Overcurrent Protection for PoE

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Fuses for Power over Ethernet connections

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Overcurrent Protection for PoE
Overcurrent Protection for PoE

Data networks based on the Ethernet standard are in widespread use around the world and a lot of different devices are tied into them. Ethernet cable is also increasingly being used to supply devices with power in addtition to data over a single cable. It is a convenient solution and there is no need for a certified technician that might otherwise be required to install mains power. 

Overcurrent protection

The higher the current, the faster malfunctions can lead to fires. Suitable devices to protect against overcurrents must be installed in both PSEs (power sourcing equipment) and PDs (powered device). The simplest, most cost-effective and reliable solution for protection against overcurrent is a chip fuse. In addition, they take very little space. The USF 0603 from SCHURTER is the ideal fuse for PoE applications. This thin-film fuse measures just 1.6 mm long, 0.8 mm wide and only 0.6 mm high. It offers overcurrent protection with super-quick-acting characteristics in a range of rated currents from 500 mA to 5 A. It stands out due to a breaking capacity of 50 A at 32 V over the entire range of rated currents. Even today, such breaking capacity is unmatched in fuses of this size. Additional fuses suited for overcurrent protection in PoE applications are on offer: All fuses are approved to cURus.

Posted on June 23, 2017 - (1573 views)
SCHURTER AG
Werkhofstrasse 8-12
6002 Luzern - Switzerland
+41-41-3693111
+41-41-3693333
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Description

SCHURTER continues to be a progressive innovator and manufacturer of electronic and electrical components worldwide. Our products ensure safe and clean supply of power, while making equipment easy to use. We offer a broad range of standard products including circuit protection, connectors, EMC products, switches and input systems, as well as electronic manufacturing services. Moreover, SCHURTER is ready to work with our customers to meet their application specific requirements, not covered in our standard range. You can rely on SCHURTER's global network of companies and partners to guarantee a high level of local service and product delivery.

Products and Services: Circuit Protection: Fuse-Links, Fuseholders, Circuit Breakers for Equipment, Voltage Selectors Connectors: IEC Appliance Couplers, Appliance Inlets, Connectors, Appliance Outlets, Plugs, Power Supply Cords, Interconnection Cords EMC Products: 1- and 3-phase Line Filters with and without IEC Appliance Inlets, Sine Filters, Chokes and Pulse Transformers Switches: Metal Line Switches, Printmount and Frontpanel Switches, Public Transport Switches, Indicators Input Systems: Metal- and Membrane Keypads, Touch Screens, Touch Panels, Cabinet and Housing Systems. Services: Electronic Manufacturing Services for the Electronic Industry, Development of Customer specific Products, Support of pre Compliance Measurement for EMC topics

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