IEC 77 Relays for Railways.
Releco has developed a specialised range of relays with
IEC 77 certification. Although certified for the railway
industry these new relays are equally suited to other
transport industry applications.
The lEO 77 certification covers extensive specifications on vibration,
working temperature range and coil voltage tolerances.
There are three different versions, one with a sensitive coil, one with
standard contacts and one with bifurcated contacts. Typical coil
voltages are 24, 48, 72 and 11OVDC and all types have a built in
suppression diode fitted across the coil. In addition to this these
relays share many of the features found on the rest of the Releco
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