
TF-RP21
Multifunction protection relay for electric traction systems: railways and metro-tramways. Approved by RFI.
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Since 2010 · Transport electronics
Multifunction protection relays, fibre-optic transducers and high-insulation converters for railway and metro-tramway systems.
The company
Telfer was founded in 2010 by a group of electronics companies with the aim of concentrating all development and production of devices dedicated to the transport world. Our product range reflects a development path built on more than a decade of experience in railway and automotive electronics.
Telfer products have been in service for years and have proven their reliability and quality.
Products

Multifunction protection relay for electric traction systems: railways and metro-tramways. Approved by RFI.
Details
Family of multifunction protection relays for electric traction systems: railways and metro-tramways.
Details
Voltage (PROBE-V) and current (PROBE-I) transducer with redundancy for power supply lines. Approved by RFI.
Details
Voltage (TF-LP-V), current (TF-LP-I) and current/voltage (TF-LP-IV) transducer.
DetailsTechnical manuals, user manuals and updates for Telfer customers. Request access: we will verify your request and activate your account.
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Quality management system certified by TÜV Italia for the design, manufacture and service of protection and control electronic devices for fixed railway and metro installations.
Download the certificateThe TF-RP21 protection relay and the PROBE I/V transducers are approved by RFI – Rete Ferroviaria Italiana.
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