LIBERA Series - CONNECTORS
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TYPE 3A CONNECTORS
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Type 3A connectors were developed in Italy in 2000 as the only
connection system used to charge electrical vehicles in public
areas in mode 3. Featuring a construction derived from the Scame
IEC309 plugs, from which it inherited the snap-on quick closing
device, it is unique due to the presence of an additional CP
contact used for the pilot circuit in order to verify continuity of theprotective conductors in compliance with standard CEI 69-6. Due
its small size, it is the preferred connector for small vehicles, such
as scooters and motorcycles, with power below 3kW. Thanks to
the adaptors, the 3A plug can also be used for charging in
environments closed to third parties, such as private garages,
useing mode 1.
TYPE 3C CONNECTORS
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The type 3C connector is the connection system intended for
electric vehicles with rating above 3kW, such as automobiles,
promoted by the EV Plug Alliance, an association founded by
Scame – Schneider - Legrand, as a single European solution on
the infrastructure side. Derived from the type 3A connector, it
has the same protection characteristics against indirect contacts
and the additional pole used to verify continuity of the protective
conductor.
The evolution consists in the possibility to wire in both singlephase
and three-phase, in the increased nominal current, and in the introduction of shutters on the plug side (a necessary
requirement in case of “Smart Grid”) and the additional PP pole
for cable size identification. Due to the heavy-duty operating
conditions, special attention was paid to the choice of materials
in order to guarantee resistance to heat, to chemical agents and
to mechanical stress, such as to fall within the strict parameters
set by the automotive sector.
Moreover, the ergonomic aspect of the mobile plug was studied
in order to facilitate the opening of the protective cover (with
automatic closing against dirt in case of a fall) with only one hand.
REFERENCE STANDARDS - CONNECTORS FOR ELECTRIC VEHICLES
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IEC 62196-1 (FDIS)
Plugs, socket-outlets, vehicle couplers and vehicle inlets.
Conductive charging of electric vehicles.
Part 1: General requirements.
IEC 62196-2 (FDIS)
Plugs, socket-outlets and vehicle couplers.
Conductive charging of electric vehicles.
Part 2: Dimensional interchangeability requirements
for a.c. pin and contact-tube accessories.
IEC/EN 61851-1
Electric vehicle conductive charging system.
Part 1: General requirement.
CEI 69-6
Standardization sheet of plug and socket-outlet for the
connection electric road vehicles tot the supply network.
TECHNICAL CHARACTERISTICS - CONNECTORS FOR ELECTRIC VEHICLES
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Nominal current:
16A single-phase (type 3A)
16-32A single/three-phase (type 3C)
Nominal voltage:
0-30V (signal)
-12/+12VDC (block)
200-250VAC (single-phase)
380-480VAC (three-phase)
Frequency: 50-60Hz
Insulating voltage: 250V (type 3A) – 500V (type 3C)
Degree of protection:
IP44
IPXXD (type 3A socket, type 3C plug and socket not connected)
Operating temperature: -30°C +50°C
Minimum temperature: -35°C
Maximum temperature: +60°C
Glow Wire test / UL94:
850°C/V1 (type 3A)
850°C-960°C/V1-V0 (type 3C)
Material: Technopolymer
IK degree at 20°C: IK07 (type 3A) – IK08 (type 3C)
Number of poles:
L1-N-E-CP (type 3A)
L1-L2-L3-N-E-CP-PP (type 3C)
Saline solution: Resistant
UV rays: Resistant
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