12V Solar Charger
Nominal 12V DC output with a 20A current-limit rating and automatic boost and float charging.
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Solar Charge Controller for 12V and 24V Battery Charging Systems
The CP Series Solar Charger Regulator provides automatic boost and float battery charging, with 12V and 24V configurations rated at 20A, 30A and 40A for solar power applications.
The CP Series is a low-loss solar charge controller designed to regulate charging between a solar power source, battery and connected DC load. It combines automatic boost and float charging with electrical protection and visual status indication.
Three configurations are documented: CP12-20, CP12-40 and CP2430 (also identified as CP24-30 in the original specification filename). The 12V models are rated at 20A and 40A, while the 24V model is rated at 30A.
Each model includes LED indicators for solar input, battery and load status. Integrated protection functions address reversed polarity, output overcurrent, short circuits, battery overcharging and excessive battery discharge.
AVAILABLE MODELS
12V and 24V Solar Charge Controller Options
Choose between the three published models according to the battery system voltage and required charging current.
Higher-Current 12V Charger
Nominal 12V DC output with a 40A current-limit rating for higher charging-current requirements.
24V Solar Charger
Nominal 24V DC output with a 30A current-limit rating and automatic boost and float charging.
SYSTEM FEATURES
Solar Battery Charging and Protection Features
Automatic Battery Charging
Automatic boost and float charging provides two charging modes for the connected battery system.
Battery Charge and Discharge Protection
The regulator incorporates battery overcharging protection and over-discharging cut-off protection.
Electrical Fault Protection
Solar input and battery reversed-polarity protection are combined with output overcurrent and short-circuit electronic fuse protection.
LED Status and Terminal Connections
Dedicated SOLAR, BATTERY and LOAD LED indicators provide visual status information. Terminal blocks are provided for the solar input, battery and DC load.
TECHNICAL DETAILS
CP Series Technical Specifications
The following values are taken from the original product specification sheets. Dimensions and ratings differ between models.
| Specification | CP12-20 | CP12-40 | CP2430 |
|---|---|---|---|
| Nominal DC Output | 12V | 12V | 24V |
| Current Limit Rating | 20A | 40A | 30A |
| Specified Charging Input Voltage | 17–21V | 17–21V | 34–42V |
| Charging Method | Auto Boost / Float | Auto Boost / Float | Auto Boost / Float |
| Line Regulation (CLM) | 0.1% per V | 0.1% per V | 0.1% per V |
| Load Regulation (CLM) | 1% | 1% | 1% |
| Operating Temperature | 0–60°C | 0–60°C | 0–60°C |
| Relative Humidity | 0–95% RH | 0–95% RH | 0–95% RH |
| Dimensions (W × D × H) | 110 × 215 × 55mm | 120 × 214 × 55mm | 120 × 214 × 55mm |
| Approximate Weight | 1.2kg | 1.8kg | 1.8kg |
The charging input values above follow the manufacturer's specified floating voltage conditions. They should not be interpreted as unrestricted solar panel input ratings. Model selection and solar source compatibility should be confirmed before installation.
SYSTEM SELECTION
Matching the Controller to Your Solar Charging System
Selecting a solar charger regulator requires consideration of battery voltage, the expected charging current, the solar source characteristics and the connected DC load.
The CP12-20 and CP12-40 are intended for nominal 12V systems, while the CP2430 is specified for nominal 24V output. The manufacturer provides separate current limits and input charging conditions for each model.
Verify the solar input and battery arrangement against the original specification sheet before connecting the system.
ORIGINAL TECHNICAL DOCUMENTATION
CP Series Solar Charger Regulator Specifications
The three original specification images show the published electrical ratings, charging characteristics, protection functions and product dimensions.
CP12-20
12V / 20A
CP12-40
12V / 40A
CP2430 / CP24-30
24V / 30A
PRODUCT HIGHLIGHTS
What You Get
Three documented solar charger regulator models for nominal 12V and 24V DC systems.
Automatic boost and float battery charging with model-specific current ratings.
Battery, solar input and DC load indication, with electrical protection functions.
Terminal connections for the solar input, battery and DC load.
SOLAR CHARGER ENQUIRY
Find a Suitable CP Series Solar Charge Controller
Share your battery system voltage, solar charging requirements and expected DC load to identify a suitable CP Series model.
Spec MicroMate Solar Regulator Charger CP12 20.pdf
184.99 KB
Spec MicroMate Solar Regulator Charger CP12 40.pdf
178.02 KB
Spec MicroMate Solar Charger CP24 30.pdf
181.42 KB
Inquiry - CP Series Solar Charge Controller (12V/24V, 20A–40A)