CU8110-0120 Beckhoff
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The Beckhoff CU8110-0120 is part of the CU EtherCAT Junctions series and features a 0.9 Wh capacity using EDLC storage technology. It operates with a 24 V DC input voltage, supports a maximum output current of 4.5 A, and uses electronic input and output fuses rated at 10 A and 5 A respectively. This junction provides two 9-pin push-in connections, supports USB 2.0 and UPS-OCT interfaces, and offers a protection rating of IP20.
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Product Description:
The CU8110-0120 is a DIN-rail-mountable power buffer module produced by Beckhoff for the CU EtherCAT Junctions series. It sits upstream of decentralized controllers to provide a brief, uninterrupted 24 V DC supply, allowing field devices to save data and close connections in an orderly fashion when the primary power fails. Used next to EtherCAT couplers and I/O stations, the unit combines energy storage, electronic fusing, and branch output in one compact enclosure to streamline cabinet layouts in automated machinery.
The module accepts an input of 24 V DC and protects that feed with an electronic 10 A input fuse. During charging, the storage stage draws up to 3.2 A, and when discharge is required it can source a peak of 4.5 A to connected loads on two separately fused outputs. Internal power management limits continuous consumption to 120 W, while the buffered supply available to the field is capped at 110 W. A minimum output of 24 V DC is maintained so that voltage-sensitive controllers remain within their safe operating range. Each branch is secured by a 5 A electronic fuse, and the twin outputs let users split safety-relevant and standard loads without additional modules.
The energy reservoir relies on 0.9 Wh of EDLC storage, supplying several seconds of hold-up for typical PLC stations. The housing carries an IP20 rating and measures 100 × 100 × 90 mm, so it fits in shallow enclosures while remaining touch-safe. Communication with diagnostic tools is possible through the combined USB 2.0; UPS-OCT interface, allowing status retrieval over a single jack. Spring-cage terminals provide a 2 × 9-pin push-in connection for fast field wiring, and the casing snaps onto a TS35×15 2.3 rail to match standard panel practices. Long cycle life comes from the EDLC storage technology, which tolerates frequent charge and discharge events well.
Frequently Asked Questions about CU8110-0120:
Q: What input voltage does the CU8110-0120 require?
A: The CU8110-0120 operates with an input voltage of 24 V DC, making it compatible with standard industrial power supplies.
Q: What is the maximum output current on the CU8110-0120?
A: It supports a maximum output current of 4.5 A, allowing for reliable power delivery to connected devices.
Q: What storage technology is implemented in the CU8110-0120?
A: This model uses EDLC (Electric Double Layer Capacitor) technology for energy storage, offering quick charge and discharge cycles.
Q: What is the energy storage capacity of the CU8110-0120?
A: The device has a total energy capacity of 0.9 Wh, suitable for short-term buffering in automation applications.
Q: What type of connection does the CU8110-0120 utilize?
A: It features 2 x 9-pin push-in connection types for secure and straightforward electrical connectivity.
