803-B4RB

Rated 5 with 16 reviews
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803-B4RB

Revisions: Ser A 
Description: The Allen-Bradley 803-B4RB has 4 Circuits, 10 Amps, and a 150 rpm Max. Shaft Speed. It also contains a Snap Action 1 N.O.-1 N.C. Contact and 2-12 Independent Cam Operators.
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Description: The Allen-Bradley 803-B4RB has 4 Circuits, 10 Amps, and a 150 rpm Max. Shaft Speed. It also contains a Snap Action 1 N.O.-1 N.C. Contact and 2-12 Independent Cam Operators.

Warranty: 1 year DO Supply Warranty Included
Shipping: Worldwide shipping via DHL, UPS, Fedex, and TNT
Repairs: We offer repair service for the 803-B4RB.
Exchange: Exchange credit for your defective unit available.

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Rated 5 with 16 reviews

    Technical Specifications for 803-B4RB

ManufacturerRockwell Automation
BrandAllen-Bradley
Part Number/Catalog No.803-B4RB
Product TypeRotating Cam Limit Switch
Style of DeviceB
Circuits4
ModificationN/A
Modification 2Speed Reducer
Modification 3N/A
Enclosure Type1
Amps10
ContactSnap Action 1 N.O.-1 N.C.
Cam Operators2-12 Independent
Max. Shaft Speed150 rpm
Cam Duration14°-346°
Extension StandardLeft Shaft
ManufacturerRockwell Automation
BrandAllen-Bradley
Part Number/Catalog No.803-B4RB
Product TypeRotating Cam Limit Switch
Style of DeviceB
Circuits4
ModificationN/A
Modification 2Speed Reducer
Modification 3N/A
Enclosure Type1
Amps10
ContactSnap Action 1 N.O.-1 N.C.
Cam Operators2-12 Independent
Max. Shaft Speed150 rpm
Cam Duration14°-346°
Extension StandardLeft Shaft
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About 803-B4RB

The 803-B4RB Rotating Cam Limit Switch with Speed Reducer Option is a circuit control device by Allen-Bradley. It is used for control of industrial machines with dedicated cycles of operation, and in applications where the operation motion correlates with the shaft rotation. The 803-B4RB uses a shaft-mounted cam, which actuates contact as the shaft rotates for operation, and it is built for industrial applications like punch presses, injection molding, waterway gate/lock operations, and steel forming/heavy metals. It has 4 control circuits with 10A (1 NC, 1 NO) snap action contact, a spring-loaded cam-roller, and a rotating shaft with over-sized ball bearings, and a base speed of 150 RPM. The 803-B4RB also has 4 independently-operated cams with variable higher and lower cam segments (lobes and valleys), which activate and deactivate the circuit as the shaft rotates. The circuit is activated as the cam lobes push against the cam roller assembly, and the duration of the cam activation (dwell time) solely depends on the size of the cam lobes.



The circuit deactivates as the cam valley passes through the cam-roller. The timing that is measured in degree is the moment the rotating cam activates the circuit, and it is determined by the position of the rotating cam on the shaft, with reference to the Top Dead Center (TDC). The 803-B4RB has both internal timing and dwell time adjustments, which is only done when the machine stops, and like the standard Style B series devices, it comes with a left shaft extension. The 803-B4RB also comes with a speed reducer modification, with a 60:1 gear ratio, and a cast iron side plate, built specifically for the ruffed industrial condition. It has a -30 to 66 degrees Celsius (-22 to 150 degrees Fahrenheit) factory-designated operating temperature range, with a storage temperature range of -30 to 93 degrees Celsius (-22 to 200 degrees Fahrenheit), and it comes in an indoor-rated NEMA Type 1 enclosure. The 803-B4RB has CE, CSA, and UL certifications, and weighs about 10.9 kilograms (24 pounds), with an aggregate volume of 144.5 x 82.6 x 177.8 millimeters (5.69 x 3.25 x 7 inches).



Repair Services for 803-B4RB

Type Lead Time Price Action
Repair Service 2-4 weeks Askenvelope Get Quote

Our highly skilled technicians can repair your 803-B4RB. All of our repairs come with a 1 Year DO Supply Warranty. Please contact us for additional information about our repair process.

Revisions for 803-B4RB

Please refer to the manual for more information about the 803-B4RB such as the wiring diagrams, data sheets, firmware information and migration or obsolescence details.

