Z2
Thermal-magnetic circuit breaker
General switch for the gen-set.
It protects both gen-set and related electrical circuit from over
current /short circuit.
D
Ground fault interrupter (30 mA)
Device for protection against not-direct contacts for TN and TT
systems (neutral grounded to frame)
N2
G.F.I. and circuit breaker
General switch for the gen-set. Works as both circuit breaker
and G.F.I.
2xZ2
Thermal-magnetic circuit breaker
for single-
phase sockets
Protects against short-circuits and overcurrents of electrical
plants powered by single-phase sockets.
V5 (SR)
Oil pressure indicator
Indicates engine oil pressure (bar).
Z5 (SR)
Water temperature indicator
Indicates cooling liquid temperature (C).
C2
Fuel level gauge
Indicates fuel in the reservoir (%).
H2
Voltage commutator
Selection of visualized line voltage.
U7
Engine control unit EP6
Engine control unit.
Genset stop/ start.
Handling of generator alarms.
display of alarms, Voltage, Hz, hour counter, Amps, battery vol-
tage, operation messages.
15
A.C. socket
AUX sockets for load connection.
I6
Start Local/Remote selector
Selection of engine control in use.
Local start: control on board, EP6 operated.
Remote start: external control, EAS operated.
12
Earth terminal
Ground connection point for gen-set.
X1
Remote control socket
Connection for TCM35 remote control or for a NO clean contact,
both operating only if EP6 is set to AUTO.
B3
E.A.S. connector
Connection for automatic intervention unit (AMF + ATS).
10 pin connector.
L5
Emergency button
To be pushed in case of danger. Immediate stop of the gen-set.
R3
Siren
Gen-set acoustic alarm.
S7 (SR)
Plug 230V single-phase
External supply for engine heater (mains).
A3 (SR)
Insulation monitoring
Residual current monitor (RCM) - Protection device against in-
direct contact for IT systems (GE neutral not to ground). It opens
the general circuit breaker when the isolation resistance falls be-
low the selected threshold, thereby interrupting the power supply
to the electrical system. The generator does not stop.
The regulations on the RCM must be performed by qualified per-
sonnel.
Components of frontal panel
I
GB
F
GE 20 YSX
M
32
27/09/12 84920-GB
Summary of Contents for GE 20 YSX
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