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Connecting to multi-wire branch circuits

Do not directly connect the hot side of the  120 VAC of the inverter model to the two hot
legs of the 120 / 240 VAC electrical breaker  panel / load centre where multi-wire
( common neutral ) branch circuit wiring method is used for distribution of AC power.
This may lead to overloading / overheating of the neutral conductor and is a risk of fire.

A split phase transformer ( isolated or autotransformer ) of suitable wattage rating ( 25 %
more than the wattage rating of the inverter )  with primary of  120 VAC and secondary of
120 / 240 VAC ( Two 120 VAC split phases 180 degrees apart) should be used. The hot
and neutral of the 120 VAC output  of the inverter should be fed to the primary of this
transformer and the 2 hot outputs ( 120 VAC split phases ) and the neutral from the
secondary of this transformer should be connected to the electrical breaker panel / load
centre.

AC output connections - PSE-24125 A / PSE-24175A

These inverters use NEMA 5-15R receptacles for connecting the AC output to devices
and appliances fitted with a NEMA 5-15P plug. In these NEMA 5-15 R receptacles, two
rectangular slots are connected to the current-carrying conductors of the AC power source
inside the inverter. The round slot is the “equipment grounding” connection and is
internally connected to the metal chassis of the inverter.

CAUTION! :

 

In these NEMA 5-15R receptacles, the current carrying conductor connected to the

longer rectangular slot is isolated from the metal chassis of the inverter. Hence, when the metal
chassis of the inverter is connected to the earth ground, the longer rectangular slot is not grounded
to earth ground. The longer rectangular slot is, therefore, not a “neutral”. Do not touch this slot as it
will be at an elevated voltage with respect to the metal chassis / earth ground and may produce an
electrical shock when touched.

AC output connections -PSE-24275A

The AC output connections have three insulated conductors – one black and one white
for carrying current and one green for “equipment grounding”. The green color “equip-
ment grounding” conductor is connected to the metal chassis of the inverter. These three
conductors exit through a pocket in the front side of the inverter. These three conductors
are used for hard-wiring the inverter to a breaker panel.  Use the insulated wire nuts / butt
splices provided to splice the wires.

 For drawing the full rated power of the inverter,

the output conductors should be hard wired to a suitable breaker panel.

A separate plate which has a NEMA 5-15R receptacle wired through a 15 A beaker has
also been provided. This plate with the receptacle and breaker fits in the pocket through
which the output conductors exit the inverter. The NEMA 5-15R receptacle can be
connected to the three output conductors if the AC power output is required to be drawn
from the front panel of the inverter. Use the insulated wire nuts / butt splices provided to
splice the wires.

 Please note that the NEMA 5-15R receptacle is wired through a 15 A

breaker and hence, the power delivered from this receptacle will be limited to 1500
watts only.

CAUTION! : 

The white current carrying conductor is not bonded to the metal chassis of the

inverter. Hence, when the metal chassis of the inverter is connected to the earth ground, this white/
current carrying conductor will not be grounded to earth ground. The white conductor is, therefore,
not a “neutral”. Do not touch this conductor as it will be at an elevated voltage with respect to the
metal chassis / earth ground and may produce electrical shock

Page 26

Содержание PSE-24125A

Страница 1: ...Owner s Manual Please read this manual before operating your Inverter DC AC Inverters PSE 24125A PSE 24175A PSE 24275A...

Страница 2: ...s that may not Operate Correctly with Modified Sine Wave Inverters 12 Limiting Electromagnetic Interference 13 Layout 14 Features Controls and Indications 15 16 Specifying Batteries Chargers andAltern...

Страница 3: ...entilation do not install in a low clearance compartment Preventing fire and explosion hazards Working with the inverter may produce arcs or sparks Thus the inverter should not be used in areas where...

Страница 4: ...AC power This may lead to overloading overheating of the neutral conductor and is a risk of fire A split phase transformer isolated or auto transformer of suitable wattage rating 25 more than the watt...

Страница 5: ...ble for use in buildings including homes for recreational vehicles boats and portable applications Will it be connected to the utility grid in some way Electrical conventions and safety standards diff...

Страница 6: ...r will further limit its ability to start a motor A battery bank that is undersized in poor condition or has corroded connec tions can be a weak link in the power chain The inverter cables and the bat...

Страница 7: ...VAC To obtain 240 VAC from a 120 VAC inverter use a 120 VAC to 240 VAC transformer If you do not already have a pump installed you can get a 120 volt pump if you don t need more than 1 2 HP Idle powe...

Страница 8: ...d for resistive type of loads that have unity 1 Power Factor In a reactive type of load like electric motor driven loads florescent lights computers audio video equipment etc the phase of the sine wav...

Страница 9: ...ected to earth Examples are the neutral conductor in AC wiring and the negative conductor in many DC systems A grounded system is a system in which one of the current carrying conductors is grounded A...

