Overview
SBC7220 Programmable PWM PV Charge Controller with 10 Night Light Modes
The SBC-7000 Series PV charge controller is designed for use with all types of photovoltaic panels and different types of batteries, such as wet or sealed lead acid, lead calcium, and lead antimony batteries.
The MCU (Microprocessor controller) is programmed with 3 stage charging algorithms and with 0~100% PWM (Pulse Width Modulation) duty cycles to provide the fastest, optimal charging current and voltages from PV panels according to the actual state of charge and type of battery.
The 3 stages (Bulk, Absorption, Float) and *Equalization* charging cycles ensure complete charging cycles and maintenance of lead acid battery automatically. Bulk and Float threshold charge voltage levels are user-adjustable to meet specific battery manufacturers’ recommendations.*Equalization Charging is only for the wet type lead acid Battery, which automatically cycles once a month for 2 hours. Equalization Charging can be de-activated or re-activated manually.
Hence, maximum PV charging efficiency and longer service life span of the battery are ensured.Ampere Hour logging readouts in three sets, today and the last two days are shown on the LCD. This is useful to check the condition of PV data for efficiency and actual capacity of your system.
Electronic blocking of back current to PV and overcharging battery protection are standard.
Features
- User-adjustable charging voltages
- Suitable for all types of lead-acid batteries
- Microprocessor controls PWM with 3-stage charging algorithms
- Bulk, Absorption, Float stage, PV charging current, Battery voltage on LCD display
- Ampere Hour logging readouts of 3 days
- 5 state LED indications of battery levels with reference to PV voltage
- Electronic Overcharge Protection & blocking current from battery to PV panel
- Over-temperature protection of the controller’s electronic circuit
- 10 selectable Night Light programs
- User-defined battery low voltage disconnect and reconnect for load terminal
- Optional remote temperature sensor for the battery to provide precise right charging
- Optional remote signal/control terminal for synchronization of unit’s load terminal
Specifications
Specifications
| Battery Voltage | 24V DC |
| Maximum PV Panel Open Circuit Voltage | 52V DC |
| Continuous Load/Charge Current | 20A |
| Maximum Charger Current | 25A |
| Maximum Load Current | 25A |
| Operating Current (no load and no PV) | ≤15mA |
| Voltage Across Terminal (PV to Battery) | ≤0.8V |
| Voltage Across Terminal (Battery to PV) | ≤0.4V |
| Fuse | 30A |
| Battery Charging Float Voltage Setting | Adjustable from 24.0-33.0V |
| Battery Charging Bulk Voltage Setting | Adjustable from 24.0-33.0V |
| Low Voltage Disconnect (LVD) | Adjustable from 16V to 32V |
| Low Voltage Reconnect (LVR) | Adjustable from 16V to 32V |
| Display | LCD + LED |
| Protection | Battery Reverse Polarity Protection, Over Charge/Discharge Protection, Over Temperature Protection |
| LVD | Adjustable 18V to 30V DC |
| LVR | Adjustable 20V to 32V DC |
| Dimensions (W×H×D) | 150mm × 85mm × 45mm (5.9″ × 3.3″ × 1.8″) |
| Weight | 470g (16.5oz) |
| Battery Status LED Indication | 5 State LED Indications |
| Charging Status LCD Indication | 3 State LCD Indications |
| Recommended Wire Size | #10AWG for SBC7220 |
| Operating Ambient Temperature | −10°C to 50°C |
| * All values are based on the Standard ambient Temperature 25°C and Pressure 0.1Mpa. | |
