Solar-Catalog.com 2008
Charge Controllers
Catalog Contents
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Charge Controllers – PWM and MPPT

A charge controller is an electronic voltage regulator, used in off-grid systems and grid-tie systems with battery backup, that controls the flow of power from the charging source to the battery. The charge controller automatically tapers, stops, or diverts the charge when batteries become fully charged. Some charge controllers have metering and data logging capability to show system operation parameters and battery charge status. Some have low battery load disconnect to prevent over-discharge and some have built-in light controls to turn on lights at night.

Charge controller capacities ranges from 4 amps to 80 amps and multiple charge controllers can be used in parallel for larger systems. The simplest charge controllers turn off the charge when the battery reaches a voltage near full charge, and turn it on when the voltage drops about one volt.

Pulse width modulated (PWM) charge controllers turn on an off very rapidly, holding the batteries at full charge, making better use of available power.

Maximum power point tracking (MPPT) charge controllers take power from the charging source at a voltage where it can put out the most power (its maximum power point) and convert that to the correct voltage to charge the battery. This technique significantly increases the power from a solar array, especially when batteries are discharged, battery voltage is low, and the temperature is low causing the maximum power point voltage of the solar modules to be high. Most MPPT charge controllers can take an array voltage much higher that what is required by the batteries, allowing the use of modules with higher peak power voltage, designed for grid-tie use. A higher voltage solar array also allows smaller wire to be used between the array and the charge controller, which can save wire and installation cost in large systems. Maximum power point tracking allows a PV array to deliver up to 30% more power to a battery than it would if it were connected directly to the battery.

 

 

MPPT CHARGE CONTROLLERS

Maximum Power Point Tracking

Maximum Power Point Tracking (MPPT) allows a PV array to deliver up to 30% more power to a battery than it would if it were connected directly to the battery. This type of charge control costs more, but under certain conditions can be very cost-effective. A 20% power increase on a 1000-watt PV array is like getting 200 additional watts. A photovoltaic (PV) array is a constant current device. The current (amps) from a PV module remains relatively constant over a wide range of voltage. For example a typical 75-watt module delivers 4.45 amps at up to 17 volts when the sky is clear and temperature is cool. Traditional PV controllers connect the PV array directly to the battery until it reaches a full charge voltage. When this 75-watt module is connected directly to a battery in a low state of charge it will begin charging at 12 volts. The PV panel still provides about the same current, but, because PV output voltage is lower, it can only deliver 53 watts to the battery. This wastes up to 22 watts or 30% of the available power. MPPT charge controls use this extra voltage to boost charging amps to the battery. Outback and Blue Sky charge controls also allow the use of an array voltage higher than the nominal battery voltage so smaller wire may be used.

Since the battery voltage rises when charging and the maximum power point of the PV module falls as it warms up, a 10 to 20% increase is more realistic. MPPT charge controls are most effective in cool climates and/or when the PV array is charging batteries that are at a low state of charge.

 
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APOLLO CHARGE CONTROLLER
T80 Turbo Charger
The T80 TurboCharger integrates maximum power point tracking, battery charge management, state-of-charge information and communications into a single device. It can deliver 80 amps continuous output to 12-, 24- or 48-volt battery systems from PV arrays with open circuit voltage up to 140 VDC (150 V absolute maximum voltage). Wire modules in series to use smaller wire between the array and charge controller. The T80 captures up to 35% more power from the PV array. Their MPPT algorithm starts early and locks onto the peak power during rapidly changing insolation and temperature. The controller supports flooded lead acid (FLA), GEL and absorbed glass mat (AGM) batteries. Four-stage charging with adjustable set points for all parameters.

The T80 Turbo-Charger produces full rated power without derating up to 40oC ambient temperature. Above that, the output current is reduced gradually to protect the life of the T80 and then automatically ramped up as the temperature decreases.

