• Global Certificate: ISO 9001 : 2015

The Servo-contact relays – a brand created by Techno-Elec – enabled the company to become the privileged partner of subways, streetcars, trains, TGV and substations across the world, as well as in all the sectors where monitoring, protecting, measuring or controlling through electrical relays requires a foolproof reliability. Read more

All our relays

Techno-Elec relays operation is based on the principle of electromechanical magnetic circuit.

Illustration Relais de courant
Current relays
current detection, threshold control, overload detection,
Illustration Relais de tension
Voltage relays
voltage detection, catenary voltage detection, threshold control,
Illustration Relais differentiel
Differential relays
DC or AC current differential protection, AC or DC voltage differential protection,
Illustration Relais sur demande
On request relays
Creation of more specific relays on request

Features and benefits

High level galvanic insulation
No need for auxiliary power supply
High reliability, no need for maintenance
High resistance to strong overloads
Low magnetic remanence
High precision and sensitivity
Low energy consumption
From 1 mA to 15 000 amp and 10 mV to 10 000 volts
Compliant with CEI 77 standard

Our references in the world

Rolling stock, substations and multiple electrical installations are equipped with ou relays in more than 60 countries around the world.