Allen-Bradley 842E-CM-SIP3BA Encoder, CIP Motion, Single turn, Solid shaft 10 mm, 10 30V,
$2,479.99
Out of stock
Request QuoteAllen-Bradley 842E-CM-SIP3BA — The 842E-CM-SIP3BA is an Allen-Bradley Bulletin 842E-CM integrated motion encoder with EtherNet/IP interface, 18-bit single-turn resolution (262,144 steps), rated 10…30V DC supply at 200 mA max, 3/8 in. solid shaft, for motion control in industrial environments with IP67 housing protection.
| Resolution | 262,144 (18 bit) steps per revolution |
| Operating Voltage | 10…30V DC |
| Operating Current (max, no load) | 200 mA |
| Mechanical Interface | Solid shaft 3/8 in. |
| Enclosure Rating (housing) | IP67 |
| Communication Protocol | EtherNet/IP with IEEE 1588 Precision Clock Synchronization |
PLC Exchange is not an authorized distributor: Original Packaging is synonymous with Used Surplus. See Original Packaging or Warranty for more information.
Description
Allen-Bradley 842E-CM-SIP3BA
The 842E-CM-SIP3BA is an Allen-Bradley Bulletin 842E-CM integrated motion encoder with EtherNet/IP interface, 18-bit single-turn resolution (262,144 steps), rated 10…30V DC supply at 200 mA max, 3/8 in. solid shaft, for motion control in industrial environments with IP67 housing protection.
| Product Overview | |
|---|---|
| Catalog Number | 842E-CM-SIP3BA |
| Product Type | Integrated Motion Encoder |
| Number of Turns | Single-turn (1 turn) |
| Mechanical Interface Code | 1 = Solid shaft 3/8 in. |
| Connector Type | M12 connector |
| Electrical Specifications | |
|---|---|
| Bus Connection | EtherNet/IP IEC 61784-1 |
| CIP Sync | IEEE 1588 (IEC 61588, precision clock synchronization) |
| Transmission Rate | 10/100 MBps |
| Transmission Medium | Cat-5e cable |
| Code Type | Binary |
| Operating Voltage Range | 10…30V |
| Power Consumption | 3.0 W |
| Operating Current (max, no load; 10…30V supply) | 200 mA |
| Performance & Accuracy | |
|---|---|
| Resolution | 262,144 (18 bit) |
| Number of Revolutions (max) | 4096 (12 bit) |
| Error Limits | ±0.03° |
| Repeatability | ±0.002° |
| Operating Speed (max) | 9000 RPM (solid shaft) |
| Angular Acceleration (max) | 5 × 10⁵ rad/s² |
| Mechanical Specifications | |
|---|---|
| Moment of Inertia (solid shaft rotor) | 6.2 gcm² |
| Shaft Loading – Radial (max, solid shaft) | 80 N |
| Shaft Loading – Axial (max, solid shaft) | 40 N |
| Operating Torque (solid shaft @ 20 °C) | 0.3 N•cm |
| Starting Torque (solid shaft @ 20 °C) | 0.5 N•cm |
| Bearing Lifetime | 3 × 10⁹ revolutions |
| Shaft Material | Stainless steel |
| Environmental & Physical | |
|---|---|
| Housing Material | Aluminum |
| Operating Temperature | -30…+85 °C (-22…+185 °F) |
| Storage Temperature | -40…+100 °C (-40…+212 °F) |
| Relative Humidity | 90% |
| Shock | 100 g/6 ms |
| Vibration | 20 g/10…2000 Hz |
| Enclosure Rating (shaft) | IP65 |
| Enclosure Rating (housing) | IP67 |
| Weight | 0.2 kg (0.44 lb) |
| Certifications & Compliance | |
|---|---|
| CE Marking | All applicable directives |
| NRTL Mark | c-UL-us and TÜV for UL 508 |
| CAN/CSA | C22.2.14-10 |
| EMC Standards | EN 61000-6-2 and EN 61000-6-3 |
PLC Exchange Original Packaging is synonymous with Used Surplus. Because we are not an authorized distributor, we are not legally allowed to claim these items as “New”, “Factory Sealed”, or any other term that may imply such. We have over 10 years of experience working with trusted suppliers to make sure you receive the top-quality hardware you need. Used Surplus items ship in their original packaging, with the same function and contents as OEM-supplied materials. PLC Exchange is an independent supplier of industrial automation products and is not affiliated with the brand manufacturer or any of its authorized distributors. All warranties are provided directly by PLC Exchange. Trademarks, logos, and brand names referenced are property of their respective owners and are used for descriptive identification only.