High efficiency power circuits and robust thermal design minimize heat generation. The internal temperature-controlled variable speed fan runs just fast enough to maintain optimum reliability. UL Listed. Dimensions are 15.2" x 8.5" x 4.4" and weight is 22 lbs.

The T80 includes a built-in energy monitor using TriMetric technology from Bogart Engineering. It tracks power production and consumption to calculate the energy remaining in the battery. State of charge (SOC) is displayed in percent full, amphours, watt-hours and bar graph format on a 4-line 20-character LCD with back light. In addition, 90 days of energy harvest history is stored in the T80. The on-board RS-232 and slot for optional add-in cards provide data communication to remote readouts, PCs and the internet. System performance can be monitored remotely and the T80 accepts software upgrades from a PC.

Two independently programmable SPST relays can be used to control external devices based on battery voltage, charge or discharge current or battery state of charge. Contact rating is ½ amp at up to 50 VDC.

Optional wired and wireless displays are available. The RD wired display can be up to 100 feet from the controller using 4-conductor telephone cable. The RD100 wireless display can be 100 feet away from controller in buildings and 300 feet line-of-sight.  Its built-in rechargeable batteries last up to 3 months and can be recharged from 12, or 24 VDC or 115 VAC.

Optional network card allows you to stack up to 16 T80 controllers on one battery bank. Add a network card to each controller and connect with CAT-5 cables. One controller acts as a master and the others as slaves.

Model Description Item code MSRP Price Purchase
   T80 Apollo T80 charge controller 20.7080 $849 $825  
   RD-WIRED  Wired remote display 20.7085 $199 $180  
   RD100 Wireless remote display 20.7087 $399 $365  
   RCL100 Wireless computer link 20.7089 $199 $180  
   ASNET Network option card 20.7091 $199 $180  
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OUTBACK CHARGE CONTROLLERS

OutBack MX60 MPPT Charge Controller

Maximum power point tracking enables a PV system to achieve its highest possible performance. Rated for up to 60 amps of DC output current, the OutBack MX60 can be used with battery systems from 12 to 60 VDC with PV open circuit voltage as high as 140 VDC. The MX60’s setpoints are fully adjustable to allow use with virtually any battery type, chemistry and charging profile. The OutBack MX60 allows you to use a higher output voltage PV array with a lower voltage battery - such as charging a 12 or 24 VDC battery with a 48 VDC PV array. This reduces wire size and power loss from the PV array to the battery/inverter location and can maximize the performance of your PV system.

Array size can be up to...
  • 707 watts when charging 12 volt batteries
  • 1,500 watts when charging at 24 volts
  • 3,000 watts when charging at 48 volts
The OutBack MX60 comes standard with an easy to use and understand display of the PV system’s performance. The four line, 80 character, backlit LCD display is also used for programming and monitoring of the system’s operation. The OutBack MX60 can also be connected to the OutBack MATE system controller and display to allow monitoring of up to eight MX60 controllers from a distant location - up to 300 feet away. The MATE also includes an optoisolated RS232 port for connection to a PC computer for data logging and system monitoring.

Dimensions 14.5"H x 5.75"W x 5.75"D

Weight 12 lb.

2-year warranty

 

OutBack
model
Description Code MSRP Price Purchase
MX60 OutBack 60A MPPT charge controller 20.2015 $649 $525
RTS Remote temperature sensor with 20' cable 30.4190  $29

$28

MATE System controller – shipped with a 50' cable 30.4180 $295 $255
MATE-B Black version of the MATE above 30.4180-B $295 $255
MATE-BF Flush mount version of the MATE 30.4181 $295 $255


OutBack FLEXmax 80 MPPT Charge Controller

The FLEXmax 80 is the latest innovation in Maximum Power Point Tracking (MPPT) charge controllers from OutBack Power Systems. The FLEXmax 80’s innovative MPPT algorithm is both continuous and active, increasing your renewable energy yield up to 30%. Thanks to enhanced cooling, the FLEXmax 80 can operate at its full 80 amp maximum current rating in ambient temperatures as high as 104°F (40°C).