Страница 10: ...ected to a black current carrying conductor which is also called Line Live Hot pole The other flat pin is connected to the white current carrying conductor also called the Neutral Return Cold pole The...

Страница 11: ...nection that connects to the ground rod or to the 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 pe...

Страница 12: ...the value of the above high voltage See the diagram below The output wave form of the inverter is a modified sine wave see the diagram given below In a sine wave the voltage rises and falls smoothly...

Страница 13: ...ance of low frequency filter capacitors power factor improvement capacitors NOTE Electric motors and microwaves will run hotter when operated with modified sine wave Please ensure proper ventilation f...

Страница 14: ...pon a number of factors external to the power supply like proximity of the inverter to the EMI receptors types and quality of connecting wires and cables etc EMI due to factors external to the inverte...

Страница 15: ...Page 14 LAYOUT g f PSE 24125A PSE 24175A Rear View Bottom View a c d e b h i PSE 24275A Front View b a c d e k j f g h i Rear View...

Страница 16: ...erature LED Indicator Light This light will turn RED and the inverter will automatically shut down when the internal temperature exceeds the designed parameters for safe operation When this occurs tur...

Страница 17: ...ed as an accessory Use this receptacle if you require power to be drawn from the front panel This will require connection As this receptacle e is fed through a 15A breaker j the power drawn from here...

Страница 18: ...of deep cycle lead acid batteries wet and sealed A wet cell battery has a high tolerance to overcharg ing However it will release hydrogen gas when charging that must be properly vented and the water...

Страница 19: ...is not linear but is more or less according to the table below Table 1 Battery Capacity versus Rate of Discharge Hours of Discharge Usable Capacity 20 100 10 87 8 83 6 75 5 70 3 60 2 50 1 40 Using th...

Страница 20: ...l connection of batteries When two or more batteries are connected in series their voltages add up but their AH capacity remains the same For example when two 12 V 105 AH batteries are connected in se...

Страница 21: ...formula 2 above the DC current to be delivered by the 24 V batteries 1000 W 20 50 Amperes Next the energy required by the load in Ampere Hours AH is determined For example if the load is to operate fo...

Страница 22: ...of batteries through a battery isolator of appropriate capacity The battery isolator is a solid state electronic circuit that will allow the alternator to charge the two sets of batteries when the eng...

Страница 23: ...are isolated from the chassis Similarly the neutral pole of the AC receptacles the neutral wire is not bonded to the chassis System grounding to suit the national local electrical codes is to be unde...

Страница 24: ...to reduce the risk of dropping a metal tool on the battery It could spark or short circuit the battery or other electrical parts and could cause an explosion Remove metal items like rings bracelets an...

Страница 25: ...stranded copper wire cables rated at 90 C minimum Do not use aluminium cable as it has higher resistance per unit length Cables can be bought at a marine welding supply store The cables from the batt...

Страница 26: ...e DC side cables To further reduce RF interference shield the cables with sheathing copper foil braiding Taping battery cables together to reduce inductance Do not keep the battery cables far apart In...

Страница 27: ...therefore not a neutral Do not touch this slot as it will be at an elevated voltage with respect to the metal chassis earth ground and may produce an electrical shock when touched AC output connection...

Страница 28: ...tal Use star washers to penetrate paint and corrosion Grounding of PSE 24275A to earth or to other designated ground Please see details regarding grounding under AC Power Distribution and Grounding on...

Страница 29: ...ill be indicated It should read between 24 to 26 volts if the batteries are fully charged Switch on the AC load s The green LED bar graph current indicator d will show the current drawn by the inverte...

Страница 30: ...ge at the DC input terminals will be lower than the voltage at the battery terminals due to the voltage drop in the battery cables and connectors The drop in the voltage at the DC input terminals of t...

Страница 31: ...per limit the AC output of the inverter is shut down temporarily The red Over Temp LED b is lighted and a buzzer is sounded The unit will automatically reset after the unit has cooled down Shut down d...

Страница 32: ...the cause of the shut down REMEDY 1 Check the continuity of the battery input circuit 2 Check that the battery fuse is intact Replace if blown 3 Check that all connections in the battery input circui...

Страница 33: ...ture or insufficient air exchange REMEDY 1 Reduce the load 2 The load is not suitable as it requires higher power to operate Use an inverter with higher power rating 1 Reduce the load 2 The load is no...

Страница 34: ...for connection to external distribution panel Receptacle NEMA 5 15R Dimensions W x D x H mm Weight Kg This is the active power for resistive type of loads which have power factor 1 Reactive loads may...

Страница 35: ...a reasonable number of opportunities to do so Warranty service shall be performed only by the Warrantor Any attempt to remedy the defect by anyone other than the Warrantor shall render this warranty v...

Страница 36: ...604 525 3836 Fax 604 525 5221 Website www samlexamerica com Head Office Samlex America Inc 103 4268 Lozells Ave Burnaby BC Canada V5A 0C6 USA Shipping Warehouse Kent WA Canadian Shipping Warehouse Del...

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