Confirm the complete 6ES5 240-1AA21 part number and series from the product label.
Product imageRepresentative image. Confirm the exact label and configuration in the quotation.
Industrial productPart number: 6ES5 240-1AA21
SIEMENS 6ES5 240-1AA21 Counter Module for Precise Counting
- Part number
- 6ES5 240-1AA21
- Availability
- In stock
- Category
- Test, Inspection & Maintenance
- Subcategory
- Test & Measurement Instruments
✓ Part-number review✓ Condition stated in quote✓ Worldwide delivery options
Product overview
6ES5 240-1AA21 product information
SIEMENS 6ES5 240-1AA21 Counter Module for Precise Counting
High-precision counting for industrial automation applications
| Brand | SIEMENS |
| Model | 6ES5 240-1AA21 |
| Voltage | 24V DC |
| Country of Origin | Germany |
| Weight | 0.5 kg |
| Dimensions | 100mm x 50mm x 120mm |
| Warranty | 2 years |
| Certifications | CE, UL |
| SKU / MPN | 6ES5240-1AA21 |
| What’s in the box | Counter Module, User Manual, Mounting Hardware |
| Counting Speed | Up to 100 kHz |
| Input Channels | 4 |
| Output Channels | 2 |
| Resolution | 16-bit |
| Operating Temperature | -20°C to 70°C |
| Protection Class | IP20 |
Key benefits: Accurate counting, reliable performance, easy integration
Typical applications: Conveyor systems, packaging machines, material handling
Order number: SIEMENS 6ES5 240-1AA21 Counter Module for Precise Counting
Lifecycle: Active
Documentation: https://support.industry.siemens.com
Compatibility01 02 03 04
Confirm the complete system—not only the model number
Industrial components can differ by series, firmware, voltage, network, terminal base, memory, accessories and approvals. A matching front label does not by itself guarantee a drop-in replacement.
Send the existing system or application information when compatibility matters.
State quantity, preferred condition, destination and required delivery date.
Include a clear nameplate photo when the revision is uncertain.
Supply condition
Know what is being quoted
The offered condition and inspection scope should be written into the quotation. Do not assume every source uses condition terms in the same way.
New product
Ask whether the unit is factory sealed, open-box or unused surplus, and confirm packaging when relevant.
Unused surplus
Confirm packaging, storage evidence, label condition and included accessories.
Refurbished product
Confirm the refurbishment source, functional test scope, cosmetic condition and warranty.
Used product
Request clear photographs and available inspection or functional-test information.
Documents & support
Technical references
Manufacturer documentation should be used for engineering, installation, safety and certification decisions. This page supports identification and sourcing; it does not replace the manufacturer manual.
Related Test, Inspection & Maintenance products
Browse category products →
Industrial productCR4320-75CR MAGNETICS CR4320-75/ CR432075 (NEW)
Industrial productFluke 971FLUKE 971 Thermohygrometer Tester brand new Opens in a new window or tab
Industrial productPXIe-83601piece NEW NI PXIe-8360 779700-01
Industrial productFluke117/323Fluke 117/323 Electricians Combo Kit Digital Multimeter Clamp Meter New
Opens in a new window or tabProduct questions
Common product questions
Find answers about product identification, compatibility, condition options and quotation requirements.
How can I identify the correct product?
Check the complete part number, series, revision and product label before requesting a quotation.
How should compatibility be confirmed?
Compare the electrical specifications, communication requirements, accessories and existing system documentation.
Which condition options are available?
Products may be offered as new, surplus, refurbished or used. The quotation will state the supplied condition.
What information is needed for a quotation?
Provide the part number, quantity, preferred condition, destination and required delivery date.
Need 6ES5 240-1AA21?
Request a QuoteSend the part number and receive a clear quotation.
Include quantity, acceptable condition, destination and timing. A label photo helps verify the request.