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Wholesale CTECHi Buck - boost 48V Mppt Solar laderegler 12V 24V 36V 48V solar Regler mppt Regler fur Solar Energy System With Good Price

Wholesale CTECHi Buck - boost 48V Mppt Solar laderegler 12V 24V 36V 48V solar Regler mppt Regler fur Solar Energy System With Good Price

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OEM WELCOME
ODM ACCEPTABLE
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SKD (SEMI KNOCK DOWN)SERVICE

CTECHi Buck-Boost MPPT Solar Charge Controller:

  • High-Efficiency MPPT: Maximize solar panel output for faster battery charging.

  • Buck-Boost Technology: Works with a wide range of battery voltages (12V, 24V, 36V, 48V).

  • Bulk Buy Discounts: Get the best price on high-quality MPPT solar controllers.

  • Factory Direct:  Ensure quality and fast turnaround times.

  • Applications: Ideal for off-grid solar systems, RVs, boats, and more.

Improve your buying power and offer superior products to your customers.  Contact CTECHi today to discuss your bulk MPPT solar charge controller needs!


1. DC-DC buck-boost charging mode with negative grounding design, suitable for use in energy storage devices.
2. Advanced MPPT scanning technology and effective temperature management, efficient, reliable, and durable solar DC charging.
3. Support SEL, GEL, FLD, LI, and USE battery types.
4. Support 12V/24V/36V/48V automatic detection, lithium battery requires the user to set the system voltage.
5. PCBA bonded with polyurethane & silicon compound, for a great cooling and waterproof system, ensures better charging
performance in high temperature and high humidity environments.
6. Support RS485, CAN communication, using Modbus, RV-C communication protocol (support customer customization protocol and
communication media), optional remote LCD screen.

Function: 

* 12/24/36/48V battery system auto recognition

* <150Voc max PV input voltage

* 20A max charge current

* 300W/12V; 600W/24V900W/36V;1200W/48V max PV input power

* 300 days max data logging

* 0.3W max self-power consumption

* Negative grounded design

* Inbuilt BT module for APP operation

Advanced Maximum Power Point Tracking (MPPT) Technology

* Fast MPPT starts with ultra-fast sweeping of the entire V-I curve

* Smart MPPT algorithm ensures better tracking in multiple power points

* High PV harvest performance in weak sunlight conditions

* Excellent peak efficiency exceeds 98%

High Quality & Functions

* No cooling fan; over-rating size heating sink

* Over-rating electronic components to minimize the power loss from heating

* Full charge power output up to 45ºC

* Compensates battery charge voltages with the use of a temperature sensor

* LCD screen display; key operation for parameter settings

* Lead-acid AGM/GEL/Flooded & Lithium batteries supportable

Reliable Electronic Protections

* Advanced protection for battery charge & discharge

* Over-heating protection by power derating if the temperature is high

* Allow max 25% exceeding rated power without controller damage

* Extensive protections including PV reverse polarity & reverse current protection

Extensive Device Functions

* RS485 port for Modbus communication

* External port for multiple devices parallel use

* Extra 20A DC load output control with various load modes

* External Bluetooth module connection for APP operation

* External remote LCD connection

Controller Parameter
Value
Model No.
CT-4820CUK
CT-4840CUK
Battery System Voltage
12V/24//36V/48V Auto (FLD/GEL/SEL/USE) Manual (LI/USE)
No-load Loss
10mA
Max Solar Input Voltage
<150Voc
Rated Solar Charge Current
20A
40A
Max Solar Input Power
300W/12V; 600W/24V 900W/36V;1200W/48V
600W/12V; 1200W/24V 1800W/36V; 2400W/48V
Light Control Voltage
5V
Light Control Delay Time
10s
Operating Temperature
-25°C ~ +55C
IP Protection
IP32
Net Weight
1.2kg
2.2kg
Operating Altitude
≤ 3000 m
Controller Dimension
220*159*58mm
240* 180* 80mm
Communication Port
RS485+Bluetooth(App) /CAN Optional
Protection
PV Over-Voltage, PV Reverse Protection, Battery Over-Charge, Battery Reverse Protection, Controlle Over-Heating, High Ambient
Temperature
Key
1 Key (Set the battery type and the system voltage)
Key Function
1. Short press-view the battery type, the SET indicator flashes and the others represent the battery type
2. Long press-enter the setting, SET indicator is always on, the rest of the indicators are flashing, short press can adjust the
parameters


Battery VoltagesBattery Parameters
Battery TypesFLDSELGELUSELI(Lifepo4)
Equalize Charge Voltage
14.8V*n14.6V*n---
Boost Charge Voltage14.6V*n14.4V*n14.2V*nDefault:GELDefault:14.2V
Float Charge Voltage13.8V*n
13.8V*n
13.8V*n
Default:GEL
-
Boost Charge Recovery Voltage13.2V*n
13.2V*n
13.2V*n
Default:GEL
-
Over-discharge Recovery Voltage-
-
-
Default:GEL
-
Over-discharge Voltage---Default:GEL
-
Auto Temperature Compensation-3Mv/2V/℃--
-



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