RM903S IFM Multiturn hollow shaft encoder
KKM Solutions is an independent parts distributor, not an authorized IFM dealer — how we source.
IFM RM903S - Multiturn hollow shaft encoder - Storage Temperature: -40...90; Ambient temperature: -40...85.
Overview
Part number RM903S from IFM, listed in Rotary Encoders. Specifications on file: Ambient temperature -40...85; Code binary; Contact rating max. 1,5 A (24 V DC ); Detection system magnetic. KKM Solutions quotes this part with pricing and availability confirmed per order.
This listing covers the IFM RM903S, a part number in the Multiturn hollow shaft encoder category. The manufacturer's published data for this part number specifies Storage Temperature: -40...90.
housing: aluminum; flange: aluminum; sealings: NBR/HNBR; Display: UV-stabilized polycarbonate; Connections: diecast zinc nickel-plated (axial)/(radial)
Published specifications for this part include Ambient temperature: -40...85; Protocol: CANopen; CANopen Safety; CAN Spezifikation 2.0 A; Shaft Diameter: 12; Protection class: III; Dimensions: Ø 58 / L = 64.7; Contact rating: max. 1,5 A (24 V DC ); Product type: Multiturn hollow shaft encoder; Power consumption: 1.5; Operating voltage: 8...36 DC; Transmission rate: 20 kBit/s... 1 MBit/s; Current consumption: < 60; ((24 V DC)); Reverse polarity protection: yes. The complete technical table is shown in the Specifications tab on this page.
Specifications
| Ambient temperature | -40...85 |
|---|---|
| Code | binary |
| Connector | 1 x M12; coding: A; Contacts: 5; (open M12 connections must be covered with appropriate protective caps) |
| Contact rating | max. 1,5 A (24 V DC ) |
| Detection system | magnetic |
| Dimensions | Ø 58 / L = 64.7 |
| Fixing flange | direct flange; Ø 63 mm |
| Function principle | absolute |
| Housing | tubular |
| Key Features | Easy integration of the TÜV Rheinland-certified safety subsystem with ifm mode; safety subsystem with CANopen Safety support; Suitable for use in safety functions up to SIL2 / PL d category 3; Certified to the following standards: IEC 61800-5-3, IEC 61508 and ISO 13849-1; Maintenance-free safety encoder with fully magnetic detection |
| Material | housing: aluminum; flange: aluminum; sealings: NBR/HNBR; Display: UV-stabilized polycarbonate; Connections: diecast zinc nickel-plated (axial)/(radial) |
| Max. height above sea level | 5000 |
| Max. relative air humidity | 98 |
| Max. revolution, mechanical | 6000 |
| Max. starting torque | 0.05 |
| MIssion time TM | 175800 |
| Number of CAN interfaces | 2 |
| Operating temperature (active) | -40...85 |
| Operating voltage | 8...36 DC |
| Pack quantity | 1 pcs. |
| Parameter setting options | scaling; preset; Baud rate; node ID; gear function; monitoring window; Counting direction; speed parameters; integration time; ifm mode |
| PFH | 2,00E-8 |
| Power consumption | 1.5 |
| Product type | Multiturn hollow shaft encoder |
| Protection | IP 67; IP 69K; (with ifm socket duly screwed on) |
| Protection class | III |
| Protocol | CANopen; CANopen Safety; CAN Spezifikation 2.0 A |
| Reference temperature torque | 20 |
| Repeatability | ± 0,1 °; (magnetic) |
| Resolution | 8192 steps; 65536 revolutions; 29 bit |
| Response time to safety request | 7 |
| Reverse polarity protection | yes |
| Revolution type | multiturn |
| Shaft design | hollow shaft open to one side |
| Shaft Diameter | 12 |
| Specification Summary | Multiturn solid shaft encoder; Shaft diameter 12 mm; M12 Connector |
| Storage Temperature | -40...90 |
| Terminating resistor | yes; (Extern M12 (z.B. E11590)) |
| Transmission rate | 20 kBit/s... 1 MBit/s |
| Version | CiA 406 V4.1.0; CiA 301 V4.2.0; CiA DSP-305 V3.0.0 LSS; EN 50325-4; EN 50325-5; ISO 11898 |
Product details
| Manufacturer | IFM |
|---|---|
| Manufacturer part number | RM903S |
| Product category | Rotary Encoders |
| Published specifications | 40 attributes listed |
| Related part numbers | 13 other part numbers in this family |
Request a quote for this part
Email orderdesk@kkmsolutions.com or call (825) 454-5367 for pricing and availability.
Frequently Asked Questions
How do I get pricing for RM903S?
This part is quoted on request, so no price is listed for it here. Send the quote form on this page with your quantity, or email orderdesk@kkmsolutions.com, and our order desk will reply with pricing and availability within 1 business day.
Who manufactures the RM903S?
RM903S is made by IFM and is listed in our Rotary Encoders category. KKM Solutions is an independent distributor, not an authorized IFM dealer: we source the exact IFM part number RM903S, and the quote confirms condition and lead time before you order.
Is the RM903S new and genuine?
Parts we supply are new and genuine unless the quote expressly states otherwise. Where a part is new-old-stock, from excess inventory, refurbished or open-box, the quote says so before you approve it.
What warranty comes with the RM903S, and can I return it?
Parts we supply are warranted against manufacturing defects for 1 year from the date of delivery; where the manufacturer's own warranty is longer, the manufacturer's warranty applies. The warranty covers repair, replacement, or credit of the defective part and does not cover normal wear items, misapplication, improper installation, or consequential damages. Contact us within 30 days of delivery before returning anything — all returns need a return authorization from the order desk.
What is the lifecycle status of RM903S?
No published lifecycle status is on file for RM903S. IFM lists whether a catalog number is current, superseded or end-of-life on its own product page, and our order desk confirms the status with the manufacturer at quote time, before you commit. Send the part number through the quote form on this page.
What are the key specifications of RM903S?
Key specifications include Ambient temperature: -40...85; Code: binary; Connector: 1 x M12; coding: A; Contacts: 5; (open M12 connections must be covered with appropriate protective caps); Contact rating: max. 1,5 A (24 V DC ). The full specification table on this page lists every published attribute for this part.
What is the bore size of RM903S?
Per the published specification for RM903S: Shaft Diameter: 12. Confirm against the full specification table on this page, or ask our order desk to verify it with the manufacturer at quote time.
What voltage does RM903S use?
Per the published specification for RM903S: Operating voltage: 8...36 DC. Confirm against the full specification table on this page, or ask our order desk to verify it with the manufacturer at quote time.
What operating temperature is RM903S rated for?
Per the published specification for RM903S: Operating temperature (active): -40...85. Confirm against the full specification table on this page, or ask our order desk to verify it with the manufacturer at quote time.
How quickly can RM903S ship?
Lead time for RM903S is quoted per order and confirmed on your quote, which our order desk sends within 1 business day. For a line-down emergency, call the 24/7 order desk at (825) 454-5367.
Variants & Related Part Numbers
Other IFM part numbers in this family:
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