32 Maximum Power Point Tracking Charge Controllers

32 Maximum Power Point Tracking Charge Controllers

Solar Converters, Inc. - Maximum Power Point

Tracking charge controllers.

We also stock a wide selection other items from Solar Converters,

please our 40 Solar Converters, Inc. Products page to find what you need.

Maximum Power Point Tracking charge contollers offer

some advantages over conventional charge controllers.

The most widely known advantage is an increase in useable power going into

your batteries from a photovoltaic array.

When a photovoltaic module is connected in a system which has a battery, the

battery acts as a limiter to the voltage output of the array.

This is one of the reasons you see two voltages listed on the back of your

solar panel.

One voltage is the open circuit voltage, this is the voltage output the panel will

produce under full sun when you connect a volt meter to it.

As soon as a battery(s) or load is introduced into the system the voltage drops

to the operating voltage or less.

An MPPT charge controller "fools" the panels into producing a higher voltage

by "eliminating" their view of the battery(s) in the system.

This way they operate on their maximum power point voltage.

This allows more power to go into the battery(s), up to 30% in some instances.

A more important advantage of MPPT to many people is that it allows you to use

an array with a higher voltage output than the operating voltage of the battery

system.

For instance, if the array has to be placed a great distance away from the charge

controller and battery, the wire size must be very large to reduce the voltage drop.

With an MPPT controller, you can wire your array for 24 or 48 volts (depending on

the controller and your panels) and bring the power into a 12 or 24 volt battery

system.

This greatly reduces the wire size needed while retaining the full output of the

array.

With the cost of heavy gauge wire, this can be a significant savings.

One of the stand-alone systems at our location is comprised of four

Solarex Millenium 48 volt / 43 watt modules.

These are combined in parallel below the rack in a fused disconnect.

From there, the wire run to the back of the building is about 100 feet to

an outdoor disconnect.

Inside the disconnect is a Solar Converters mod. PT 48 - 8B 12/24

charge controller which steps the voltage down to 24 volts to feed

a 24 volt gel cell battery bank to supply a 24 volt true sine wave inverter

and 24 volt interior lighting.

The voltage drop on the long wiring run is minimal as the controller

allows the modules to operate at, or near their open circuit voltage of

103 volts d.c.

A few of our customers, due to trees or terrain, have wiring runs

of up to 300 feet.

When you can not mount the modules close to your batteries this

is the only way to set up a successful system.

Many people have gotten deals on photovoltaic

modules with odd output voltages.

Some of these panels were designed strictly for

a specific grid-tie application and many have

high wattage ratings.

This is most common in "24 volt" and "48 volt"

panels.

If your modules do not have a standard voltage

please call us at (562) 423 - 4879 or call

Solar Converters at (519) 824 - 5272, to have an

MPPT controller set up to your panel voltage at the

factory.

There is no extra cost for this but as they would not

ship from our standard inventory the lead time can

be one to two weeks.

If you are not sure, just call us.

For more information about Maximum Power Point Tracking

charge controllers please click onto the following link:

MPPT Charge Controllers - FAQ

We stock the following MPPT charge controllers but can special

order any of the Solar Converters, Inc. controllers.

It takes from seven to fourteen days for us to get them in.

These charge controllers carry a one year factory warranty.

Everything priced on this page is in stock

and ships from our location in Long Beach,

California.

We ship Monday through Saturday.

photo courtesy of Solar Converters, Inc.

Model # PT 12/24 - 3

This simple to use MPPT controller allows you to do any one of the

following:

charge a 24 volt battery(s) from a 24 volt array

charge a 12 volt battery(s) from a 24 volt array

charge a 12 volt battery(s) from a 12 volt array

Supplies 15 to 30% (depending on conditions) more current into discharged

batteries than a conventional controller.

Has overvoltage protection of output at float level.

Specifications:

Input voltage: 0 to 50 volt d.c.

Input current: 0-4 amps nominal

Output voltage: factory set at 13.8 / 28.2 volt

Output current: 3 amps continuous (provided sufficient solar power available)

self consumption while charging = 0.02 amps

self consumption while at rest = 0.01 amps

setpoint tolerance (+/-) = 5%

efficiency = 96%

Dimensions & weight:

3.0" by 2.0" by 0.9"

app. 5 ounces

Connections:

Power: battery and pv - 16 ga. leads

Setup: jumper selectable for 12/24 battery and/or panel operation

Operating temperature:

- 40 to + 60 degrees C

Humidity:

0 to 90% non-condensing

These can also be ordered in special voltages for non lead-acid

battery use.

8PRICE: ( PT 12/24 - 3 ) $ 74.50 each

The following Verisign / Go eMerchant Add To Cart button offers several

shipping options based on the order weight and your zip code.