Revision Part # Also Known as Availability
803-B4RB Ser A
803-B4RB/A, Series A, Rev A Request Quote
Common misspellings:
  • b03-B4RB
  • 8o3-B4RB
  • 803-84RB
  • 803-BARB
  • 803-B4R8
  • 803B4RB

Dimensions For 803-B4RB

Size
Input Type
Panel Cutout Height in mm
Panel Cutout Width in mm
Terminal Height in mm
Terminal Width in mm
Terminal Overall Depth in mm
Terminal Mounted Depth in mm

Dimensions For 803-B4RB

Resolutions For 803-B4RB

About

Technical Specifications for 803-B4RB

ManufacturerRockwell Automation
BrandAllen-Bradley
Part Number/Catalog No.803-B4RB
Product TypeRotating Cam Limit Switch
Style of DeviceB
Circuits4
ModificationN/A
Modification 2Speed Reducer
Modification 3N/A
Enclosure Type1
Amps10
ContactSnap Action 1 N.O.-1 N.C.
Cam Operators2-12 Independent
Max. Shaft Speed150 rpm
Cam Duration14°-346°
Extension StandardLeft Shaft
ManufacturerRockwell Automation
BrandAllen-Bradley
Part Number/Catalog No.803-B4RB
Product TypeRotating Cam Limit Switch
Style of DeviceB
Circuits4
ModificationN/A
Modification 2Speed Reducer
Modification 3N/A
Enclosure Type1
Amps10
ContactSnap Action 1 N.O.-1 N.C.
Cam Operators2-12 Independent
Max. Shaft Speed150 rpm
Cam Duration14°-346°
Extension StandardLeft Shaft

About 803-B4RB

The 803-B4RB Rotating Cam Limit Switch with Speed Reducer Option is a circuit control device by Allen-Bradley. It is used for control of industrial machines with dedicated cycles of operation, and in applications where the operation motion correlates with the shaft rotation. The 803-B4RB uses a shaft-mounted cam, which actuates contact as the shaft rotates for operation, and it is built for industrial applications like punch presses, injection molding, waterway gate/lock operations, and steel forming/heavy metals. It has 4 control circuits with 10A (1 NC, 1 NO) snap action contact, a spring-loaded cam-roller, and a rotating shaft with over-sized ball bearings, and a base speed of 150 RPM. The 803-B4RB also has 4 independently-operated cams with variable higher and lower cam segments (lobes and valleys), which activate and deactivate the circuit as the shaft rotates. The circuit is activated as the cam lobes push against the cam roller assembly, and the duration of the cam activation (dwell time) solely depends on the size of the cam lobes.



The circuit deactivates as the cam valley passes through the cam-roller. The timing that is measured in degree is the moment the rotating cam activates the circuit, and it is determined by the position of the rotating cam on the shaft, with reference to the Top Dead Center (TDC). The 803-B4RB has both internal timing and dwell time adjustments, which is only done when the machine stops, and like the standard Style B series devices, it comes with a left shaft extension. The 803-B4RB also comes with a speed reducer modification, with a 60:1 gear ratio, and a cast iron side plate, built specifically for the ruffed industrial condition. It has a -30 to 66 degrees Celsius (-22 to 150 degrees Fahrenheit) factory-designated operating temperature range, with a storage temperature range of -30 to 93 degrees Celsius (-22 to 200 degrees Fahrenheit), and it comes in an indoor-rated NEMA Type 1 enclosure. The 803-B4RB has CE, CSA, and UL certifications, and weighs about 10.9 kilograms (24 pounds), with an aggregate volume of 144.5 x 82.6 x 177.8 millimeters (5.69 x 3.25 x 7 inches).



Repairs
Type Lead Time Price Action
Repair Service 2-4 weeks Askenvelope Get Quote

Our highly skilled technicians can repair your 803-B4RB. All of our repairs come with a 1 Year DO Supply Warranty. Please contact us for additional information about our repair process.

Type Lead Time Price Action
Repair Service 2-4 weeks Askenvelope Get Quote

Our highly skilled technicians can repair your 803-B4RB. All of our repairs come with a 1 Year DO Supply Warranty. Please contact us for additional information about our repair process.

Revisions

Please refer to the manual for more information about the 803-B4RB such as the wiring diagrams, data sheets, firmware information and migration or obsolescence details.

Revision Part # Also Known as Availability
803-B4RB Ser A
803-B4RB/A, Series A, Rev A Request Quote

Common misspellings:
  • b03-B4RB
  • 8o3-B4RB
  • 803-84RB
  • 803-BARB
  • 803-B4R8
  • 803B4RB
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