EL6688 Beckhoff EtherCAT Terminal, 1-port communication interface, IEEE 1588/PTP, master/slave
KKM Solutions is an independent parts distributor, not an authorized Beckhoff dealer — how we source.
Beckhoff EL6688 - EtherCAT Terminals - Weight: approx. 75 g; Operating Temperature: 0…55°C; Storage Temperature: -25…+85°C.
Overview
Part number EL6688 from Beckhoff, listed in Fieldbus Modules & Gateways. Specifications on file: Approvals/markings CE, CCC, UL, ATEX, IECEx; Bus system Ethernet (IEEE 802.3); Cable length up to 100 m twisted pair; Configuration no. KKM Solutions quotes this part with pricing and availability confirmed per order.
In our catalog, the EL6688 from Beckhoff is listed under the EtherCAT Terminals category. The manufacturer's published data for this part number specifies Weight: approx. 75 g and Operating Temperature: 0…55°C.
10/100 Mbit/s, IEEE 802.3u auto-negotiation, half or full duplex at 10 and 100 Mbit/s possible, automatic settings
Published specifications for this part include Storage Temperature: -25…+85°C; Relative Humidity: 95%, no condensation; Cable length: up to 100 m twisted pair; Protocol: PTPv1 (IEEE 1588-2002), PTPv2 (IEEE 1588-2008); Special Features: usable in TwinCAT as a reference clock; Number Of Ports: 1; Power Supply: via the E-bus; Approvals/markings: CE, CCC, UL, ATEX, IECEx; Vibration/shock resistance: conforms to EN 60068-2-6/EN 60068-2-27; EMC immunity/emission: conforms to EN 61000-6-2/EN 61000-6-4; Ex marking: ATEX:
II 3 G Ex ec IIC T4 Gc
IECEx:
Ex ec IIC T4 Gc; Electrical isolation: 500 V (E-bus/Ethernet). The complete technical table is shown in the Specifications tab on this page.
Specifications
| Approvals/markings | CE, CCC, UL, ATEX, IECEx |
|---|---|
| Bus system | Ethernet (IEEE 802.3) |
| Cable length | up to 100 m twisted pair |
| Configuration | no |
| Current consumption E-bus | typ. 310 mA |
| Current consumption power contacts | – |
| Data transfer rates | 10/100 Mbit/s, IEEE 802.3u auto-negotiation, half or full duplex at 10 and 100 Mbit/s possible, automatic settings |
| Distributed clocks | yes |
| Electrical isolation | 500 V (E-bus/Ethernet) |
| EMC immunity/emission | conforms to EN 61000-6-2/EN 61000-6-4 |
| Ethernet interface | 10BASE-T/100BASE-TX Ethernet with 1 x RJ45 |
| Ex marking | ATEX: II 3 G Ex ec IIC T4 Gc IECEx: Ex ec IIC T4 Gc |
| Hardware diagnostics | status LEDs |
| Number Of Ports | 1 |
| Operating Temperature | 0…55°C |
| Power Supply | via the E-bus |
| Protect. rating/installation pos. | IP20/variable |
| Protocol | PTPv1 (IEEE 1588-2002), PTPv2 (IEEE 1588-2008) |
| Relative Humidity | 95%, no condensation |
| Special Features | usable in TwinCAT as a reference clock |
| Storage Temperature | -25…+85°C |
| Vibration/shock resistance | conforms to EN 60068-2-6/EN 60068-2-27 |
| Weight | approx. 75 g |
Product details
| Manufacturer | Beckhoff |
|---|---|
| Manufacturer part number | EL6688 |
| Product category | Fieldbus Modules & Gateways |
| Published specifications | 23 attributes listed |
| Related part numbers | 15 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 EL6688?
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 EL6688?
EL6688 is made by Beckhoff and is listed in our Fieldbus Modules & Gateways category. KKM Solutions is an independent distributor, not an authorized Beckhoff dealer: we source the exact Beckhoff part number EL6688, and the quote confirms condition and lead time before you order.
Is the EL6688 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 EL6688, 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 EL6688?
No published lifecycle status is on file for EL6688. Beckhoff 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 EL6688?
Key specifications include Approvals/markings: CE, CCC, UL, ATEX, IECEx; Bus system: Ethernet (IEEE 802.3); Cable length: up to 100 m twisted pair; Configuration: no. The full specification table on this page lists every published attribute for this part.
What operating temperature is EL6688 rated for?
Per the published specification for EL6688: Operating Temperature: 0…55°C. Confirm against the full specification table on this page, or ask our order desk to verify it with the manufacturer at quote time.
How much does EL6688 weigh?
Per the published specification for EL6688: Weight: approx. 75 g. 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 EL6688 ship?
Lead time for EL6688 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
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