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The Beckhoff EL6688 is an ethercat terminal. The listed technical data shows communication via 10BASE-T/100BASE-TX Ethernet with 1 x RJ45, based on the manufacturer's datasheet. It is supplied by SHLY-PLC, an independent industrial-automation distributor: every unit is visually inspected and functionally checked before dispatch, held in ready stock and shipped worldwide for maintenance, spares and retrofit use. Share your application or existing part number and our team will confirm fitment and comparable in-stock alternatives.
Technical parameters compiled from the manufacturer data sheet and reference documentation.
| Technical Specifications | |
| Other | |
| Number of ports | 1 |
| Bus system | Ethernet (IEEE 802.3) |
| Ethernet interface | 10BASE-T/100BASE-TX Ethernet with 1 x RJ45 |
| Transmission rate | 10/100 Mbit/s, IEEE 802.3u auto-negotiation, half or full duplex at 10 and 100 Mbit/s possible, automatic settings |
| Cable length | up to 100 m twisted pair |
| Hardware diagnostics | status LEDs |
| Power supply | via the E-bus |
| Distributed clocks | yes |
| Electrical isolation | 500 V (E-bus/Ethernet) |
| Protocol | PTPv1 (IEEE 1588-2002), PTPv2 (IEEE 1588-2008) |
| Configuration | no |
| Current consumption power contacts | – |
| Current consumption E-bus | typ. 310 mA |
| Special features | usable in TwinCAT as a reference clock |
| Weight | approx. 75 g |
| Operating temperature | 0…55°C |
| Storage temperature | -25…+85°C |
| Relative humidity | 95%, no condensation |
| 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 |
| Protect. rating/installation pos. | IP20/variable |
| Approvals/markings | CE, CCC, UL, ATEX, IECEx, cFMus |
| Ex marking | ATEX: II 3G Ex ec IIC T4 Gc IECEx: Ex ec IIC T4 Gc cFMus: Class I, Division 2, Groups A, B, C, D Class I, Zone 2, AEx ec IIC T4 Gc |
| Design form | compact terminal housing with signal LEDs |
| Material | polycarbonate |
| Side by side mounting by means of | double slot and key connection |
| Wiring | specific push-in connection |
| Dimensions (W x H x D) | 24 mm x 100 mm x 52 mm |
| POP | compliant |
| RoHS | compliant with exemption |
| CA Prop65 | www.beckhoff.com/prop65 |
Model variants, options and firmware revisions can affect fitment. Before ordering the Beckhoff EL6688 ethercat terminal, share your existing part number or project requirements and our team will cross-reference comparable in-stock Beckhoff units and verify compatibility. This listing is provided by an independent industrial-automation distributor; brand names and part numbers are used for identification only.
A: Each EL6688 is inspected and functionally checked before sale. Contact us for the current stock condition and quantity.
A: In-stock orders placed before 14:00 ship the same business day. Standard worldwide delivery is about 5-8 business days, express shipping is available and orders over $500 ship free.
A: Yes. Share your existing part number or application and our technical team will verify compatibility and provide cross-references to comparable in-stock models.
EL6688 · Technical reference data · Independently supplied by SHLY-PLC
Place your order before 14:00 for earliest possible shipment handover. With round-the-clock transit operated by our partnered global logistics providers, parcels reach most international destinations following routine customs processing. Economy shipping takes 5–8 business days, while express delivery arrives in 5–8 business days, both subject to customs clearance progress.Shipping fees will be charged for all orders under USD 500, and the exact shipping cost will be determined and collected by our logistics carriers. Shipments to remote international regions will incur additional courier surcharges to offset extra cross-border transportation costs.
Factory warranty service is not applicable to this industrial control equipment, and extended warranty packages are not provided for this item.
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