____________________________________________________

Model # PT 12/24 - 5 TC

This simple to use MPPT controller allows you to do any one of the

following:

charge a 24 volt battery(s) from a 24 volt array

charge a 12 volt battery(s) from a 24 volt array

charge a 12 volt battery(s) from a 12 volt array

Supplies 15 to 30% (depending on conditions) more current into discharged

batteries than a conventional controller.

Has overvoltage protection of output at float level.

Specifications:

nominal system voltage = 12 or 24 volts

maximum array voltage = 50 volts

maximum array amperage output = 5 amps

self consumption while charging = 0.02 amps

self consumption while at rest = 0.01 amps

setpoint tolerance (+/-) = 5%

float setting = 14.1 volts for a 12 volt battery and 27.2 volts for a 24 volt

battery

float voltage setting can be adjusted in the field by the used with an internal

pot - please click here for more information: setting float voltage

temperature compensation (milli-volts per degree C) = - 4

efficiency = 96%

Dimensions & weight:

4.5" by 2.2" by 2.2"

app. 1/2 pound

Connections:

Power: battery and pv - 16 ga. leads

Setup: jumper selectable for 12/24 battery and/or panel operation

Operating temperature:

- 40 to + 60 degrees C

Humidity:

0 to 90% non-condensing

This model has a temperature sensor which can be attached to

one of the batteries in your battery bank which allows the

controller to compensate for changes in battery temperature.

There are two led indicators, one shows charging and the other shows

battery full.

These can also be ordered in special voltages for non lead-acid

battery use.

8PRICE: ( PT 12/24 - 5 ) $ 88.25 each

The following Verisign / Go eMerchant Add To Cart button offers several

shipping options based on the order weight and your zip code.

____________________________________________________

Model # PT 12/24-10 TC

This unit has the same specifications as the the PT 12/24-5 except that

it can accept an array input current of 10 amps.

It also has a temperature compensation sensor which adjusts charging

voltage to compensate for battery temperature changes.

There are two led indicators, one shows charging and the other shows

battery full.

8PRICE: ( PT 12/24 - 10 TC ) $ 107.35 each

The following Verisign / Go eMerchant Add To Cart button offers several

shipping options based on the order weight and your zip code.

___________________________________

Remote Temperature Sensor ( SC - TC - 2 ) $ 10.00 each

The following Verisign / Go eMerchant Add To Cart button offers several

shipping options based on the order weight and your zip code.

____________________________________________________

Model # PT 36 - 5

For charging a 36 volt battery bank from a 36 volt array.

Input Voltage = 0 to 80 volts d.c. PV array, approx. 45 volt nominal operating

Input Current = 0 to 5 amps nominal

Output Voltage = factory set at 42.0 volts

Output Current = 5 amps continuous (provided there is sufficient solar power)

Efficienty = greater than 94% over 20% charging load

Temperature Range = - 40 deg. C to + 60 deg. C

An external blocking diode is NOT needed.

"No user load" overvoltage regulates output to "float" voltage even with

no battery connected.

Has charging and battery full indicators.

Dimensions: 4-7/8" long (including mounting tabs on the ends) by 2-1/4" wide by 2" tall.

These are very popular for use with a solar charged 36 volt golf cart .

8PRICE: ( PT 36 - 5 ) $ 104.00 each

The following Verisign / Go eMerchant Add To Cart button offers several

shipping options based on the order weight and your zip code.

____________________________________________________

Model # PT 48 - 5

For charging a 48 volt battery bank from a 48 volt array.

Input Voltage = 0 to 100 volts d.c. PV array, approx. 65 volt nominal operating

Input Current = 0 to 5 amps nominal

Output Voltage = factory set at 56.0 volts

Output Current = 5 amps continuous (provided there is sufficient solar power)

Efficienty = greater than 94% over 20% charging load

Temperature Range = - 40 deg. C to + 60 deg. C

An external blocking diode is NOT needed.

"No user load" overvoltage regulates output to "float" voltage even with

no battery connected.

Has charging and battery full indicators.

Dimensions: 4-7/8" long (including mounting tabs on the ends) by 2-1/4" wide by 2" tall.

8PRICE: ( PT 48 - 5 ) $ 95.00 each

The following Verisign / Go eMerchant Add To Cart button offers several

shipping options based on the order weight and your zip code.

____________________________________________________

Remote Temperature Sensor TC-2 ( SC - TC - 2 ) $ 10.00 each

The following Verisign / Go eMerchant Add To Cart button offers several

shipping options based on the order weight and your zip code.

____________________________________________________

To set the float voltage, start with a fully charged battery. Connect the

photovoltaic module(s), charge controller and battery as shown in the

instruction manual. Using a digital voltmeter, measure the output voltage

of the controller while adjusting the internal pot. The battery must be

fully charged for the controller to go into float mode. For more information

please contact Solar Converters, Inc.

As always, wear eye protection when working on or around

batteries.

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