- Universal retaining clip E0: It is the only reference compatible with all auxiliary relays and socket (with the exception of latching relays and UJ-2). For D and F socket types are used 2 units, for J socket type are used 4 units.
- Metallic retaining clip E*: Each combination of relay and socket requires a specific retaining clip reference. For more info please refer to our auxiliary relays brochures.
I type relays (16 c/o contacts / 16PDT) do not require retaining clips because they are screwed to the socket.