Samlex Europe PST-300S-12E, Owner'S Manual

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SECTION 8 | Installation
Table 8.4 Recommended Sizing of AC Output Wiring and Breaker
Model No.
(1)
Maximum
continuous AC
output current
(2)
Minimum Ampac-
ity of AC output
Line and Neutral
conductors as per
NEC (125% times
Column 2)
(3)
Maximum size
of external AC
output Breaker
(Based on
Column 3)
(4)
Minimum size of
Line and Neutral
conductors based
on Ampacity
at Column 3
(Ampacity based
on conductor tem-
perature of 90°C)
(5)
PST-300-12
& 24 13A 16.25 16A 4Mmq
8.6 GROUNDING TO EARTH OR TO OTHER DESIGNATED GROUND
For safety, ground the metal chassis of the inverter to the Earth Ground or to the other
designated ground (for example, in a mobile RV, the metal frame of the RV is normally
designated as the Negative DC Ground). A chassis Grounding Lug (19, Fig 6.1c) has been
provided for grounding the metal chassis of the inverter to the appropriate ground.
When using the inverter in a building, connect a 10 mm
2
insulated stranded copper wire
from the above equipment grounding lug to the Earth Ground connection ( a connection
that connects to the Ground Rod or to buried metallic water pipe or to another connection
that is solidly bonded to the Earth Ground ). The connections must be tight against bare
metal. Use star washers to penetrate paint and corrosion.
When using the inverter in a mobile RV, connect a 10 mm 2 insulated stranded copper wire
from the above Chassis Grounding Lug to the Main Grounding Bus Bar of the RV (bonded
to the vehicle chassis). The connections must be tight against bare metal. Use star washers
to penetrate paint and corrosion.
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seCtIOn 8 | Installation
Terminal Block
(10, Fig 6.1a)
Relay Contact
or
Toggle Switch
note: Wiring Size: AWG #22
Relay Contact
or
Toggle Switch
Relay Contact
or
Toggle Switch
DC Power
Source
(10-33VDC)
Terminal Block
(10, Fig 6.1a)
Terminal Block
(10, Fig 6.1a)
+ –
– +
1A Fuse
1A Fuse
+12V/24V battery voltage
(10-33V) from the battery
supplying DC input to PST-3000
+
Fig 8.2(a) − 2-Wire
ON/OFF control using
switch/relay contact
Fig 8.2(b) − 2-Wire
ON/OFF control using
switched DC voltage
Fig 8.2(c) − 1-Wire ON/OF
control using switched
DC voltage from battery
supplying the inverter
Fig. 8.2: ON/OFF Control from Remote Location using External 2-Wire or 1-Wire Control
seCtIOn 9 | Operation
9.1 SWitcHinG tHe inVeRteR on/oFF
Before switching on the inverter, check that all the AC loads have been switched off. The
3-Position Rocker Switch marked oN/off/EXT. Switch (1, fig 6.1a) on the front panel of the
inverter is used to switch oN and switch off the inverter. This switch operates a low power
control circuitry, which in turn controls all the high power circuitry.
The unit can also be switched oN/off remotely as follows:
•
Through optional Remote Control Model RC-300 connected to Modular Jack RJ-50
(9, fig 6.1a). Read optional Remote Control Manual for RC-300 for details.
• Using 2-wire or 1-wire External Switching Control. See details under heading "oN/off Con-
trol from Remote location using 2-Wire or 1-Wire External oN/off Control" on page 38.
!
cAUtion!
Please note that the oN/off switch is not switching the high power battery input
circuit. Parts of the DC side circuit will still be alive even when the switch is in the
off position. Hence, disconnect the DC and AC sides before working on any circuits
connected to the inverter.
When the inverter is switched oN, the Green LED marked "PoWER" (2, fig 6.1a) will be
lighted. This LED indicates that the input section of the inverter is operating normally. Under
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