Included in the FLEXmax 80 are all of the features first developed by OutBack Power in the revolutionary MX60, such as support for a wide range of nominal battery voltages and the ability to step-down a high voltage solar array to recharge a low voltage battery. A built-in backlit display shows status information at the touch of a button. Enhanced network communications allow the FLEXmax 80 to be remotely programmed via the optional MATE system display and controller.


The new FLEXmax 80 is the only choice when you demand a high performance, efficient and customizable charge controller for your advanced power system.

OutBack model Description Input battery voltage Output amps MSRP Price Purchase

FLEXMAX-80

80 AMP MPPT CHARGE CONTROLLER 12,24,36, 48, 60 80 $749 $635
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BLUE SKY CHARGE CONTROLLERS

Blue Sky SB2000E MPPT Charge Control

The Solar Boost 2000E provides a precision Multi-stage PulseWidth Modulation (PWM) MPPT charge control system to ensure the battery is properly and fully charged, resulting in enhanced battery performance with less battery maintenance. An equalize function is also included to periodically condition liquid electrolyte lead-acid batteries. A built in LCD digital display monitors solar charge performance. The display shows battery voltage, solar panel current and output charge current. You can actually see current boost working by noting the difference between solar panel current and output charge current. A charge status LED indicates the present charge mode, and shows when the battery has become fully charged. This 25-amp current boosting solar charge controller mounts in a 5-11/16" x 3-15/16" cut-out and is wired from the rear.

3-year limited warranty.

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Blue Sky Solar Boost MPPT Charge Controls

The Blue Sky Solar Boost features full reverse polarity protection, PWM charging and selectable charge voltage for flooded and gel lead-acid batteries. Output current limiting eliminates worry about overload or nuisance fuse blow when PV output is unexpectedly high. An equalize function is also included to periodically condition liquid electrolyte lead-acid batteries. An optional user friendly digital display is available to monitor PV charge performance. The display shows battery voltage, solar current, charge current and charge mode. It can be provided in the controller, as a remote panel installed up to 300’ away, or both. Optional temperature compensation of charge voltage is also available to further improve charge control and battery performance. Selectable compensation curves support lead-acid and Ni-Cad batteries. Solar Boost controls available with or without a digital display and an optional remote display that can be mounted up to 300 feet from the control is also available.

3-year limited warranty.

Solar Boost 50L

This charge control can be used on 12 and 24 volt systems. It can also be used to charge a 12 volt battery from a 24 volt array. Maximum open-circuit PV array voltage is 57 VDC.

 

Solar Boost 6024H

The 6024H is designed for charging 12 or 24 volt batteries from 36, 48 or 60 volt PV arrays (maximum open circuit voltage is 140). This allows for a much smaller wire size between the array and battery in large systems. Maximum charge current is 60 amps at 12 or 24 volts.

 

Solar Boost 3048

SB3048 is designed to charge 24 and 48 volt battery systems from a 48 to 60 volt array (maximum open circuit voltage is 140). Maximum charge current is 30 amps output at 24 or 48 VDC.

 

Solar Boost 2512i

The low cost Solar Boost 2512i provides fully automatic 3-stage charge control system. A partial IPN™ network interface is also included to allow use of the IPN-Remote or IPN-ProRemote displays. Additional features provided in the Solar Boost 2512iX include automatic or manually equalization, battery temperature sensor input, full IPN network compatibility, and an auxiliary output. The user congurable auxiliary output can serve as either a 25 amp load controller, or as a 2 amp auxiliary battery charger. The auxiliary battery charge feature is ideal for charging a separate battery such as the engine battery in an RV.

 

 

Solar Boost 3024i

SB3024i is designed to charge 12 and 24 volt battery systems from a 24 volt array (maximum open circuit voltage is 57). Maximum charge current is 30 amps output at 12 or 24 VDC. The new IPN network interface coordinates multiple controllers and shares temp sensors and display.

