty cycle applications where electro-mechanical contactors would wear out very quickly. The long operational life means they are also ideal for replacing mercury contactors, which can be an environmental hazard.
Approved for global use:
Suitable for single, dual or three phase applications they are rated at 50A for AC-1 duty and 15A for AC-3 and suitable for use with supply voltages from 24 to 600V AC 50/60 Hz. A built in Varistor provides protection against supply fluctuations and the contactors are CE, cULus and CSA approved for global use. A 'burst firing mode' can be used to send a series of whole mains cycles to a resistive load, significantly reducing EMC emissions.
Two control voltage ranges from 5 to 24V DC and 24 to 230V AC, cover a wide range of applications. The compact design features a built in heatsink making ordering easy since no additional components are required. LEDs indicate the status of the device and installation is quick and easy with the units being suitable for either panel or DIN rail mounting. Terminals are protected to IP20 to ensure safety for personnel.
Suitable for high-speed operation applications:
With fast switch-on and switch-off times the 156 is suitable for applications that require high-speed operation. These include materials handling, rubber and plastic industries, semi-conductor production and food wrapping. For applications where the load factor is less than 100% (ie. there is an 'off' period in each cycle), the contactor can be over-rated to provide a highly cost effective solution.
Unaffected by high levels of shock (up to 100G) and vibration (up to 10G) the 156 solid state contactor is ideal for applications in the mining and forestry industries where these problems are common.
With the introduction of the Allen-Bradley 156 solid state contactor, Rockwell Automation has provided the panel builder and machinery manufacturer with a robust and reliable, high performance switching device that will give long life in the most demanding duty applications.
Contact: Jennie Holmes
Rockwell Automation Ltd.,
Pitfield, Kiln Farm,
Milton Keynes MK11 3DR
Tel: 0870 242 5004
Fax: 01908 839696
Email: [email protected]
Web: www.rockwellautomation.co.uk