Solar Converters EQ 12/24-20A, DC to DC, Up/Down Converter

NOTE: This unit should not be used as a step up or step down transformer to power a load directly. Step up applications can use the CV, constant voltage regulator units and step down applications can use the PPT step down transformer. Using the EQ in either of these applications can cause damage to the EQ and will void warranty.

EQ 12/24-20

Solar Converters Inc.
Battery Equalizer
Model: EQ 12/24-20

Proper use of the EQ unit is to equalize the battery bank when a load is connected to only part of the bank. For the application of a 12 volt load running from a 24 volt battery, the 12 volt load is connected across the 12 volt section of the battery bank. The EQ is connected across the entire battery as well as the 12 volt section of the battery. The EQ will keep both the upper and lower part of the battery bank equal.

Application

When connected as a battery equalizer, it allows large transient 12 V loads to be taken off the centre tap of a 24 V battery (made of 2 X 12 V batteries) without fear of upsetting the voltage balance of the battery and destroying the 24 V battery system that would otherwise occur.

Features

• >95% efficiency, typically 96% over 20% load
• Simple to use
• Bi-directional power flow * Weatherproof
• NEMA 4 enclosure

Voltage Regulation Mode

Proportional:

This standard unit regulates the output voltage proportional to 1/2 the input when connected 24 V input and regulates the output to 2 X input when connected 12 V input. This characteristic, when connected across 2 X 12 V batteries in a 24 V configuration, will keep the batteries at equal voltages.

Fixed:

Special units are available for example EQ 12/24-20 RXX where XX is the voltage on the 12 V side that the voltage is to be regulated to. For example, EQ 12/24-20 R5 will output 5 V @ 20 amps.

Mechanical Specifications

• Enclosure: Weatherproof, NEMA 4 enclosure
• Dimensions: 4.5" X 2.5" X 2" nominal, resembling a junction box with feet
• Temperature Range: -40 deg C to 60 deg C
• It is recommended, as with all electronics, that the unit not be placed in direct sunshine.
• Terminations: 6" flying leads
  • Red: High Input +
  • Black common
  • Neg - for input and output voltage
  • White: Low Input +
• Wire size: red, black, white: Power leads #12 AWG
• Humidity: N/A weatherproof

Electrical Specifications	Input low side	Input high side
Input Voltage (nominal battery)	12V	24V
Output Voltage	24V	12V
Output Current	10A Current Limited	20.0 Current limited
Ripple at load	30mV rms	30 mv rms
Efficiency	>96%	>96%