Optional Equipment

A remote temperature probe and a remote digital display that can be mounted up to 300 feet away can be used with all of the Solar Boost controls. Optional shunts allow the digital displays to monitor other charging sources and loads.

 

Model Description System Voltage Charge Amps Item Code MSRP Price Purchase
SB50L Charge Controller 12 or 24 50

20.3140

$432 $422  
SB50DL Controller w/ Digital Display 12 or 24 50 20.3137 $514 $486
SB50PDL Front Cover w/ Digital Display for SB50L 20.3134 $119 $105
SB6024HL Charge Controller 12 or 24 60 20.3143 $518 $492
SB6024HDL Controller w/ Digital Display 12 or 24 60 20.3146 $599 $555
SB6024HPDL Front Cover w/ Digital Display for SB6024HL 20.3131 $119 $105
SB3048L Charge Controller 24 or 48 30 20.3128 $493 $482
SB3048DL Controller w/ Digital Display 24 or 48 30 20.3125 $575 $550
SB3048PDL Front Cover w/ Digital Display for SB3038L 20.3131 $119 $105
SB2000E Charge Controller 12 25 20.3122 $236 $226
SB2512i Charge Controller 12 25 20.3123 $179 $154
SB2512iX Charge Controller 12 25 20.3124 $219 $199
SB3024i Charge Controller 12 or 24 30 20.3155 $299 $253
SB3024Di Controller w/ Digital Display 12 or 24 30 20.3156 $359 $309
SB3024PDi Front Cover w/ Digital Display for SB3024i 20.3157 $99 $93  
IPNPRO-S IPN ProRemote display w/ 500 amp shunt 20.3161 $199 $186
IPNPRO IPN ProRemote display 20.3162 $169 $155
IPNREM IPN Basic Remote 20.3163 $69 $65
Description of Optional Accessories
SB50RD25 Remote Digital Display w/ 25 ft. cable 20.3152 $112 $102
930-0022-20 Battery Temperature Sensor 20.3149 $30 $28
CS-100 Remote Shunt 100A/100mV 28.9245 $32 $29
CS-500 Remote Shunt 500A/50mV 28.9253 $42 $37

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PWM CHARGE CONTROLLERS

MORNINGSTAR CHARGE CONTROLS

Morningstar TriStar Charge Controllers

The TriStar pulse width modulated (PWM) controller can operate as a solar charge control, a load control, or a diversion regulator in 12, 24 or 48 volt systems. It can operate in only one of these modes at a time, but two or more controllers can be used to provide multiple functions. PWM operation may be changed to on/off operation to prevent telecom noise. Two models are available with UL current ratings of 45 and 60 amps. A choice of 7 different setpoints are easily selectable with DIP switches. An RS-232 communications enables PC connection to adjust control setpoints and data logging. An optional digital display may be mounted on the front of the controller or up to 100 feet away using 4-conductor phone cable with RJ-11 jacks. Battery temperature compensation may be added with the optional temperature sensor. Knock-outs on the bottom of the charge control match knock-out spacing on the Xantrex DC-175/250 disconnect and the Outback PS2DC and PS4DC power system components, allowing easy mounting on either.

  • Dimensions: 10.25"H x 5"W x 2.8"D
  • Weight is 3.5 lb..
  • UL Listed

5-year warranty.

Model

Description

System Voltage

Charge Amps

Item Code

Price

Purchase
TS-45 Tristar 45 Charge Control

12, 24 or 48

45

20.1105

$169

TS-60 Tristar 60 Charge Control

12, 24 or 48

60

20.1108

$218

RTS Battery Temperature Sensor

20.1141

$32

TS-M Digital Display mounts on front of Charge Control

20.1113

$99

RM Remote Display with 100 ft. cable

20.1115

$136

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Morningstar ProStar Charge Controllers

Recently revised, this sophisticated line of PV charge controls incorporates constant voltage PWM to make maximum use of valuable PV power. They have automatic equalization, temperature compensation and very high efficiency. Can be used on 12, 24 and 48 volt systems with sealed, gel and wet-cell lead-acid batteries.

