ISO 9001:2008
www.fanox.com
SIAC116B1011AB_Rev. 05
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5.
OPENING MECHANISM
The trip is associated to a striker. The type of trip is a polarized trip, this is, the trip is
associated to a striker. There are a lot of models of strikers in the market, with different trip
energies, being for example 50 mJ (0,05W·s) and operation voltage of 6V, or 135 mJ
(0,1W·s) and operation voltage of 24V.
The opening mechanism is activated by means of a striker. The activation of the trip
generates a pulse train.
The
Trip Voltage Level
setting allows adjusting the trip voltage level required by the
selected striker. The default value is 17 Vdc, although there are several options:
•
12 Vdc
•
17 Vdc
•
22 Vdc
•
24 Vdc
The equipment will allow the trip when it gets the selected trip voltage, so if a lower level
that the required by the striker is adjusted, it may result on tripping without enough energy
and not activating the striker.
On the other hand, if a higher level that the required by the striker is selected, the
activation of the striker is guaranteed, however, the fault trip time during start-up may be
increased. Fanox encourages selecting the correct value of this critical setting and offers
its expertise at any doubt.
Striker
The striker is a bistable device with a simple action. The striker shaft is moved by a spring.
The striker is activated by a polarized low-power electrical signal, supplied by the relay if a
fault occurs. Resetting the shaft to its position is done manually. Resetting the striker has
to be done in such a way as to guarantee that the opening mechanism is closed. This is
normally done manually.
Due to the existing variety in the market, it is important to check the voltage and the
necessary energy for its activation.
