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Delta · servo motor
ECM-B3M-K21320RS1 is a Delta Servo Motor. It is used in CNC axes, robot arms, feeding and indexing drives where the installed unit is matched to the original catalog number and a compact, documented part is required.
| Electrical | |
| Rated speed | 2000 rpm |
|---|---|
| Encoder type | 24-bit incremental optical encoder (single-turn absolute) |
| Mechanical | |
| Enclosure rating | IP65 (IEC 60529) |
| Environment and compliance | |
| Operating temperature | 0...+40 °C (IEC 60068-2-1) |
| Certifications | CE, UL, cULus |
Product type and series follow the official Delta download-centre catalogue search for this model which lists ECM-B3M-K21320RS1 under the Delta product line; the product type published for this catalog number is "Servo Motor". Source: https://downloadcenter.deltaww.com/en-US/DownloadCenter?q=ECM-B3M-K21320RS1. Numeric ratings in the table above are the values carried on this page and must be confirmed against the original Delta manufacturer datasheet before they are treated as this catalog number's ratings; they are not estimated here.
Values follow the Delta servo motor specification for this catalog number; parameters not confirmed for this variant are omitted rather than estimated.
| Delta servo motor variants | |||
| Catalog number | Encoder type | Rated speed | |
|---|---|---|---|
| ECM-B3M-K21320RS1 (this page) | 24-bit incremental optical encoder (single-turn absolute) | 2000 rpm | |
| ECM-B3M-C20604RB1 | 24-bit incremental optical encoder (single-turn absolute) | 3000 rpm | |
| ECM-B3M-C20807RB1 | 24-bit incremental optical encoder (single-turn absolute) | 3000 rpm | |
| ECM-B3M-CB0810RB1 | — | — | |
Before selecting an alternative, confirm its dimensions, terminals and installation requirements in the manufacturer documentation.
The ECM-B3M-K21320RS1 is the servo motor in a Delta motion installation. It converts the drive output into rotary motion and carries the encoder feedback, so the shaft load and the feedback wiring are sized to the ratings stated in the manufacturer documentation, not to a generic assumption.
Typical installations place it in CNC axes, robot arms, feeding and indexing drives, where the unit is matched to the original catalog number and the enclosure provides standard panel or DIN-rail support. Record the catalog number and revision from the nameplate of the installed unit before specifying a like-for-like spare.
Delta ECM-B3M-K21320RS1 — Servo and motion-control component for high-accuracy positioning and synchronised movement. The figures below are taken from the specification table on this page for catalog number ECM-B3M-K21320RS1; confirm the installed unit's part number and revision so the replacement matches both electrically and mechanically.
For a discontinued unit, match function and electrical ratings rather than the label alone.
Q.Which official Delta document defines ECM-B3M-K21320RS1?
The official Delta download-centre catalogue search for this model lists ECM-B3M-K21320RS1 under the Delta product line, and the product type published for this catalog number is "Servo Motor". The document and its official catalogue record are publicly retrievable at https://downloadcenter.deltaww.com/en-US/DownloadCenter?q=ECM-B3M-K21320RS1. Use that document as the authority for ratings and installation conditions before ordering.
Q.For ECM-B3M-K21320RS1, what does the specification table state about rated speed?
The specification table lists rated speed = 2000 rpm for Delta ECM-B3M-K21320RS1. Check the revision of the installed unit if the catalog number has been superseded.
Q.Which value is published under operating temperature for catalog number ECM-B3M-K21320RS1?
For ECM-B3M-K21320RS1, operating temperature is given as 0...+40 °C (IEC 60068-2-1). Compare it with the nameplate of the installed unit before ordering.
Q.Before ordering ECM-B3M-K21320RS1, which encoder type entry should be checked?
The encoder type entry quoted above is 24-bit incremental optical encoder (single-turn absolute). Confirm this figure against the unit currently in the panel.
Q.How do I confirm compatibility of ECM-B3M-K21320RS1 before ordering?
Match the catalog number ECM-B3M-K21320RS1 and the specification values listed above against the installed unit, then confirm the firmware or hardware revision where a revision-sensitive part is involved.
Q.Can the ECM-B3M-K21320RS1 replace the unit currently installed in my panel?
Compare catalog number ECM-B3M-K21320RS1 and the ratings above with the nameplate of the installed device. A current-production equivalent is selected by function and electrical rating, not by the label alone.
Standard (US & Canada, tracked courier): delivered in 5–8 business days. In-stock items are processed within 2–4 business days. USD 25 flat rate on orders under $500.00; free on orders of $500.00 and above.
Express (DHL Express / FedEx International): upgraded expedited delivery in 2–4 business days. The Express surcharge is calculated at checkout based on destination and order weight.
Non-Stock / On-Order items ship on request: dispatch time is confirmed before your order — see our Shipping Policy. Shipping charges and available services are displayed at checkout. See the Shipping Policy for details.
Every product is covered by a 12-month seller warranty provided by SHLY-PLC, effective from the date of delivery, against defects in materials and workmanship under normal use.
This warranty does not cover damage from misuse, improper installation, power surges, neglect, unauthorized repair, or normal wear and tear. See our Return Policy for warranty-claim instructions.
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