Front panel LED’s indicate when the batteries are being charged and relative battery state-of-charge. Reverse polarity protection on input and output. In the event of a load short circuit, the load is automatically disconnected. "M" models include LCD meter of battery voltage, PV charging current, and load current.

LVD is current-compensated to prevent false disconnect when the battery is heavily loaded. Units are conformal coated to guard against corrosion.

  • Dimensions: 6.01" x 4.14" x 2.2".

5 year warranty.

Model

Description

System Voltage

Charge Amps

Item Code

Price

Purchase
PS-15 ProStar 15

12 or 24

15

20.1120

$112
PS-15M ProStar 15 w/ Digital Display

12 or 24

15

20.1123

$179  
PS-15M-48V ProStar 15 48Volt w/ Display

48

15

20.1126

$222  
PS-15M-48-PG 48Volt w/ Display & Positive Ground

48

15

20.1129

$239  
PS-30 ProStar 30

12 or 24

30

20.1132

$152
PS-30M ProStar 30 w/ Digital Display

12 or 24

30

20.1135

$219  
PS-30M-PG 30 w/ Digital Display & Positive Ground

12 or 24

30

20.1138

$236  
RTS Battery Temperature Sensor

20.1141

$32
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Morningstar SunSaver Charge Controls

The SunSaver is a very reliable charge controller and uses the same battery charging algorithm as the ProStar and offers many of the advantages of the ProStar for smaller systems, at a reduced cost. Constant voltage pulse width modulation (PWM) charging is a proven advance compared to the common on/off PV regulators.

SunSavers are field-selectable for sealed or flooded batteries. A rugged anodized aluminum case and epoxy encapsulated electronics ensure durability and longevity. A temperature compensation sensor in the charge control varies full charge voltage with temperature.

They have LED charging and load control indicators in LVD models.

  • Dimensions: 6" x 2.2" x 1.3".

5-year warranty.

Model

Description

System Voltage

Charge Amps

LVD Amps

Item Code

Price

Purchase
SS-6-12V SunSaver 6

12

25

No

20.1245 $48
SS-6L-12V SunSaver 6 w/ LVD

12

6

6

20.1248 $59
SS-10-12V SunSaver 10

12

10

No

20.1230 $55
SS-10L-12V SunSaver 10 w/ LVD

12

10

10

20.1233 $70
SS-10L-24V SunSaver 10 w/ LVD

24

10

10

20.1236 $76
SS-20L-12V SunSaver 20 w/ LVD

12

20

20

20.1239 $95
SS-20L-24V SunSaver 20 w/ LVD

24

20

20

20.1242 $101
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Morningstar SunLight Charge Control with Lighting Control

The SunLight has all the features of the SunSaver control.  It also has a rotary switch that allows it to turn on the loads afterdusk for 2, 4, 5, 8, or 10 hours. It also has the option to turn loads on at dusk, off and on again before dawn. In this configuration, you can choose the following settings (in hours): 3/off/1, 4/off/2, or 6/off/2. On from dusk to dawn is also possible. A test button turns light on for five minutes.

  • Dimensions: 6.6" x 2.2" x 1.3".

Five year warranty.

Model

Description

System Voltage

Charge Amps

LVD Amps

Item Code

Price

Purchase

SL-10L-12V

SunLight w/ LVD

12

10

10

20.1218

$108

SL-10L-24V

SunLight w/ LVD

24

10

10

20.1221

$116

SL-20L-12V

SunLight w/ LVD

12

20

20

20.1224

$141

SL-20L-24V

SunLight w/ LVD

24

20

20

20.1227

$148

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Morningstar SunGuard Charge Control

The SunGuard uses the same charging circuit as the SunSaver. It is ideal where a 12-volt low-power control is needed. It can control up to 75 watts of PV module(s). Since it is epoxy encapsulated, it can be used outdoors in a harsh environment. Dimensions are 2.5" x 2" x 1.6" with wire leads for connecting module and battery. 5-year warranty.

