7
Front Panel
Internal view
1
5
2
6
43
G
Q
G
Q
N
1. GEN. C.B.ON
Lit when emergency supply switch
is switched on, power supply and
emergency supply voltages
present.
2. GEN. READY
Lit when emergency supply is
present.
3. MAIN C.B.ON
Lit when mains supply switch is
switched on, power supply and
mains supply voltages present.
4. MAIN READY
Lit when normal mains supply is
present.
Lamps
Manual changeover switch
Off/Emergency supply/
Normal supply/Automatic
5. TRIPPED
Is lit and interlocked if a 3WN6 has
tripped.
6. RESET
Reset following overcurrent trip.
KN1T KG1T
QN1
QG1
X1
KG1T (T1)
1,5 s to 30 s. Switch-on delay for the
emergency supply switch
Default: 3
s
KN1T (T2)
5 s to 100 s. Reset time for the
normal supply switch
Default: 60 s
Time-delay relay
QN1
Normal supply breaker
QG1
Emergency supply breaker
Circuit breakers
X1
Terminal block for connection of the
normal supply, emergency supply and
auxiliary supply
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