42CA-U2KNB-A2

18 mm Cylindrical Sensor

Name: 18 mm Cylindrical Sensor
Brand: Rockwell Automation
SKU: 42CA-U2KNB-A2

Serial #:

Lifecycle status: End of Life

Rockwell Automation announces that as of December 31, 2026, the 18 mm Cylindrical Sensor will be discontinued and no longer available for sale. Customers are encouraged to remove references to the affected product(s)

Discontinued Date: December 31, 2026 Replacement Category: Direct Replacement Replacement Product: 42CE-P2MNB1-A2 [https://www.rockwellautomation.com/en-us/products/details.42CE-P2MNB1-A2.html]

Product at a glance

Replacement Available

Lifecycle status: End of Life

Discontinued Date: December 31, 2026 Replacement Category: Direct Replacement Replacement Product: 42CE-P2MNB1-A2 [https://www.rockwellautomation.com/en-us/products/details.42CE-P2MNB1-A2.html]

Product at a glance

Replacement Available

Unique Product Identifier	42CA-U2KNB-A2
UPC	612598896189
Estimated Lead Time	31 days
Standard Warranty Duration	1 year See details
Country of Origin	Dominican Republic

Light Source	Visible Red
Minimum Sensing Distance	3,4800,4800
Quick Disconnect	Not Applicable
Response Time	1.00ms
Sensitivity Adjustment	Not Adjustable Sensitivity

Connection type	2 m cable
Current consumption, max	30 mA
Indicator LEDs	Orange: Output status
Leakage current	0.1 mA (DC), maximum
Lens material	Polymethyl methacrylate (PMMA)
Light source	Visible red
Max. output current	100 mA
Operating distance	2 mm
Operating voltage/mode	DC - dark operate
Protection type	Short circuit, reverse polarity, false pulse, overload
Rated control supply voltage at DC	10 V
Response time	1 ms
Sensitivity adjustment	Not adjustable
Suitable for safety functions	False
Type of electric connection	Cable
Type of switching output	NPN
Voltage type	DC
Wavelength of the sensor	660 nm
With reflector	False
With time function	False

Ambient light immunity	Incandescent light 5000 lux
Operating temperature	-25 °C
Relative humidity	5...95% (noncondensing)

Mechanical

Degree of protection (IP)	IP67
Diameter sensor	16.5 mm
Field of view	1.2 °
Length of sensor	66.5 mm
Max. switching distance	4800 mm
Sensing mode	Dark switching
Sensing mode type	Retroreflective
Shock	30 G with 11 ms pulse duration, meets or exceeds IEC 60947-5-2
Spot size	102 mm @ 4.8 m
Vibration	10...55 Hz, 1 mm Alitude, meets or exceeds IEC 60947-5-2

Construction

Construction type housing	Cylinder, screw-thread
Housing material	Polybutylene terephthalate (PBT)
Material housing	Plastic
Material of optical surface	Plastic

Installation Instructions	Publication
42ca-in002_-en-p	42CA-IN002

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Overview

Unique Product Identifier	42CA-U2KNB-A2
UPC	612598896189
Estimated Lead Time	31 days
Standard Warranty Duration	1 year See details
Country of Origin	Dominican Republic

Electrical & Connectivity

Light Source	Visible Red
Minimum Sensing Distance	3,4800,4800
Quick Disconnect	Not Applicable
Response Time	1.00ms
Sensitivity Adjustment	Not Adjustable Sensitivity

Connection type	2 m cable
Current consumption, max	30 mA
Indicator LEDs	Orange: Output status
Leakage current	0.1 mA (DC), maximum
Lens material	Polymethyl methacrylate (PMMA)
Light source	Visible red
Max. output current	100 mA
Operating distance	2 mm
Operating voltage/mode	DC - dark operate
Protection type	Short circuit, reverse polarity, false pulse, overload
Rated control supply voltage at DC	10 V
Response time	1 ms
Sensitivity adjustment	Not adjustable
Suitable for safety functions	False
Type of electric connection	Cable
Type of switching output	NPN
Voltage type	DC
Wavelength of the sensor	660 nm
With reflector	False
With time function	False

Compliance & Environment

Ambient light immunity	Incandescent light 5000 lux
Operating temperature	-25 °C
Relative humidity	5...95% (noncondensing)

Physical Characteristics

Mechanical

Degree of protection (IP)	IP67
Diameter sensor	16.5 mm
Field of view	1.2 °
Length of sensor	66.5 mm
Max. switching distance	4800 mm
Sensing mode	Dark switching
Sensing mode type	Retroreflective
Shock	30 G with 11 ms pulse duration, meets or exceeds IEC 60947-5-2
Spot size	102 mm @ 4.8 m
Vibration	10...55 Hz, 1 mm Alitude, meets or exceeds IEC 60947-5-2

Construction

Construction type housing	Cylinder, screw-thread
Housing material	Polybutylene terephthalate (PBT)
Material housing	Plastic
Material of optical surface	Plastic

Documents

42ca-in002_-en-p Installation Instructions
42CA-IN002

Installation Instructions	Publication
42ca-in002_-en-p	42CA-IN002