Disclaimer: PLC Exchange is an independent reseller and is not an authorized distributor, affiliate, licensee, partner, or agent of Allen-Bradley / Rockwell Automation. All product information on this page is compiled from publicly-available manufacturer publications, technical data sheets, and catalog sources, each of which remains the copyright of its originating manufacturer. We make no representation or warranty, express or implied, regarding the accuracy, completeness, timeliness, or fitness for any particular purpose of the specifications or descriptions shown — content may contain errors, omissions, or out-of-date information. Product images are the property of their respective manufacturers, trademark owners, and source publications, and are displayed solely for identification purposes under the nominative fair use doctrine; images are representative and may depict a different configuration or catalog variant than the exact product listed. Purchasers should independently verify specifications against the current manufacturer publication before placing an order. All product names, trademarks, service marks, and registered trademarks are the property of their respective owners, and their use does not imply endorsement or affiliation.
Technical Notes for 842E-CM-SIP3BA
- Refer to the manufacturer's installation instructions for proper mounting, wiring, and configuration.
- Ensure compatibility with your existing system architecture before ordering.
- All 842E-CM-SIP3BA units sold by PLC Exchange are tested and ship in original factory packaging.
- For application-specific questions or system compatibility verification, contact PLC Exchange technical support at [email protected] or 980-202-0882.
Reference Documents
Alternative Part Numbers & Names for 842E-CM-SIP3BA
The 842E-CM-SIP3BA by Allen-Bradley may also be found under the following alternative names, catalog numbers, or common search variations:
- 842ECMSIP3BA
- Allen Bradley 842E-CM-SIP3BA
- Allen-Bradley 842E-CM-SIP3BA
- 842E CM SIP3BA
All variations refer to the same Allen-Bradley product. If you are unsure whether this is the correct part for your application, contact our team for assistance.
Additional information
| Weight | 0.44 lbs |
|---|---|
| Dimensions | 12 × 10 × 6 in |
| warranty | 2.5 Year PLC Exchange Warranty, 30 Days worry-free return from delivery |
| upc | 885630566917 |
| mpn | 842E-CM-SIP3BA |
| manufacturer | Allen-Bradley |
| condition | Original Packaging |
Dimensions & Weight for 842E-CM-SIP3BA
| Shipping Dimensions | |
|---|---|
| Weight | 0.44 lbs |
| Length | 12 in |
| Width | 10 in |
| Height | 6 in |
| Box Dimensions (L×W×H) | 12 × 10 × 6 in |
Dimensions shown are for the shipping package. For module-level mechanical dimensions, refer to the manufacturer datasheet.
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Frequently Asked Questions
Where can I find the technical datasheet for the 842E-CM-SIP3BA?
The official manufacturer datasheet is available for download on the 842E-CM-SIP3BA product page at PLC Exchange. Look for the Tech Data PDF link in the product description.
Does the 842E-CM-SIP3BA include a warranty?
Yes. Every 842E-CM-SIP3BA sold by PLC Exchange includes a 2.5-year warranty (30 months, full replacement). Details: https://plcexchange.net/warranty-information/
What is the return policy for the 842E-CM-SIP3BA?
PLC Exchange offers a 30-day worry-free return policy. Eligibility and details: https://plcexchange.net/return-policy/
When will my 842E-CM-SIP3BA ship?
In-stock orders placed before 4 PM ET ship the same business day via free UPS Ground. Expedited options (Next Day Air, 2nd Day Air) are available at checkout.
Who manufactures the 842E-CM-SIP3BA?
The 842E-CM-SIP3BA is manufactured by Allen-Bradley. PLC Exchange is an independent reseller specializing in Allen-Bradley industrial automation products.

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