Model

Description

System Voltage

Charge Amps

LVD Amps

Item Code

Price

Purchase

SG-4

SunGuard

12

4.5

No

20.1215

$30

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Morningstar SunKeeper Charge Control

The SunKeeper is available in 6 amp or 12 amp versions at 12 volts DC. To withstand the high temperatures at the solar module, the controller has been designed using extremely efficient power electronics and is rated to 70C. The SunKeeper is also certified for use in Class 1, Division 2 hazardous locations, making it an ideal controller for solar powered oil/gas applications.Mounts in 1/2" knockout 5-year warranty.

Model

Description

System Voltage

Charge Amps

Item Code

Price

Purchase

SK-6

Sunkeeper6

12

6

20.1252

$63

SK-12

Sunkeeper12

12

12

20.1253

$89

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XANTREX CHARGE CONTROLLERS
XW-MPPT60-150
The XW-MPPT60-150 can used with PV arrays with a voltage equal to anything from battery voltage to 150 VDC and can support an output of up to 60 amps into the battery for battery voltage of 12 to 60 VDC. The PV open circuit voltage must not exceed 150 VDC.

Maximum power point tracking allows the charge controller to harvest the maximum energy available from the PV array and deliver it to the batteries. The MPPT algorithm continuously adjusts the operating points in an attempt to find the maximum power point of the array. The algorithm can then determine if it is harvesting more or less power than the previous operating points.  The charge controller has a configurable auxiliary output (producing 5 to 13 volts at 200 mA) to drive a relay for load control or to turn on devices such as vent fans or indicator alarms. The auxiliary output can be configured to perform only one function at a time.

Its large aluminum heat sink allows it to operate at full power with only convection cooling, without the need for a fan. Built-in PV ground fault protection allows code-compliant installation without the need for additional ground fault protection. The XW-MPPT60-150 can be mounted on the side or top of the XW power distribution panel, or used by itself in other PV systems. The front panel features a 2-line 16-character display and four buttons for configuration and system monitoring. A battery temperature sensor is included with the controller.

The XW-MPPT60-150 is able to communicate its settings and activity to other Xanbus-enabled devices, such as the XW Series inverter/charger, the system control panel II (SCP), XW automatic generator start (XW-AGS), and other Xantrex XW-MPPT-60-150 solar charge controllers through the Xanbus network.

Array size can be up to 750 watts when charging a 12-volt battery, 1,500 watts when charging at 24 volts and 3,000 watts when charging at 48 volts. See the Xantrex array sizing tool at www.xantrex. com/support

Dimensions are 14 ½"H x 5 ¾"W x 5 ½"D and weight is 12 lbs.

5-year warranty.

Xantrex model Description  Item code MSRP Price Purchase

    XW-MPPT60-150

60-amp MPPT charge controller 20.8040 $650 $605
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Xantrex C-35, C-40 and C-60 PWM Controllers

The Xantrex C-35, C-40, and C-60 PWM controllers can be used as PV charge controls, DC load controls or DC diversion regulators in 12, 24 and 48* volt systems. They operate in only one mode at a time, so to provide both PV charge control and low battery load disconnect, two controls must be used. As DC load controls they disconnect the load at a user settable low voltage and reconnect at a higher voltage reconnect point. As diversion controllers they send excess power to a "dummy load" such as a water or space heater to regulate hydroelectric or wind generators.

All of the Xantrex controllers, when used as a charge control, have field-adjustable bulk and float setpoints and perform automatic equalization every 30 days or whenever LVD is reached. Equalization can be manually initiated with automatic shut-off. Order the optional temperature sensor for more accurate battery charge control.

The optional LCD Digital Display shows battery voltage, array amps and watts, cumulative amp-hours and a separately resettable "trip" amp-hour measurement. The digital display is available for mounting on the front of the charge control, or with a 50 or 100 foot cable for remote mounting in a double-gang electrical box. UL-listed.

