ABB 07AC91D Technical Specifications
Product Model:ABB 07AC91D
Manufacturer:ABB
Product Type:AC Contactor
Series:A Series
Rated Operating Current(Ie):9A(AC-3,400V)
Rated Insulation Voltage(Ui):690V
Rated Operating Voltage(Ue):220-240V AC
Number of Poles:3
Coil Voltage:Various options available(24V,110V,220V,etc.)
Coil Power Consumption:Approximately 5VA
Mechanical Life:10 million operations
Electrical Life:1 million operations(AC-3)
Mounting:35mm DIN rail or screw mounting
Wiring:Screw terminals
Protection Rating:IP20
Ambient Temperature:-25°C to+60°C
Approvals:CE,cULus,CCC
ABB 07AC91D Product Overview
The ABB 07AC91D,a classic member of the ABB A-Series AC contactor family,is an electromagnetic switching device designed specifically for motor control.Its core function is to control the main circuit’s on/off state through the energization and release of the electromagnetic mechanism,thereby enabling motor start,stop,and operation control.The ABB 07AC91D plays a key role as an”actuator switch”in electrical control systems:when the coil is energized,electromagnetic force drives the contacts to close,connecting the main circuit;when the coil is de-energized,spring force forces the contacts to open,disconnecting the circuit.It is an indispensable component in various motor control circuits and is renowned in the industrial control field for its reliable performance and long service life.
Main Features and Benefits
This contactor’s strengths lie in its reliable structural design,long service life,and flexible configuration options.Its optimized electromagnetic system ensures low energy consumption and low noise operation,while also providing sufficient contact pressure for reliable contact and reducing contact resistance and heat generation.
Secondly,its exceptionally long mechanical lifespan(10 million operations)and electrical lifespan(1 million AC-3 operations)make it suitable for frequent operation,significantly reducing maintenance and replacement frequency.Silver alloy contact material offers excellent conductivity and resistance to arc erosion,ensuring stable contact performance.
The ABB 07AC91D’s modular design allows for easy addition of accessories such as auxiliary contacts and mechanical interlocks to expand its functionality.Its compact size saves installation space,while a variety of coil voltage options enable flexible adaptation to varying control circuit voltage requirements.The product complies with international standards and holds comprehensive safety certifications.
The ABB 07AC91D is a reliable AC contactor from the renowned A series,designed specifically for motor control applications.Its key strength lies in providing dependable switching performance with exceptional mechanical and electrical longevity.Featuring an optimized electromagnetic system,it ensures quiet operation with low power consumption.The silver alloy contacts guarantee stable conductivity and resistance to arc erosion.With a mechanical life of 10 million operations and an electrical life of 1 million operations under AC-3 duty,this contactor is built for demanding applications.Its compact design,modular accessory system,and multiple coil voltage options make it a versatile and economical choice for a wide range of industrial motor control needs,offering excellent value and reliability.
Application Areas
The ABB 07AC91D is widely used in various motor control applications.In industrial production lines,it controls the start and stop of various pumps,fans,and conveyor motors.In building electrical systems,it is used for lighting control and air conditioning system control.In machinery manufacturing,it serves as a basic control element for various OEM equipment.Furthermore,it is a reliable choice for motor control circuits in fields such as agricultural irrigation,water treatment,and HVAC.
Selection Guide/Purchasing Recommendations
When selecting the ABB 07AC91D,first determine the specifications based on the load type and current(AC-3 load,9A).The most critical factor is selecting the correct coil voltage,which must be consistent with the control circuit voltage(e.g.,24V,110V,220V,etc.).Consider whether auxiliary contacts(for signal feedback)or other accessories are needed.For applications with frequent operation,it is recommended to allow for a certain current margin.When purchasing,please confirm the product’s appearance and labeling to ensure it is genuine.
Frequently Asked Questions(FAQs)
Q:What should I do if I select the wrong coil voltage for the contactor?
A:Absolutely not!The coil voltage must match the control voltage;otherwise,the contactor may not operate,the coil may burn out,or the control circuit may malfunction.When purchasing the 07AC91D,be sure to clearly indicate the required coil voltage.
Q:What causes a loud contactor noise?
A:Possible causes include:dirt on the core pole surface,low voltage,or damaged short-circuit rings.For the 07AC91D,first check whether the operating voltage is within 85%-110%of the rated value,then check whether the core contact surface is clean.
Q:How do I determine if a contactor needs to be replaced?
A:The 07AC91D should be replaced if:severe contact erosion,coil burnout,stuck operation,or abnormally increased noise levels occur.Regularly check contact thickness;if it is less than 1/2 of its original thickness,replace it.
Related Products
ABB Thermal Relay:Used with the 07AC91D to provide motor overload protection.
ABB Auxiliary Contact Block:Adds signal contacts to the 07AC91D.
ABB Mechanical Interlock:Provides interlocking control between two 07AC91Ds.
ABB Time Relay:Provides time delay control.
ABB Pushbutton Indicator:Completes the control circuit.
Installation and Maintenance
Pre-Installation Preparation:Before installing the ABB 07AC91D,ensure the power is off.Check the coil voltage for the correct specifications.Prepare a suitable mounting rail or mounting plate.
Maintenance Recommendations:Regularly check for loose fasteners.Clean the contact surfaces(replace if severely corroded).Check for flexibility of moving parts.Regularly test the pull-in and release voltages.Keep the installation environment clean and free of conductive dust.
Product Guarantee
At Shenzhen Changxin,we guarantee that every ABB 07AC91D we provide is genuine,sourced from legitimate sources,and comes with a one-year quality guarantee.Our professional technical team can provide you with accurate selection guidance and application consulting.Choosing us means you’ve chosen a stable and reliable industrial control partner to ensure the safe and reliable operation of your motor control system.
Shenzhen Changxin guarantees that every ABB 07AC91D contactor is 100%genuine,sourced through authorized channels,and comes with a full manufacturer’s warranty.Our technical team is ready to provide expert advice on product selection and application,ensuring your motor control systems operate safely and reliably.Partner with us for quality components and professional support for all your automation needs.
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