2-year warranty.

*Only the C40 can be used in 48 volt systems.

Model

Description

System Voltage

Max PV Amps

Item Code

MSRP

Price Purchase
C-35 Charge Control

12 or 24

35

20.8004

$119

$111
C-40 Charge Control

12, 24 or 48

40

20.8005

$159

$147
C-60 Charge Control

12 or 24

60

20.8009

$199

$184
BTS/15 Battery Temperature Sensor with 15 foot cable

20.8025

$29  $29 
BTS/35 Battery Temperature Sensor with 35 foot cable

20.8029

$32

$32
CM Digital Display mounts on front of charge control

20.8016

$99

$96
CM/R50 Remote Display with 50 foot cable

20.8019

$126

$119
CM/R100 Remote Display with 100 foot cable

20.8017

$146

$138
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Xantrex C-12 Charge / Lighting Control

The Trace C-12 controller is PWM microprocessor based and ideal for small village power systems, vacation homes, outdoor area lighting, sign lighting, and bus shelters. It has a 12 amp low voltage disconnect and an automatic lighting control. The lighting control turns the light on at dusk, then has an adjustable duration timer for 2 to 8 hours of run time, or can be set to run all night. If the battery gets low, lights are turned off. User-adjustable LVD set points.

  • Dimensions: 6.5" x 4.3" x 1.5".
  • UL-listed.

2-year warranty.

For use in 12 volt systems only. Can be mounted outdoors.

Model

Description

System Voltage

Max PV / Load Amps

Item Code

MSRP

Price Purchase

C-12

Charge Control / Lighting Control

12

12 / 12

20.8002

$110

$102
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SCI RV Charge Controllers

These charge controllers are designed for the RV market where thousands are used every year by motorhome manufacturers. They are designed to flush-mount in a rectangular cut-out. They have a digital amp and volt meter for accurate information and an LED bar graph display for at-a-glance battery status.

Charging is set to stop at 14.4 volts and resume at 13.0, but the full charge level can be adjusted by turning a small screw on the back of the circuit board. Terminal strip on back of unit accepts up to 10 AWG stranded wire. The Mark15 and 22 control has array and battery fuses on the back of the panel and a switch to set the display to volts or amps or off. The optional black anodized aluminum box can be used to surface-mount this control on a wall.

Knock-outs are provided for wiring.

  • Dimensions: 7.5"W x 4.25"H x 1.5"D.

5-year warranty.

Model

System Voltage

Charge Amps

Item Code

Price

Purchase
Mark15/12

12

15

20.4215

$119

Mark22/12

12

22

20.4217

$129

Surface Mount Box

20.4211

$25

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Phocos CX Charge Controls

Phocos CX 12/24 volt solar charge controls have exceptional features at a very good price. They feature PWM regulation, with integrated temperature compensation, low battery load disconnect and a comprehensive display Battery state of charge, charge and discharge current and faults are clearly displayed on an LCD a bar graph.

These only consume 4 mA at night. The deep discharge protection function can be set up to three different modes: voltage controlled, SOC controlled or adaptive (fuzzy logic).

CX controls have a built-in data logger. Data can be accessed by a PC by using the CX-USB interface converter. Data includes maximum and minimum batttery voltage, state-of-charge at beginning and end of day, amp-hours produced by PV array and more. Daily data is available for the past 7 days.

Other features include audible warnings and a programmable nightlight function.

Phocos charge controls cannot be used in systems where the array, battery and load negatives are grounded so they cannot be used in systems that meet the N.E.C.

  • Dimensions are 3.5" x 3.5" x 1.5".
  • Not UL Listed.

3-year warranty.

Model

System Voltage

Max PV Amps

Max Load Amps

Item Code

Price

Purchase
CX10

12 or 24

10

10

20.5004

$58

CX20

12 or 24

20

20

20.5005

$78

CX40